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USACE / NAVFAC / AFCEC / NASA
UFGS-26 55 80.00 20 (April 2006)
-------------------------------Preparing Activity: NAVFAC
Replacing without change
UFGS-16553N (Septermber 1999)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION TABLE OF CONTENTS
DIVISION 26 - ELECTRICAL
SECTION 26 55 80.00 20
SURGICAL LIGHTING FIXTURES
04/06
PART 1
GENERAL
1.1
REFERENCES
1.2
RELATED REQUIREMENTS
1.3
DESIGN REQUIREMENTS
1.3.1
Lighthead Illumination Level
1.3.2
Color Temperature
1.3.3
Shadow Reduction
1.3.4
Beam Temperature
1.3.5
Pattern Size
1.3.6
Current Leakage
1.4
SUBMITTALS
1.5
QUALITY ASSURANCE
1.5.1
Installation drawings
1.6
DELIVERY, STORAGE, AND HANDLING
PART 2
PRODUCTS
2.1
LIGHT FIXTURES
2.1.1
One Lighthead
2.1.2
Two Lightheads
2.1.3
Track Mounted Light Fixtures
2.1.3.1
Light Ceiling Tracks
2.1.3.2
[One] [and] [Two] Lighthead[s]
2.1.3.3
Fixture on Two Parallel Tracks
2.1.3.4
Fixture on Single Lighthead Track
2.1.4
Components
2.1.5
Electrical Characteristics
2.1.6
Lamp
2.1.7
Suspension Systems
2.1.8
Movement Limits
2.2
CONTROLS
2.3
SURGICAL LIGHT TRANSFORMER
PART 3
EXECUTION
SECTION 26 55 80.00 20
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3.1
INSTALLATION
3.1.1
Wiring Methods
3.1.1.1
Outlet Box
3.1.2
Surgical Light Transformer
3.2
FIELD QUALITY CONTROL
3.2.1
Inspection
3.2.2
Tests
-- End of Section Table of Contents --
SECTION 26 55 80.00 20
Page 2
**************************************************************************
USACE / NAVFAC / AFCEC / NASA
UFGS-26 55 80.00 20 (April 2006)
-------------------------------Preparing Activity: NAVFAC
Replacing without change
UFGS-16553N (Septermber 1999)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2016
**************************************************************************
SECTION 26 55 80.00 20
SURGICAL LIGHTING FIXTURES
04/06
**************************************************************************
NOTE: This guide specification covers the
requirements for surgical lighting fixtures and
similar related specialities.
Adhere to UFC 1-300-02 Unified Facilities Guide
Specifications (UFGS) Format Standard when editing
this guide specification or preparing new project
specification sections. Edit this guide
specification for project specific requirements by
adding, deleting, or revising text. For bracketed
items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in
respective project, whether or not brackets are
present.
Comments, suggestions and recommended changes for
this guide specification are welcome and should be
submitted as a Criteria Change Request (CCR).
**************************************************************************
**************************************************************************
NOTE: This guide specification shall be used in
conjunction with additional design guidance supplied
for that particular project.
**************************************************************************
**************************************************************************
NOTE: The following information shall be shown on
the project drawings:
1.
Lighting fixture schedule.
2. Lighting fixture wiring diagram.
**************************************************************************
SECTION 26 55 80.00 20
Page 3
PART 1
1.1
GENERAL
REFERENCES
**************************************************************************
NOTE: This paragraph is used to list the
publications cited in the text of the guide
specification. The publications are referred to in
the text by basic designation only and listed in
this paragraph by organization, designation, date,
and title.
Use the Reference Wizard's Check Reference feature
when you add a RID outside of the Section's
Reference Article to automatically place the
reference in the Reference Article. Also use the
Reference Wizard's Check Reference feature to update
the issue dates.
References not used in the text will automatically
be deleted from this section of the project
specification when you choose to reconcile
references in the publish print process.
**************************************************************************
The publications listed below form a part of this specification to the
extent referenced. The publications are referred to within the text by the
basic designation only.
ASTM INTERNATIONAL (ASTM)
ASTM E308
(2015) Computing the Colors of Objects by
Using the CIE System
NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)
NEMA ST 20
(1992; R 1997) Standard for Dry-Type
Transformers for General Applications
NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)
NFPA 70
(2014; AMD 1 2013; Errata 1 2013; AMD 2
2013; Errata 2 2013; AMD 3 2014; Errata
3-4 2014; AMD 4-6 2014) National
Electrical Code
UNDERWRITERS LABORATORIES (UL)
UL 544
1.2
(1998; R 1999) Standard for Medical and
Dental Equipment
RELATED REQUIREMENTS
Section 11 70 00 GENERAL REQUIREMENTS FOR MEDICAL AND DENTAL EQUIPMENT,
Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS, Section
26 20 00 INTERIOR DISTRIBUTION SYSTEM, apply to this section with the
additions and modifications specified herein.
SECTION 26 55 80.00 20
Page 4
1.3
1.3.1
DESIGN REQUIREMENTS
Lighthead Illumination Level
Lighthead shall produce a minimum of [80,000 lux] [7440 footcandles]
[_____] of illumination when measured at 1070 mm 42 inches from the face of
the light.
1.3.2
Color Temperature
Correlated color of the lightbeam shall be between 3,500 degrees and 6,700
degrees Kelvin after filtration, as measured on the ASTM E308 chromaticity
diagram.
1.3.3
Shadow Reduction
Lighting system shall provide a minimum level of 10 percent of the
unshadowed level when measured inside and at the bottom of a tube 50 mm 2
inch in diameter, and 76 mm 3 inch long, from a distance of 1070 mm 42
inches when the beam is obstructed by a disk 254 mm 10 inch in diameter,
580 mm 23 inches above the operating table, and normal to the axis of the
tube. Paint inside of tube with flat black.
1.3.4
Beam Temperature
Radiant heat energy in the light beam 1070 mm 42 inches below the lighthead
shall not exceed 25,000 microwatts per square centimeter at maximum
intensity in the light pattern.
1.3.5
Pattern Size
Smallest pattern size in the focal range shall be a minimum of 150 mm 6
inches. Pattern size shall be adjustable by either raising and lowering
the unit or through operation of a focus control which changes the pattern
size without movement of the unit.
1.3.6
Current Leakage
A maximum of 0.1 milliampere, as measured between the metal parts and
ground.
1.4
SUBMITTALS
**************************************************************************
NOTE: Review Submittal Description (SD) definitions
in Section 01 33 00 SUBMITTAL PROCEDURES and edit
the following list to reflect only the submittals
required for the project.
The Guide Specification technical editors have
designated those items that require Government
approval, due to their complexity or criticality,
with a "G". Generally, other submittal items can be
reviewed by the Contractor's Quality Control
System.
Only add a “G” to an item, if the
submittal is sufficiently important or complex in
context of the project.
For submittals requiring Government approval on Army
SECTION 26 55 80.00 20
Page 5
MAINTENANCE DATA.
1.5
QUALITY ASSURANCE
1.5.1
Installation drawings
Submit shop drawing for each specified lighting fixture to include the
following:
a.
Mounting detail for the lighting fixture[, transformer and control]
assembly.
b.
Wiring diagrams indicating the internal wiring for each item of
equipment, the interconnections between the items of equipment and
connections to normal and emergency power in the building.
Manufacturer's catalog data may be submitted for internal wiring
description.
1.6
DELIVERY, STORAGE, AND HANDLING
Package each lighting fixture and protect in accordance with the
manufacturer's instructions.
PART 2
2.1
PRODUCTS
LIGHT FIXTURES
2.1.1
One Lighthead
One lighthead, ceiling mounted on a single extension arm assembly.
Lighthead shall rotate within a clearance circle of 4720 mm 15 1/2 feet and
the lighthead center describes a circle 3810 mm 12 1/2 feet when fully
extended. Center of lighthead adjustable vertically from 1190 mm 3 feet 11
inches to 2250 mm 7 feet 4 1/2 inches above the floor.
2.1.2
Two Lightheads
Two lightheads, ceiling mounted on a dual extension arm assembly. One
lighthead mounted on the shorter arm and the other lighthead mounted on the
longer arm to enable the outer lighthead to pass by the inner lighthead
without interference. Outer lighthead shall rotate within a clearance
circle of 4720 mm 15 1/2 feet and the lighthead center describes a circle
3810 mm 12 1/2 feet when fully extended. Center of the lighthead shall be
adjustable vertically from 1190 mm 3 feet 11 inches to 2250 mm 7 feet 4 1/2
inches above the floor.
2.1.3
Track Mounted Light Fixtures
[Single-track system with one or more lightheads] [or] [dual-track system
with one or more lightheads] per track. Lightheads are suspended from a
carriage which rides in track [or tracks] mounted in the ceiling. Steel
suspension tube shall have sufficient length for cutting to the proper
length at installation.
2.1.3.1
Light Ceiling Tracks
Ceiling tracks shall have end closures finished to match the fixture and
shall have an opening in bottom a maximum of 50 mm 2 inches wide extending
the entire length of track to receive the part of the carriage that moves
SECTION 26 55 80.00 20
Page 7
MAINTENANCE DATA.
1.5
QUALITY ASSURANCE
1.5.1
Installation drawings
Submit shop drawing for each specified lighting fixture to include the
following:
a.
Mounting detail for the lighting fixture[, transformer and control]
assembly.
b.
Wiring diagrams indicating the internal wiring for each item of
equipment, the interconnections between the items of equipment and
connections to normal and emergency power in the building.
Manufacturer's catalog data may be submitted for internal wiring
description.
1.6
DELIVERY, STORAGE, AND HANDLING
Package each lighting fixture and protect in accordance with the
manufacturer's instructions.
PART 2
2.1
PRODUCTS
LIGHT FIXTURES
2.1.1
One Lighthead
One lighthead, ceiling mounted on a single extension arm assembly.
Lighthead shall rotate within a clearance circle of 4720 mm 15 1/2 feet and
the lighthead center describes a circle 3810 mm 12 1/2 feet when fully
extended. Center of lighthead adjustable vertically from 1190 mm 3 feet 11
inches to 2250 mm 7 feet 4 1/2 inches above the floor.
2.1.2
Two Lightheads
Two lightheads, ceiling mounted on a dual extension arm assembly. One
lighthead mounted on the shorter arm and the other lighthead mounted on the
longer arm to enable the outer lighthead to pass by the inner lighthead
without interference. Outer lighthead shall rotate within a clearance
circle of 4720 mm 15 1/2 feet and the lighthead center describes a circle
3810 mm 12 1/2 feet when fully extended. Center of the lighthead shall be
adjustable vertically from 1190 mm 3 feet 11 inches to 2250 mm 7 feet 4 1/2
inches above the floor.
2.1.3
Track Mounted Light Fixtures
[Single-track system with one or more lightheads] [or] [dual-track system
with one or more lightheads] per track. Lightheads are suspended from a
carriage which rides in track [or tracks] mounted in the ceiling. Steel
suspension tube shall have sufficient length for cutting to the proper
length at installation.
2.1.3.1
Light Ceiling Tracks
Ceiling tracks shall have end closures finished to match the fixture and
shall have an opening in bottom a maximum of 50 mm 2 inches wide extending
the entire length of track to receive the part of the carriage that moves
SECTION 26 55 80.00 20
Page 7
inside the track. Provide each track with insulated duct enclosing two
copper bus bars, and a grounding path. Provide tracks with all the
necessary components for mounting, and provide for sliding, nonsparking
electrical contacts and current-conducting components within the track.
2.1.3.2
[One] [and] [Two] Lighthead[s]
Lighthead shall rotate within a clearance circle of 2800 mm 9 feet 2 inches
and the lighthead center describes a circle 1900 mm 3 feet when fully
extended. Lighthead center shall be adjustable vertically from 1200 mm 3
feet 11 inches to 2200 mm 7 feet 2 inches above the floor.
2.1.3.3
Fixture on Two Parallel Tracks
Two lightheads; twin track mounted; including two parallel, 2745 mm 9 foot
long, surface-mounted fixed tracks, each with a lighthead and carriage.
2.1.3.4
Fixture on Single Lighthead Track
Single lighthead; short track mounted; including a 1370 mm 54 inch long,
surface-mounted fixed track with a lighthead, and carriage.
2.1.4
Components
UL 544; The surgical lighting fixtures shall be specifically design for
use in surgical operating rooms.
2.1.5
Electrical Characteristics
120 volts, 60 Hz, single-phase, three-wire grounded circuits.
2.1.6
Lamp
[Quartz halogen] [_____] enclosed by heat-absorbing filter. Lamp shall be
color corrected and heat filtered and shall have a minimum lifespan of 500
hours. Furnish one spare lamp with each lighthead.
2.1.7
Suspension Systems
Mount each lighthead on a counterbalanced arm that can rotate 6.28 rad 360
degrees horizontally and can provide both vertical and horizontal
adjustments. Fixture shall be controllable from both inside and outside
the sterile field and shall move in a free, smooth, and silent manner
throughout its range of maneuverability without drifting, regardless of
position. [In systems with multiple arms attached to the same mount, each
individual arm and lighthead shall operate independently and shall be
mounted so that each individual arm and lighthead can be positioned outside
the sterile area, can bypass each other and be raised, and can be lowered
and rotated.]
2.1.8
[Movement Limits
**************************************************************************
NOTE: Include this paragraph where flammable
anesthestics are used.
**************************************************************************
Provide lighthead with stops which shall prevent surgical light from being
lowered less than 1520 mm 5 feet above the finished floor.
SECTION 26 55 80.00 20
Page 8
]2.2
CONTROLS
**************************************************************************
NOTE: Designer should coordinate with User for the
number of controllers required and indicate this
information on the drawing.
**************************************************************************
[Recessed] [or] [Surfaced] mounted. Include circuit breaker, an on/off
switch located outside the sterile field, and a pilot light. Controls
shall have a continuously variable intensity control range from the maximum
lux footcandle rating of the lighting fixture to a minimum of 60 percent of
the maximum lux footcandle rating of the lighting fixture. Include a radio
frequency suppressor. Provide time-of-use meter to determine when to
replace the lamp. Provide control units with electrical plug connections
designed to allow eased of service or replacement.
2.3
SURGICAL LIGHT TRANSFORMER
NEMA ST 20, [_____] VA, 120 V, 60 Hz primary, 22.8 V - 24 V, 60 Hz
secondary.
PART 3
3.1
EXECUTION
INSTALLATION
Section 11 70 00 GENERAL REQUIREMENTS FOR MEDICAL AND DENTAL EQUIPMENT, and
NFPA 70. Install lighthead in accordance with the approved installation
drawings and submit installation report for each lighthead.
3.1.1
Wiring Methods
Provide conduit and wiring in accordance with Section 26 20 00 INTERIOR
DISTRIBUTION SYSTEM.
3.1.1.1
[Outlet Box
**************************************************************************
NOTE: Delete this paragraph if lighthead intensity
control is surface mounted.
**************************************************************************
Provide three-gang outlet box 75 mm 3 inches depth for recessed mounted
intensity control. Install box 1525 mm 5 feet from finished floor to
center line of box.
]3.1.2
Surgical Light Transformer
**************************************************************************
NOTE: Locate transformer so that the maximum length
of wires shall not exceed 9144 mm 30 feet from
transformer to the lighthead.
**************************************************************************
Provide [mounting bracket] [seismic anchoring] for the transformer. Mount
transformer on the [ceiling] [wall, 1525 mm 5 feet, minimum, from finished
floor].
SECTION 26 55 80.00 20
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3.2
3.2.1
FIELD QUALITY CONTROL
Inspection
Examine each item visually for conformance to the requirements of this
section.
3.2.2
Tests
Upon completion of installation, conduct an operating test to demonstrate
that each surgical lighting fixture meets the requirements of this section.
-- End of Section --
SECTION 26 55 80.00 20
Page 10
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