6-Anode Sled - Anotec Industries Ltd.

13 • 20
Product Description
Six, heavy high silicon cast iron (HSCI) anodes, each 315 lb / 140 kg, are securely mounted
on a corrosion resistant frame (sled). The sled weighs approximately 2,000 kg (4,410 lb),
depending upon the size and length of shore lead cable. The footprint is nominally 2.1 m x
2.0 m x 0.6 m (7 ft x 6.5 ft x 2 ft).
Application Information
The anodes are spaced for uniform current discharge and consumption. Although HSCI in
sea water can withstand current discharge amperages exceeding 5 Amps/sq. ft.
(55 Amps/sq. m), the following factors should be considered.
•Environmental regulations may restrict sled discharge current to lower values. (i.e. less
than 1 Volt/meter electric field strength in natural waters).
•Sled life will depend upon the weight of anodes (1,890 lb), the discharge amperage, their
consumption rate, and utilization efficiency (85%).
The following figure illustrates the estimated sled life versus discgarge amperage for
different consumptions rates.
6-­‐Anode Sled Life vs. Discharge Amperage (4884 SZ Anodes, Assuming 85% UDlizaDon) 35 30 25 Life (years) 1 6 - M AY - 2 0 1 3
20 15 10 5 0 60 70 80 90 100 110 120 130 Discharge Amperage (A) 0.75 lb/Amp-­‐Year 1.00 lb/Amp-­‐Year 1.25 lb/Amp-­‐Year 1.50 lb/Amp-­‐Year F O R A D D I T I O N A L I N F O R M AT I O N , V I S I T W W W. A N O T E C . C O M
140 Sled Construction
Each 4884 SZ anode has a single #8 Halar / Kynar HMWPE cable lead connected to a shorebased rectifier (not included) by means of two, parallel insulated cables (usually, but not
limited to #6, #4 or #2 HMWPE 600V) protected by heavy wall EPDM rubber hose. Length
permitting, dual cables of #2 or smaller may be protected by a single hose.
Each anode lead exits from the side of the anode 400 mm (16”) from the center connection.
The lead wire is protected by a sleeve of rubber hose at the hole in the anode wall. The
interior of the anode is encapsulated with epoxy for 460 mm (18”), covering the anode-lead.
The on-sled junction between anode leads and shore leads utilizes high strength ground
connectors (copper), sealed and protected by epoxy. The epoxy mass is encased in a
fibreglass-reinforced pipe. The shore lead cables and protection hose(s) are securely
encased in concrete in the Sled Frame before terminating in the on-sled junction.
The sled frame consists of two, 12” (300 mm), 78” (2000 mm) long PVC pipes filled with
reinforced concrete. The pipes are connected together by three, 4” (100 mm) fiberglassreinforced pipes filled with reinforced concrete.
The sled frame includes 4 lifting eyes and 12 anode clamps manufactured from steel U-bolts,
cover protected by a heat shrink sleeve and a 1” EPDM rubber hose jacket. The U-bolts are
cast into concrete.
A name plate secured into concrete lists Anotec and the sled serial number and date of
manufacture. Customer project “information” is optional.
Industries Ltd.
5701 Production Way
Langley, BC, Canada
V3A 4N5
604.514.1544 (Phone)
604.514.1546 (Fax)