Shared Services Standards
DIVISION 26 – ELECTRICAL
26 32 13 – Engine Generator – Diesel
Equipment Description
1. Self-contained diesel engine-generator set
a. Complete skid mounted genset package unit consisting of the following for a complete and
operating system
i. Engine
ii. Generator
iii. Auxiliary systems
iv. Unit control panel
v. Sound attenuated aluminum enclosure
vi. Stainless Steel Silencer
vii. Sub Base UL 2085 listed fuel storage tank
2. Manufacturers:
a. Diesel engine-generators shall be the specified model of the latest commercial design with all
necessary controls.
b. The manufacturing facility shall be ISO 9001 certified
c. The three preapproved vendors by purchasing are Ring Power (Caterpillar), Zabatt Power
Systems (AKSA), and Cummins.
d. Engine-generators shall meet all EPA regulations.
Size
1. 40 kW to 3,000 kW
Generator Requirements
1. Rating
a. Each engine-generator set shall be capable of producing rated output at rated generator RPM
when equipped with necessary operating accessories such as air cleaners, lubricating oil
pump, fuel transfer pump, radiator fan, jacket water pump, governor, alternating current
generator and exciter.
b. Standby duty rated at (40 to 3,000) EKW, KVA,
c. Generator shall be brushless type, rated at .8PF, three phase, 60 Hertz, 480 volt, or 240 Volt
(if required), delta connected, 4 wire, 1800 RPM.
i. 0.8 lagging power factor.
ii. Delta 240v connected
iii. 4 wire
iv. 480 volts standby duty for 480 volt service, or 240 volt standby duty for 240 volt service.
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v. Engine-generators shall have reconnectable leads to enable JEA to get a variety of
voltages from the equipment.
d. Unit shall be sized to operate two pumps simultaneously, started in sequence unless specified
otherwise. Unit shall be rated such that each pump, upon start-up, will not experience greater
than 20% instantaneous voltage dip, also considering auxiliary power requirements.
Responsibility for sizing generator shall lie with the generator supplier.
e. Operating ambient temperature range of 7 OF to 105 OF
f.
Directly connected to the engine flywheel housing with flex coupling.
g. Unit shall be in compliant to UL 2200 labeled.
h. Unit shall be in compliant to NFPA 110.
i.
Generator shall be engine driven, single bearing, continuous duty, salient pole, and
synchronous type with amortisseur windings. It shall be of the drip-proof type, entirely selfcontained with only line leads brought out for loading connections. Generator insulation used
shall be NEMA Class H such that generator life will match that of the prime mover. Generator
shall be designed so all components are accessible with a minimum amount of labor.
i. The maximum voltage dip (including any instantaneous voltage dip) during starting shall
be 20%.
j.
A vacuum pressure impregnation (VPI) process shall be utilized on form wound stator
windings.
k. The Supplier shall provide a stator coil pitch, coil distribution, and skew to minimize the total
harmonic distortion (THD) to less than 5 percent.
l.
Stator winding shall be 2/3 pitch (67 percent).
m. An automatic voltage regulator with 3-phase sensing shall be provided. The regulator shall
have over excitation protection. A static voltage adjuster shall be provided to use with
automatic synchronizer.
i. Voltage regulator shall be modular construction, replaceable as an assembly and shall
provide regulation for single unit operation within plus or minus 2 percent from rated
voltage at any steady state load between "no load" and "full load."
n. Generator shall have static excitation systems, which shall incorporate silicon control rectifiers
to provide alternator field excitation. Static excitation system shall have capacity to provide
150 percent of required excitation at rated load and rated voltage. Static excitation system
shall incorporate circuitry to permit voltage build-up from residual magnetism. Field flashing
from a separate source is not acceptable.
o. Voltage level and voltage gain control shall be provided and easily accessible for normal
operating adjustments. Voltage level control shall have a minimum range of plus or minus 5
percent from rated voltage. Provide voltage adjustment instruction and generator schematic
wiring diagram permanently attached on inside of exciter assembly.
p. Certain applications may require the use of a permanent magnet generator. The generator
supplier shall be responsible for recommending this type of alternator where circumstances
warrant its use.
q. Generator drive shall be free from critical torsional vibration within the operating speed range.
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r.
Generator neutral shall be closed.
2. Generator Control Panel
a. Automatic generator starting electronic modular control panel in a metal enclosure. Starting
section shall automatically start engine upon failure of normal source through starting contacts
in automatic transfer switch. Transfer unit shall serve to operate as follows: Failure of normal
supply shall cause its voltage sensitive relay to close a normally open contact initiating starting
cycle of diesel engine. Closing of this contact shall cause power to be fed to a throttle
solenoid, which picks up, opening fuel rack and energizing starting motor through one of its
contacts. As generator voltage approaches normal, relay coil in the cranking panel shall pick
up, opening starting circuit through one of its contacts, thereby disconnecting starting motor
from the rest of the circuit. Lack of oil pressure or over-temperature of cooling system will
cause second relay in cranking panel to be energized, as normal alternator voltage is
approached, causing starting cycle to be terminated immediately. Should engine fail to start for
any reason, a time delay relay in cranking panel limits its cranking period to 30 seconds. A
push-button switch mounted on cranking panel shall allow engine to be further cranked at the
operator's discretion. Resumption of normal power shall open engine contacts in transfer
switch and shall cause engine to shut down after 5 minute delay. Each engine-generator shall
have a digital type generator-mounted control panel and shall be supplied with vibration
isolators of the type suitable to isolate the control panel from the engine-generator vibration.
b. The control system features shall include the following:
i. Automatic generator loading and unloading for open load transfer.
ii. Automatic synchronizing – The automatic synchronizing scheme shall be designed to
select and synchronize the engine-generator unit across each switch.
iii. Dead bus closing system
iv. VAR/PF control
v. Engine Speed Control
vi. Isochronous or droop mode
vii. Automatic/Manual Start-Stop with the following safety shutdowns
1. Over-speed protection and indicator
2. Low lube oil pressure protection and indicator
3. High coolant temperature protection and indicator
4. Over-crank protection and indicator
5. Low coolant level protection
6. Engine Control Switch (Three-Position: Stop - Manual - Auto)
7. Indicator/ Display Test Switch
8. Digital Voltage Adjust Potentiometer (plus 10 percent - 25 percent Range)
viii. AC METERING
1. AC Volt Meter
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2. AC Amp Meter
3. Frequency Meter:
4. Ammeter/Voltmeter Phase Selector Switch Four Position (Phase 1,2,3, and Off)
ix. All engine-generator units shall be capable of interfacing with JEA SCADA equipment.
x. Two normally open dry contacts that will close when the engine is running and open when
engine is stopped.
xi. Generator control section shall be 600 volt, with amperage sized to match pump station
service and shall include a 3 pole generator circuit breaker with shunt trip. Shunt trip shall
be actuated by any of the engine safety devices.
xii. Emergency stop push button to shut the engine down regardless of the switch position.
xiii. Fuel pressure monitored by ECU/ control panel.
xiv. Tachometer.
xv.
Fuel leak detection.
xvi. Dry contacts rated 120 volts, AC, 5 amps shall be provided for annunciation of all safety
shutdowns, and all control panels mounted visual indicators. Safety shutdowns and
control panel visual indicators shall include all items required by NFPA 110 Level 1. Dry
contacts shall close on safety shutdown or when visual indicators are illuminated and
open when the condition is cleared. In addition a common alarm (generator alarm)
contact shall be provided that closes when any of the above mentioned contacts close.
The common alarm contact shall open when all conditions are cleared. In accordance
with the NFPA requirements, alarm module shall be a dc system.
xvii. All items shall be included on the control panel, assembled, wired, and tested in the
supplier’s shop.
xviii. The control panel shall have adequate clearance from the engine to permit engine
maintenance without moving the control panel.
xix. Automatic Exerciser:
1. Supplier will provide an Automatic Exerciser for each unit. This exerciser will
automatically start, transfer load, run, transfer load back, and cool down unit on a
weekly basis for a minimum of one hour for water treatment and waste water
treatment facilities. Operating schedule must be fully adjustable both on length and
frequency. The Automatic Exerciser must be provided by the same manufacturer who
provides the controls and is a part of the controls package.
3. Engine-Generator Interface to JEA SCADA system
a. The following inputs for each engine-generator set shall be set up for the interface to a
Siemens ET200S Distributed I/O Module. The ET200S module will feed the generator status
information to the SCADA equipment over Profibus. Contacts from the generator shall be
prewired and labeled to the ET200S. Connect Greenleaf EFC-420.1 data converter and
Transfer Switch contacts.
b. Digital Inputs to ET200S (Are to be connected in this order)
i. Generator Run (From Generator)
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ii. Generator Fault (From Generator)
iii. Fuel Leak (From Greenleaf data converter)
iv. Normal Power Available (From Transfer Switch)
v. Transfer Switch Normal (From Transfer Switch)
vi. Transfer Switch Emergency (From Transfer Switch)
c. Analog Input to ET200S
i. Fuel Level (From Greenleaf data converter)
d. The Bill of Material below is the list of the devices to be provided and installed with each
engine-generator.
Quantity Part #
6ES7131-4BD000.4
0AA0
6ES7134-4GB001
0AB0
6ES7138-4CA001
0AA0
6ES7151-1AA031
0AB0
6ES7193-4CA400.6
0AA0
6ES7193-4CD201
0AA0
6ES7972-0BA501
0XA0
6ES7 972-0DA001
0AA0
1
PT 1x2-BE
1
PT 3-PB-ST
1
Standard DIN Rail
Manufacture
Description
Siemens
Electronic module, 4DI, DC 24V, standard (5 pcs.)
Siemens
Siemens
Electronic module, 2AI, I, standard, for 2-wire-MU
PM-E DC 24V power module for electronic modules, with
design.
Siemens
IM 151-1 for connecting the ET200S to PROFIBUS DP
Siemens
Universal terminal module; screw connection (5 pcs.)
Siemens
Terminal module for AUX1 supply; screw connection
Siemens
Profibus fast connect RS485 connector 90 Deg. with PG Port
Siemens
Phoenix
Phoenix
Active profibus terminator provide in ET200S rack
Base for PLUGTRAB PT 1x2 Plugs
Surge Protection Plug for Profibus
Standard DIN Rail for mounting the ET200S
1.1.
The PLC will be powered from the 24VDC supply from the Generator so that if AC power
is lost the ET200S will be kept active.
1.2.
Fourteen (14) #14 Blue SCADA digital input wires shall be provided for each unit and ran
back to SCADA RTU cabinet.
1.3.
Two (2) TSP #18 shielded pair of analog inputs shall be provided for each and ran back
to SCADA RTU cabinet. TSP wire shall be Belden 3072 Twinax.
Engine Requirements:
1. Diesel engine shall be heavy-duty type to meet EPA Regulation.
2. Arranged for direct connection to an alternating current generator and shall be the product of a
manufacturer regularly engaged in the building of full diesel engines. Engine shall be a current
model which has been in regular production for at least three years. Engine shall develop sufficient
brake horsepower, net at rated RPM, corrected to sea level barometric pressure (29.92 in. HG) and
110 degrees F, to operate generator continuously at its rated output with all losses included without
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undue heating, vibration or wear. Diesel engine shall be water cooled four cycle compression
ignition diesel. The engine exhaust manifold shall have an expanded metal guard spread
sufficiently away from hot parts
3. Engine shall meet the required capacity when operating on ultra-low-sulfur no. 2 diesel fuel.
4. Engine shall be supplied with electronic governor capable of .25 percent speed regulation from no
load to full rated load for isochronous regulation of engine speed. Belt-driven or velocity governors
are not acceptable.
5. Engine shall be equipped with a pressure lubrication system supplying oil to all surfaces requiring
lubrication. Circulation shall be by a positive displacement pump. Lubrication system shall include a
full flow strainer, oil filter, and an oil cooler of sufficient capacity to properly cool all lubrication oil
circulated, and level indicator or dipstick.
6. Engine shall have an individual mechanical injection pump and injection valve for each cylinder,
any one of which may be removed and replaced from parts stock. Injection pumps and injection
valves shall not require adjustment in service. Fuel injection pumps shall be positive action,
constant-stroke pumps, actuated by a cam driven by gears from the engine crankshaft.
7. Fuel lines between injection pump and valves shall be heavy seamless tubing; and, to eliminate
irregularity of fuel injections, shall be of the same length for all cylinders.
8. Fuel system shall be equipped with replaceable fuel filter elements which may be easily removed
without breaking any fuel line connections or disturbing the fuel pumps or any other part of the
engine. Provide easily serviceable fuel/water separator/filter ahead of other fuel filters.
9. All fuel filters shall be conveniently located in accessible housing, ahead of injection pumps so that
fuel will have been thoroughly filtered before it reaches the pumps. No screens or filters requiring
cleaning or replacement shall be used in injection pump or injection valve assemblies.
10. Engine shall be equipped with a built-in gear-type engine-driven fuel transfer pump, capable of
lifting fuel against a head of twelve feet, for supplying fuel through filters to injection pump at
constant pressure.
11. Engine shall be provided with suitable safety controls to automatically stop the unit when low oil
pressure, water temperature or engine speed exceeds safe limits. Pilot lights shall be provided to
visually indicate the cause of engine shut down. Pilot lights shall operate off battery circuit and shall
be on engine generator control panel. Provide contacts for remote engine failure annunciation.
12. Engine shall be equipped with radiator and blower fan of sufficient capacity for cooling engine
when diesel electric set is delivering full rated load in an ambient temperature of 122 degrees F. Air
flow restriction from radiator shall not exceed 0.5 inches H20. Engine shall have a thermostat
integral with jacket water circuit to maintain water at proper operating temperature. Engine shall
have a belt driven centrifugal type water circulating pump for circulating water through cooling
system.
13. Provide one or more engine mounted dry type air cleaners of sufficient capacity to protect working
parts of the engine from dust and grit.
14. Engine shall be equipped with an oil/ vapor recovery container or box that meets EPA regulations.
The intent of the recovery system is to not allow the blow by waste to escape into the atmosphere
or soak the radiator coils, as well as be a possible housekeeping issue around the enginegenerator.
15. Water cooled diesel engine, sized for generator set.
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16. All engine exhaust emissions shall meet EPA requirements for standby power generation.
17. Engine starting system shall include an electric motor start system including dc starting motor,
required voltage battery pack and rack, cables, and battery charger.
a. For engine-generator sets rated 750 kW and above, a redundant electric starting motor shall
be provided.
18. The batteries shall be of the lead acid type. The battery shall be sized to provide the specified
number of starts, cranking time at firing speed (five 10 second cranks) at any ambient between
minimum (7 OF) and maximum (105 OF) design ambient temperatures, with final discharge
voltage, exceeding minimum control power supply voltage requirements. Batteries shall be lead
acid type complete with cables and rack. Battery shall be rated in accordance with requirements of
engine manufacturer. Batteries shall be located for easy removal and servicing.
19. Battery Charger:
a. Current limiting battery charger to automatically charge batteries.
b. Charger shall be dual charge rate with automatic switching to boost rate when required.
c. Charger shall be mounted at rear of engine-generator set inside the enclosure.
d. Control wire connection between starting and safety circuits shall be pre-connected before
arriving at job site.
e. The service powered battery charger shall float charge the battery pack and shall be solidstate, full wave bridge rectified type, using silicon controlled rectifiers for power control. The
battery charger shall be suitable for the required voltage, and current, battery pack type, shall
have a dc output circuit breaker, floating voltage equalization, equalizing timer, a ground
detection system, a voltage relay to activate low battery voltage alarms at the enginegenerator control panel, and battery charger failure which shall alarm at the engine-generator
control panel.
20. Cooling System:
a. Engine shall be cooled with a unit-mounted radiator cooling system complete with:
i. radiator
ii. expansion tank
iii. water pump
iv. belt-driven fan
v. fan guard
vi. thermostatic temperature control
vii. high water temperature cutout
viii. electric jacket water heater
b. The jacket water heater shall be sized for Northeast Florida climate and shall maintain jacket
water at 90 F in an ambient temperature of 30 degrees F.
c. The jacket water heater shall be thermostatically controlled, if “acorn” type heaters with
nonadjustable thermostats are provided then they shall not be oversized to waste energy or
burn up hoses and shall be single phase, 60 Hertz, and applicable voltage .
d. All jacket water heaters hoses shall be silicone type.
e. All jacket water heaters hoses shall have shut off valves at engine, supply and return as to
allow maintenance personnel to swap out hoses without draining all the fluids.
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f.
The radiator shall be sized to handle the cooling of the engine and all other accessories
required for proper operation in the North Florida Region.
g. The fan shall draw air over the engine and discharge through the radiator.
h. The radiator coils shall be 100% dipped in Bronze-Glow (husky coil coat) to provide additional
protection on coils for all units do to the corrosive atmosphere at JEA water and waste water
facilities.
i.
The cooling system shall be filled with a permanent antifreeze mixture of 50 percent ethylene
glycol type with rust inhibitor.
Enclosure/ Silencer:
1. Complete diesel engine generator set including control panel, engine starting batteries and fuel oil
tank shall be enclosed in a factory assembled water protective, sound attenuated aluminum
enclosure.
a. Enclosure for units with greater than 250 kW nominal capacities shall be of the walk in type
and shall be of the drop over configuration, suitable for pad mounting or on base fuel storage
tanks. Minimum distance from engine-generator and generator to end wall shall not be less
than 3’-0” for walk in type enclosures. The complete engine-generator set shall be enclosed in
a modular, walk-in type, weatherproof enclosure. The enclosure shall provide 6 ft. minimum
head clearance and 24 inches minimum walk around clearance on sides not including radiator.
The enclosure will consist of two sidewalls, two end walls, louvers, and roof.
b. The enclosure for units with nominal capacity of 250 kW or less shall be of the non-walk in
type and shall be attached to the skid rails or sub base fuel tank at the supplier’s shop. The
enclosure will consist of two sidewalls, two end walls, louvers, and roof.
c. The enclosure shall be made of anodized marine grade aluminum white panels. Doors shall
be lockable by padlock with stainless steel hardware for access to the engine-generator,
controls, and accessories. Doors shall also provide easy accessibility for maintenance.
Enclosures shall be polished. Supplier will remove all advertising and labels on the exterior of
any enclosure. Drop over type enclosures shall have a rubber gasket under it with a rubber
cement type adhesive to keep gasket in place to prevent water intrusion into enclosure as well
as keep engine fluids from leaking out.
d. The enclosure shall be constructed of removable side panels and end panels. All fasteners
and hardware used in construction of the enclosure shall be stainless steel. The enclosure
shall be braced as necessary to support the silencer and designed to withstand 150-mph wind
without damage. All bracing and reinforcing members shall be integral to the enclosure. Roof
penetrations for the installation of the silencer shall have a gasket to prevent the entrance of
rain. The unit shall have continuous hinged side doors each side and continuous hinged doors
at control end, equipped with pad lockable hardware for ease of engine maintenance and a
three-point latch system. Doors shall be a minimum of 36”. There shall be an expanded metal
grating or a punched louvered radiator core guard installed - flush with the enclosure panels in
front for the radiator grill, and fixed, punched louvered air intake ports on the enclosure sides
and rear for proper air circulation within the housing provide lifting eyes and spreader bar
reinforcement for crane unloading. A stainless steel handle mounted at the control panel entry
door.
e. The louvers shall be screened from the inside to prevent the entry of insects. The enclosure
shall have all penetrations gasketed or sealed to prevent the entry of rodents. “Rain
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Resistant” louvers, as manufactured by Ruskin or Cesco, vertical air turning plenums, or equal
shall be provided to prevent the entrance of rain when the unit is operating and the wind
direction is at 90 degrees to the air intake at 120 mph. The entire enclosure, except for the
louvered openings, shall be provided with noise suppression insulation mechanically secured
and fastened.
f.
Enclosures shall be provided with noise suppression insulation and air plenums designed to
provide a sound level of mechanical noise of 86 dB (A) at 15 feet from any point of the
enclosure Minimum of two industrial T8 fluorescent fixtures, spring wound timer light switch,
prewired distribution circuit, power panel, and duplex receptacles shall be conveniently
provided in the enclosure. The light switch and receptacles shall be provided near generator
control panel. Provisions shall be made for mounting batteries and rack inside the enclosure.
The generator breaker, generator control panel, distribution (lights, jacket water heater, etc.)
power breaker panel, batteries and accessories shall be located in the enclosure. Enginegenerator supplier shall provide and install a 240/120V transformer adequately sized to handle
all enclosure loads from service voltage. Transformer shall feed off of load side of auto
transfer switch via a fused or breaker contact located inside ATS.
g. All engine oil and coolant drains shall be piped to outside of enclosure with shutoff valves and
shall have threaded stainless steel or aluminum caps. The threaded drain lines shall be
labeled on the outside of the enclosure with an aluminum label with aluminum or stainless
rivets.
h. Enclosure shall be Phoenix Products, Advanced Manufacturing & Power Systems Inc., or
Fidelity Manufacturing.
i.
Power Supply:
i. Each engine-generator set will be provided with a single 480V ac power supply capable of
being rewired for lower voltages.
ii. Each engine-generator shall be provided with a power panel sized to power the required
loads inside the enclosure by the Supplier as specified herein. The engine starting and
controls will operate from the dc-powered batteries specified herein.
iii. Each engine-generator unit shall have a 120V ac, single phase, 60 Hz, panel, and shall
be mounted inside the enclosure and shall be isolated from engine-generator vibration.
The Supplier shall determine the number of branch circuit breakers required, and furnish
additional of 10% spares. Circuits must be labeled in panel. The power panel shall be
prewired to all engine-generator accessories, including but not limited to the following:
1. Enclosure intake and exhaust louvers.
2. Engine-generator starting system (battery charger).
3. Engine electric jacket water heater.
4. Enclosure lights and receptacles.
j.
Each engine-generator unit shall be furnished with complete exhaust system including a
stainless steel exhaust silencer, all-stainless steel piping, all-stainless expansion joints and
accessories as required for a complete operating system.
k. The exhaust silencer shall be chamber type, of all-welded Type 304L stainless steel
construction with all stainless steel hardware and fasteners.
i. The silencer shall be of the side inlet type
ii. Secured in position at no less than 4 points
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iii. The silencer shall be supported by a welded stainless angle iron cradle; silencer shall be
bolted or strapped to cradle and then bolted to the roof support members mounted inside
the roof of the enclosure for a horizontal mounting on top of the enclosure.
l.
The silencer shall be sized so that the backpressure at rated capacity of the engine does not
exceed one half the supplier’s maximum allowable backpressure. The silencer shall be
suitable for critical type silencing and shall be a Maxim “Model M51” or equal.
m. All exhaust piping shall be Type 304L, Schedule 10S stainless steel, and the exhaust shall
discharge horizontally at the silencer outlet, with 45 degree bevel cut with a stainless
expanded metal bird screen.
n. The intake of the silencer shall connect to the flexible exhaust connection by stainless steel
pipe. Size as required by engine manufacturer. A flexible stainless steel exhaust adapter, 18
inch minimum length, shall be furnished for mounting between the engine and silencer. The
flexible exhaust connection as specified shall mount directly on exhaust manifold and shall be
mounted so that no weight is exerted on the manifold at any time.
2. Instrument transformers, instruments, and associated devices:
a. Current Transformers. Current transformer mechanical and thermal limits shall be coordinated
with the momentary and short time ratings of the switching device with which JEA utilizes.
The thermal ratings shall be based on a short-circuit duration of 1 second or greater. The
minimum current transformer accuracy rating shall be C200.
b. Voltage Transformers. Voltage transformer shall have a rating of not less than 500 voltamperes on a thermal basis and a capability of withstanding a secondary short-circuit for not
less than 1 second. Each transformer shall be provided primary and secondary fuses. The
primary fuses shall be adequately rated for the transformer inrush and load current, and they
shall have an interrupting capacity equal to or greater than the maximum short-circuit
momentary current rating required. The connections from the main buses to primary of the
voltage transformer shall be capable of carrying the rated short-circuit current for a minimum of
1 second.
Fuel System / Tank:
1. Each engine-generator unit shall be furnished with a complete fuel system, including engine-driven
fuel pump, fuel filter/ water separator, engine supply and return line, all stainless steel flexible
connections, manual fire-safe shutoff valves, and anti-siphon valve if required by FDEP. All items
shall be suitable for the specified fuel. The engine-driven fuel pump shall transfer the fuel from the
fuel storage tank to the engine-generator. The fuel system shall be furnished with any equipment
required for the engine to supply or return any unused portion of fuel back to the fuel storage tank
with any level in the tank.
a. JEA Maintenance and Environmental Departments must be notified by supplier 30 day, 10
day, and 48 hours in advance of above ground fuel storage tanks shipments greater than 550
gallons. All FDEP above ground fuel storage tank and piping regulations must be followed and
required notification given to JEA Project Manager and JEA Maintenance coordinator.
2. All manual stainless steel fire-safe shutoff valves and a filter/ water separator shall be provided on
the fuel supply line. The shutoff valve and the filter/ water separator shall be located upstream
from the flexible connection at the engine-generator.
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3. All manual stainless steel fire-safe shutoff valves on separate standalone fuel storage tanks shall
be mounted in the vertical direction at the fuel storage tank just above the pickup tube, before any
solenoid or anti-siphon valve and shall be welded.
4. There shall be no shutoff valves on any fuel return line.
5. There shall be an anti-siphon valve above the manual stainless steel fire-safe shutoff valve on all
fuel tanks 551 gallons and above as required per FDEP. All anti-siphon valves must be adjustable
and sized for exact rise and run of fuel piping per the site conditions.
6. Fuel system shall be equipped with replaceable fuel filter elements, which may be easily removed
without breaking any fuel line connections or disturbing the fuel pumps or any other part of the
engine.
7. All fuel filters shall be conveniently located, ahead of injection pumps so that fuel will have been
thoroughly filtered before it reaches the pumps. No screens or filters requiring cleaning or
replacement shall be used in injection pump or injection valve assemblies. The combination fuel
filter/separator shall be a manifold unit with shutoff valves and shall be installed on the fuel supply
line between the fuel storage tank and the engine driven pump, and shall as manufactured by
Racor or equal.
8. The manual fire safe shutoff shall be ball valve of three piece design, with stainless steel body and
end caps, stainless steel ball and stem, reinforced Teflon seats and seals, and socket welding
ends. Valves shall be of fire safe design and shall utilize secondary metal seating surfaces to
ensure shutoff if the primary seats are destroyed by fire. Fire safe ball valves shall be Contromatics
or Jamesbury.
9. Fuel oil cooler shall be supplied if the engine fuel system absorbs heat from the unit injectors and
surrounding jacket water. The fuel cooler shall be radiator mounted, air-cooled to cool the return
fuel as required to maintain proper fuel operating temperature. The cooler shall utilize the airflow
from the radiator fan for cooling. Any coils shall be 100% dipped in Bronze Glow (husky coil coat)
to protect against corrosion.
10. Storage tanks shall be insulated secondary containment aboveground storage tank system for
flammable and combustible liquids shall be vehicle impact protected and projectile resistant and
must meet UL 2085 standards. Tank shall be a steel tank housed in a double containment concrete
vault/tank and supplied by Phoenix Products, Convault or Fidelity Manufacturing
a. The tank shall be tested to and listed (and carry UL/ULC labels) for the following:
i. UL – 2085, two hour furnace fire test and two hour simulated pool fire test for insulated
tank.
ii. UL – 2085, insulated and protected secondary containment aboveground tanks for
flammable and combustible liquids.
iii. UL – 2085 ballistic and vehicle impact test for protected tank.
iv. The tank shall withstand bullet resistance tests in compliance with UFC Section (79-7)
v. The tank shall be supplied with flood resistant tie-down brackets/hurricane hold-down
restraints.
b. Steel Tank Construction:
i. Steel tank shall be made of 3/16 inch thick steel. The steel tank shall hold the liquid
fuel. The tank shall be made in accordance with UL Standard 2085 and ULC Standard
S601 covering all aspects of tank fabrication including material specification, fabrication,
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 36 of 63
Approved By: SSST
Shared Services Standards
ii.
iii.
iv.
v.
welding and testing. The steel tank’s exterior shall be coated with primer and paint for
protection against corrosion.
At the fabrication shop, the tank shall undergo a 24 hour pressure test at 5 psig.
Secondary Containment:
1. The steel tank shall be wrapped with a minimum of ¼ inch thick Styrofoam (foam)
insulation and an impervious barrier of 30 MIL high density polyethylene membrane
(poly). The 30 MIL poly shall provide containment for a fuel leak through the steel
tank. A leak detector pipe terminating in the secondary containment shall provide
positive-proof that the tank is not leaking.
2. The 30 MIL poly, shall shield and protect the steel tank exterior from coming in
direct contact with the concrete and thus minimize the potential of tank external
corrosion.
Concrete Vault:
1. The tank and secondary containment shall then be encased in a 6 inch thick
reinforced concrete vault. The 6 inches of concrete shall be poured on all sides,
bottom and top of the tank in one step and be monolithic. This process assures that
there are no joints and no heat sinks in the concrete to carry heat from a fire into
the primary containment.
All double wall sub-base and standalone tanks coatings shall be approved by a JEA
representative.
1. The double wall sub-base tank shall have a sloped top if exposed to weather
conditions as to allow rain water to run off. All sub-base tanks and standalone tanks
if mounts are available shall be secured to concrete slab with stainless steel anchor
bolts and washers.
11. Engine-generators with nominal capacity of 150 kW and less shall be furnished with a complete
fuel system including double wall sub-base type fuel storage tank unless stated otherwise. The
tank shall be UL2085 listed, vented, and shall normally be used to store the specified petroleum
product at atmospheric pressure.
12. All above ground fuel storage tanks shall meet or exceed UL2085 standards.
13. Rupture basin with 110% capacity.
14. The sub-base fuel storage tank shall have a minimum capacity to provide 75 hours continuous
operation of the engine-generator at 100 percent load, up to 500 gallons maximum capacity. The
sub-base tank shall be of welded steel construction throughout and shall be constructed to permit
access to the electrical stub up area.
a. 75 hour capacity at 100% at full load up to 150kW gensets.
15. Engine-generator greater than 150kW capacity may be furnished with an approved above ground
fuel storage tank with a minimum storage capacity to provide 60 hours continuous operation of the
engine-generator at 100 percent load.
a. 60 hour capacity at 100% at full load above 151kW gensets.
16. The fuel storage tank shall be provided with the following items:
a. Vent cap
b. Primary Vent shall not exceed height of enclosure per sub base tanks.
c. Emergency vents
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 37 of 63
Approved By: SSST
Shared Services Standards
d. EFG-8000I Greenleaf fuel level gauge
e. EFC-420.1 4-20mA data converter
f. Manual fuel stick with gallons to inch laminated conversion chart
17. The fuel storage tank shall be provided with the following connections:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
Fuel supply
Fuel return
Fill with pad lockable cap and overspill containment
Back up mechanical Kruger fuel level gauge
Vent
Primary tank emergency vent
Low level switch
Leak detection
Secondary tank emergency vent
Secondary tank Mechanical Krueger leak gauge
Placard set stating size, fuel fill, vent, emergency vent, combustible, No smoking and Diesel
on two sides and near fuel fill.
18. The fuel storage tank shall have controls that include but not limited to the following:
a. Greenleaf Solar Gauge EFG-8000-I with EFC -420.1 4-20 mA data converter. The gauge shall
monitor fuel level in gallons, interstitial leak, hi, and low fuel level.
i. The EFC-420.1 4-20 mA data converter shall be mounted inside the generator control
panel and shall be wired to the EFG-800I gauge and output feeds to SCADA shall include
two sets of twisted pairs wires (TSP#18 Belden 3072F Twinax).
ii. All electrical runs shall be in either rigid or non-metallic liquid tight conduit.
iii. The EFG-8000-I gauge shall be mounted on the outside of the enclosure if on a base tank
less than 500 gallons and at fuel fill end. All penetrations through enclosure shall be
weather tight. For no or low light conditions EFG-12V is required for the EFG-8000-1I
gauge.
iv. For all standalone fuel storage tanks up to 3000 gallons the EFG-8000-I gauge shall be
mounted on the fuel level probe nipple at the fuel fill end of the fuel tank. All conduits
going from the EFG-8000-I gauge to the EFC-420.1 data converter in the generator
control panel shall be aluminum grade with aluminum or stainless unistrute with clamps
securely attached to the concrete slab. No penetrations shall be made in to the above
ground fuel storage tank.
1. For tanks greater than 3001 gallons the EFG-8000-I gauge shall be mounted at eye
level on the end of the tank at the fuel fill end. All conduits going from the EFG-8000-I
gauge to the EFC-420.1 data converter in the generator control panel shall be
aluminum grade with aluminum or stainless unistrute with clamps securely attached
to the concrete slab. No penetrations shall be made in to the above ground fuel
storage tank.
b. Level gauge, capable of measuring the fuel level without the engine running.
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 38 of 63
Approved By: SSST
Shared Services Standards
19. Tank fill connection and level gauge shall be accessible for personnel at ground level through a
lockable door in or outside the enclosure. A fill spill containment box shall be sized for 5 – 10
gallons and provided for containment of spillage during tank fill.
a. Pad lockable overflow fuel fill port and caps with stainless steel hasp.
b. Spring type plunger fuel fill port drain
20. A suitable sized vent connection and vent cover shall be provided for the storage tank vent. The
vent cover shall be installed outside the enclosure. The cover shall have an aluminum body,
screen over the outlet, and shall prevent rain from entering the vent line.
21. A suitable sized emergency vent connection and emergency vent shall be provided for the primary
and secondary fuel storage tank. Each emergency vent shall be installed outside the enclosure
and shall be designed as required to relieve excessive internal pressure caused by fire exposure.
22. Primary vent shall not exceed height of enclosure per sub base tank and not block engine exhaust
pipe.
23. All flexible diesel fuel piping inside enclosure or at engine-generator shall meet SAE 100R17 hose
with stainless connections to prevent against corrosion and fire. All threaded connections shall
utilize Hercules Chemical Company Inc. Multipurpose heavy Teflon “Tape Dope” and “Megaloc and
or Real-tuff”.
24. The diesel fuel piping shall be standard weight (Schedule 40) 316 stainless steel with socket
welded fittings per ASTM standards. At the option of the supplier, use Schedule 40 316 stainless
steel with welded fittings. All piping shall be welded and done by a certified pipe welder. Where
threaded union is required use Hercules Chemical Co. “Megaloc or Real-tuff” all-purpose pipe dope
on all stainless steel threaded connections. Vendor/ Contractor must warranty all piping
connections to be free of any leaks, drips or weeping for one year. As an alternative, flanged
fittings with petroleum grade gasket may be used in lieu of a union.
25. Above ground fuel storage tanks that have fill box openings over 60 inches above grade shall have
aluminum or stainless steel stairs and platform at the fuel port. Larger base tanks/ enclosures that
have a walk-in type enclosure shall have access stairs or ladders that are located on two sides of
the enclosure / base tank made of aluminum or stainless steel. The stairs/ platform shall be
secured to concrete slab using stainless anchor bolts and washers.
26. Supplier shall provide 90% of fuel for rated tank capacity for any and all turnkey installations by
supplier. Fuel shall be number 2 off road ultra-low sulfur diesel. Fuel delivery shall take place prior
to load bank test. Supplier shall treat fuel with Marine DEE-ZOL as state by product manufacture
Bell Performance Inc.
Shop Painting:
1. All components of each engine-generator unit, including engine, fuel storage tank (if applicable),
alternator, piping, ad valves shall be shop primed and finish painted prior to shipment to the site.
The paint shall be suitable to an outdoor environment and shall be approved by JEA. Stainless
steel, nonferrous, and nonmetallic surfaces shall not be painted.
a. One quart of finish paint and brush shall be provided with each equipment package for field
touchup painting.
b. Fuel storage tank with ferrous metal (base tanks) shall be surface prepared to protect all
surfaces from corrosive environment at JEA facilities. Metal shall be solvent cleaned on all
surfaces to be coated utilizing approved system by JEA Facilities Operations. The entire pipe
fittings and nipples on the tank shall be powder-coated to protect them from corrosion.
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 39 of 63
Approved By: SSST
Shared Services Standards
Shop Testing:
1. The drive and generator shall be completely factory assembled and tested by the Supplier to prove
that they are assembled correctly, and capable of meeting the net generator output kVA rating. All
other components and support systems shall be thoroughly inspected by the Supplier prior to
shipment. All control system shall be tested to verify correctness of assembly and operation,
applicable high potential test before and after load runs, and applicable standard tests. The
integrity and proper connection of all electrical circuits shall be verified.
2. The tests shall consist of specified capacity loading changes (25 percent, 50 percent, 75 percent
and 100 percent of primary duty kW) under a .8 power factor reactive testing to be performed at the
factory for a minimum of 4 continuous hours total, and demonstrate that each safety shutdown
device is working properly. The Supplier shall submit copies of the onsite tests prior to start of
warranty. Shop tests shall be performed in northeast Florida.
3. The Supplier shall notify JEA at least one week prior to the shop test. JEA reserves the right to
witness the shop test.
4. If such tests indicate specified performance has not been met, the Supplier shall pay the cost of all
corrective measures and additional tests until such time as tests demonstrate that specified
performance has been met.
Operating Conditions:
1. Each engine-generator unit will be used as a power unit when the utility-supplied power fails, and
shall provide the specified minimum nominal standby capacity for the duration of 60 - 75 hours
minimum at full load.
2. The unit shall be capable of being started, synchronized to the system and loaded to the full rating
of the unit without dependence upon ac auxiliary power for a minimum of five minutes. The voltage
shall remain +/-10% unless stated otherwise.
3. Each engine-generator unit shall be suitable for “black start” conditions and shall automatically
start, and connect to electrical loads when initiated from an automatic transfer switch.
4. Each engine-generator shall be supplied with monitoring the following: generator run, generator
fault, normal power available, emergency power available, fuel level, and leak alarm.
5. Fuel tanks for the engine-generators with nominal output capacity of greater than 150 kW can be
furnished from an approved above ground tank supplier UL 2085. Fuel for engine-generators with
nominal output capacity of 150 kW and less will be supplied fuel from a sub-base type fuel storage
tank UL 2085.
Start Up and Testing:
1. Prior to acceptance of the installation, each unit shall be tested at the job site to show it is free of
any defects and will start automatically and be subjected to full resistive load test at rated capacity,
1 power factor, with enclosure using dry type load banks. Supplier shall provide startup personnel
to train personnel and witness the tests. Testing by Supplier shall be for a period of four continuous
hours and shall be done in the presence of the JEA representative.
a. The supplier shall furnish the services of one or more technical service representatives to
assist in the installation of new engine-generators. The service representatives shall be
technically competent; factory trained; experienced in the installation and operation of the
equipment; and authorized by the supplier to perform the work stipulated.
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 40 of 63
Approved By: SSST
Shared Services Standards
b. Supplier will start up and service the engine-generators utilizing its own technicians and will
not subcontract any start up work out.
c. For new engine-generators, the Supplier shall also furnish the field services of direct
representatives of the manufacturers of auxiliary equipment which has rotating parts, or which
may require field inspection and adjustment to assure proper operation.
d. The technical service representatives shall furnish written certification to JEA that equipment
has been inspected, adjusted, and passed load bank test by them or under direction and that it
is ready for service. All written certification must be duplicated and one copy left onsite in the
Manual-Pak maintenance folder and the other electronically sent to the JEA Project Manager
in Facilities Operation and Maintenance.
e. The duties of technical service representatives may include, but may not be limited to the
followings:
i. Providing technical advice to assist a contractor in installing the equipment.
ii. Inspection and testing the equipment after installation and directing any changes or
adjustments required to assure proper operation. The engine-generator unit shall be field
tested by the field service representative(s) for compliance with the specified
requirements. The tests shall include but not necessarily limited to the followings:
1. Ability to start and synchronized to an energized bus.
2. Ability to start connects to and brings up a dead bus.
3. Net output at design conditions.
iii.
iv.
v.
vi.
f.
Providing technical direction during startup and initial operation of the equipment.
Directing the correction of any design or manufacturing errors.
Instructing JEA’s personnel in the operation and maintenance of the equipment.
Providing services required as a condition to providing warranties and guarantees
specified.
Service Representatives and Technicians required for installation and start-up are included in
the initial engine-generator pricing.
i. Technical Service Representative includes all expenses including, but not limited to, small
tools and consumables, travel, meals, per diem, salaries, benefits, overheads, etc.
g. The load bank will be capable of definite and precise incremental loading and shall not be
dependent on the generator control instrumentation to read amperage and voltage of each
phase. Rather, the test instrumentation will serve as a check of the generator set meters.
h. Correct amount and grade of crank case oil, coolant, and other fluids necessary for initial
testing and operations shall be supplied with each unit.
i.
On completion of the installation, the initial inspection for correct installation and start-up shall
be performed by a factory-trained representative of manufacturer. At the time of start-up,
operating instructions and maintenance procedures shall be thoroughly explained to the
operating personnel.
i. In addition to equipment specified, each generator shall be equipped with all standard
equipment as specified by the manufacture for this model and shall include but not be
limited to the following necessary items:
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 41 of 63
Approved By: SSST
Shared Services Standards
1. Initial filling of oil and antifreeze.
2. Shrink wrap applied to the product to ensure a clean finish.
3. During the start-up, the technician shall record the following information and provide
to the owner for his records:
a. Operating Voltage
b. Hz
c. Phase
d. kW
e. KVA
f. Connected load (Amperage)
g. Package information consisting of:
i.
Generator & Engine Make
ii.
Generator & Engine Model
iii.
Generator & Engine Serial Number
iv.
Start-up date
j.
Prior to acceptance, any defects, which become evident during this test, shall be corrected by
Supplier at no additional expense to JEA.
k. Vendor must coordinate all start up and testing activities with the engineer and owner. After
installation is completed by others and normal power is available, the vendor must perform a
one (1) day start-up including the use of building load. The start-up technician will instruct all
necessary personnel how to operate and maintain the equipment in accordance to the
manufacturer's requirements.
l.
The Supplier’s representative shall provide training as required for JEA in the proper operation
of the equipment. The supplier shall provide at no additional cost to JEA any and all software
and data ports to communicate with engine-generator EMC panels.
Warranty:
1. Two (2) year standard standby generator warranty and an additional Three (3) year comprehensive
(parts and labor) standby generator warranty. Labor, materials, and travel for the warranty period
repair will be paid by manufacturer during normal business hours. Comprehensive warranty shall
cover the following:
a. Cooling System
b. Thermostat Housing
c. Water Manifold Housing
d. Jacket Water Precooler
e. Jacket Water Pump
f.
Thermostat
g. Radiator & Fan
h. Fuel System
i.
Steel Fuel Lines
j.
Fuel Shutoff Solenoid
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 42 of 63
Approved By: SSST
Shared Services Standards
k. Fuel Injectors
l.
Fuel Transfer Pump & Housing
m. Fuel Priming Pump
n. Fuel Transfer Pump
o. Lubrication System
p. Pan, Pump Cooler
q. Crankcase Breather
r.
Engine Oil Pump Drive
s. Prelubrication Pump
t.
Electric System
u. Control Module (ECM)
v. Sensors: All Engine Sensors
w. Wiring Harness & Connectors
x. Starter
y. Engine Alternator
z. Alternator End
aa. Alternator, including Rotor, Stator, and Exciter
bb. Generator Controls
cc. Power Center
dd. Air Induction & Exhaust
ee. Exhaust Manifolds, Studs & Gaskets
ff. Inlet Air Heater Relay
gg. Intake Manifold
hh. Turbocharger(s)
ii.
Air-to-Air Aftercooler Cores
jj.
Muffler/Exhaust System
kk. Exhaust Guards
ll.
Diesel Oxydation Catalyst
mm. Short Block
nn. Cylinder Block Casting
oo. Crankshaft
pp. Connecting Rod Assembly
qq. Piston, Wrist Pin, Retainer Clip & Piston Rings
rr. Idler and Timing Gears
ss. Accessory Drive
tt. Cylinder Head
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
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Approved By: SSST
Shared Services Standards
uu. Cylinder Head
vv. Intake & Exhaust Valves
ww. Valve Mechanism
xx. Camshaft, Camshaft Bearings, Key, Gear
yy. Front & Rear Covers
zz. Front Cover/Plate/Housing/Gears & Gaskets
aaa. Vibration Damper
bbb. Flywheel Housing & Gasket
ccc. Crankshaft Front & Rear Seal
ddd. Optional Aftertreatment Coverage
eee. Diesel Particulate Filter
fff. Selective Catalytic Reduction
ggg. and any additional manufacture components, having a manufactures part number, installed by
an authorized dealer.
hhh. The Platinum Plus coverage also covers all authorized dealer overtime for warranty repairs
and all rental equipment for equipment down longer than 48 hours.
iii. Tank manufacturer shall provide its standard 30 year warranty.
26 36 23 – Automatic Transfer Switches
Delayed Transition, 3-pole, double throw type, rated 480 volts A.C. amperage (or 240 Volts A.C. amps
if indicated) to match service size as indicated on drawings. Switch shall be electrically operated,
mechanically held type switch and shall have Transient Voltage Surge Suppressor (TVSS) protection.
Switch shall be equipped with full relay protection and shall transfer load to emergency source when
one or more of the 3-phase voltage falls below 85 percent. It shall automatically return load to normal
when all normal line voltages have been restored to 90 percent or more.
Auto transfer switch shall be equipped with an engine starting contact and with an emergency lockout
relay to prevent switch from closing load on emergency generator until proper voltage and frequency
have been reached. Switch shall be equipped with one time delay, adjustable from 1/6 to 180 seconds
in the engine starting contact circuit to prevent contact from closing until a predetermined delay has
occurred. Switch shall be equipped with another time delay relay adjustable from 1/6 to 180 seconds
which will, after a predetermined time, allow the emergency generator circuit to remain closed after
normal power has been restored to at least 90 percent voltage. Switch shall be equipped with a time
delay, to run engine for 5 minutes at no load on retransfer to normal power source. Provide two
additional auxiliary contact switches, 1 normally open and 1 normally closed.
Brand:
Transfer switch shall be Zenith Model ZTS-D/L, ASCO Series 4000 (with exception class IV stations
shall be 7000 series with Bypass-isolation), Russelectric RTS-3 type delayed transition transfer switch
with microprocessor controls.
Where an ASCO 7000 series is specified or equal, a two-way bypass-isolation switch shall provide
manual bypass of the load to either source and permit isolation of the automatic transfer switch from all
source and load power conductors. Bypass to the load-carrying source shall be accomplished with no
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 44 of 63
Approved By: SSST
Shared Services Standards
interruption of power. The bypass handle shall have three operating modes: "Bypass to Normal,"
"Automatic," and "Bypass to Emergency. The "Open" mode shall completely isolate the automatic
transfer switch from all source and load power conductors. When in the "Open" mode, it shall be
possible to completely withdraw the automatic transfer switch for inspection or maintenance to conform
to code requirements without removal of power conductors or the use of any tools. When the isolation
switch is in the "Test" or "Open" mode, the bypass switch shall function as a manual transfer switch.
Enclosure:
Transfer switch enclosures shall be available in UL NEMA 1, NEMA 3R, and NEMA 3RX
For exterior applications of the ATS a UL Type Secure NEMA 3RX (316 Grade Stainless Steel)
enclosure shall be of the secured type. The control panel will be housed inside of the cabinet on an
inner full height door/panel away from vandalism and the corrosive environment. All electrical
penetrations into ATS shall be from the bottom side of the enclosure. The outer weather tight full height
secured door shall be constructed with a closed cell gasket door, a three-point pad lockable latch
exterior door arrangement, and a continuous hinge the full height of the door. Supplier will provide strip
heaters in all ATS enclosures.
Warranty: 5 years
26 51 13 – LED Light Fixture, Bay Lighting, Interior Location, Non Corrosive Environment
Lithonia – Model JCBL High Bay LED Lighting for a non-corrosive environment or JEA
approved equal
LED Light Fixture, Interior Location – The committee has reviewed it as a suitable
upgrade/replacement of conventional lighting systems such as 400W metal halide warehouse light
fixture. Applications include manufacturing, warehousing, and other large indoor spaces with
mounting heights ranging from 10'-40' to the bottom of the luminaire. The luminaire shall be a
suspended mount only.
Construction – JCBL features an aluminum heat sink to maximize heat dissipation and extend the
life of the luminaire by maximizing contact with the LEDs. A glass optical enclosure (IP65 rated)
protects the LEDS from dust and other air contaminants. The prismatic acrylic reflector is the
preferred option which will mount to the heatsink.
Optics - Reflector and lens options provide maximum versatility and uniformity including up to 8%
uplight with reflectors alone. Conical, flat or acrylic drop lenses offer enhanced aesthetics, minimize
glare at lower mounting heights and maximize uplight (13%) when paired with acrylic reflectors.
Electrical - L70 at 55,000 hours. Provide a thermally protected driver standard with 0-10V
dimming. The input watts are 200W for the 25,926 lumen unit that would replace a 400W metal
halide luminaire.
Installation – Mounting options include cast hook and cord factory installed or ¾" NPT threaded
hub to accommodate stem or hook options.
Listings - UL1598/C SA C22 .2 250, Buy American Act, Damp location listed. Suitable for use in
ambient temperatures from 32°F (0°C) to 122°F (50°C).. DesignLights Consortium® (DLC)
qualified product.
Warranty – 5 year limited warranty
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 45 of 63
Approved By: SSST
Shared Services Standards
Size: 16.3" long by 16.3" wide by 14.3" high
26 56 23-
LED Light Fixture, Wall Pack, Exterior Location, Non Corrosive Environment
Lithonia - Model TWH LED Lighting for a non-corrosive environment or JEA approved equal
LED Light Fixture, Exterior Location – The working foremen team has reviewed it as a suitable
upgrade/replacement of conventional lighting systems up to 400W metal halide wall mount,
light fixture. Applications include
Construction - Die-cast aluminum housing has an impact-resistant, tempered glass lens that is
fully gasketed. Modular design allows for ease of maintenance. The LED driver is mounted to the
front casting to thermally isolate it from the light engine for low operating temperature and long life.
Housing is completely sealed against moisture and environmental contaminants
Optics - Protective glass lens covers the light engine’s precision-molded proprietary acrylic
lenses. The light engine shall be a 4000K configuration.
Equivalency - High Pressure Sodium (HPS)
39W LED = 150W HPS
72W LED = 250W HPS
104W LED = 400W HPS
Equivalency – Metal Halide (MH)
39W LED = 70W MH
72W LED = 150W MH
104W LED = 250W MH
Electrical - Light engine(s) consist of 10 or 30 high-efficacy LEDs mounted to a metal-core circuit
board and integral aluminum heat sink to maximize heat dissipation and promote long life
(L87/100,000 hrs at 25°C). The electronic driver has a power factor of >90%, THD <20%, and a
minimum 2.5 KV surge rating.
Installation – Back housing is separated from front housing, eliminating ballast weight and
promoting easy handling. Top 3/4” threaded wiring access. Back access is through a removable
3/4” knockout. Feed-thru wiring can be achieved by using a condulet tee. Mount on any vertical
surface. Not recommended in applications where a sprayed stream of water can come in direct
contact with glass lens.
Listings - UL listed for wet locations. Rated for -40°C minimum ambient. Luminaire is IP55 rated.
DesignLights Consortium® (DLC) qualified product.
Revised: January 26, 2017
Revised By: MDP
DIVISION 26 – ELECTRICAL
Page 46 of 63
Approved By: SSST
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