[18] [24] inches deep], [[150] [_____] mm[6] [_____] inches wide]
[width as indicated].
c.
Lifting anodes: Do not lift or support anode by the lead wire.
Exercise care to preclude damaging the anode and the lead wire
insulation.
d.
Installing anodes: [Place 305 mm 12 inches of coke breeze in the
hole and tamp well. Center the anode in the hole and place 305 mm
12 inches of additional coke breeze and tamp well taking care not
to strike and damage the anode lead wire. Repeat sequence until
coke breeze is 305 mm 12 inches above the anode.] [Center the
canister anode in the hole. Completely fill the annular space
between the canister and the wall of the hole with a slurry of
stone free earth.] [Place a vent pipe vertically above the anode.
Cut the pipe to sufficient length to extend from 75 mm 3 inches
within the coke breeze to 75 mm 3 inches below finish grade.
Place gravel around the vent pipe to a level 150 mm 6 inches below
finish grade.] Fill the remaining excavation with soil and tamp.
e.
Installing lead wires: Provide anodes with lead wires of
sufficient length to extend to the anode junction box without
splicing. Cover the lead [and main feeder] wire trench bottom
with a 75 mm 3 inch layer of sand or stone free earth. Center
wire on the backfill layer. Handle to eliminate damage to the
cable and insulation, do not stretch or kink the conductor. Place
backfill over wire in layers not exceeding 150 mm 6 inches deep,
compact each layer thoroughly. Do not place tree roots, wood
scrap, vegetable matter and refuse in the backfill.
**************************************************************************
NOTE: Splices and damaged anode lead wire
insulation are a common cause of premature failure.
Splices are not normally allowed except under
certain circumstances. If splices are allowed,
select the "Anode lead to main feeder connections"
option.
**************************************************************************
f.
Splices not allowed: Splices, or repairs to damaged anode lead
wire insulation are not allowed. Install anode lead wires back to
the anode junction box as indicated in the drawings. [Anode lead
to main feeder connections: Make connections as follows:
**************************************************************************
NOTE: Choose one of the following options.
**************************************************************************
[(1) Remove insulation to expose approximately 50 mm 2 inches of
each conductor.
(2) Make connection between conductors using solderless crimp
connector or exothermic weld.
(3) Cover connection with uncured butyl rubber tape to provide
filler wrap.
(4) Apply four layers of half-lapped neoprene tape, extend the
tape over the cable insulation.
SECTION 13111N
Page 22
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