wire trenches to [the depth indicated] [not less than [455] [610]
mm [18] [24] inches deep], [[150] [_____] mm[16] [_____] inches
wide] [width as indicated].
c.
Installing anodes. Do not lift or support anode by the lead wire.
Exercise care to preclude damaging the anode and the lead wire
insulation. Attach the anode centralizers to the anodes. [Place
the vent pipe in the hole as indicated prior to installing the
anodes. Install the anodes in the hole at the depths indicated
and supported in place using a method that does not suspend the
anodes by the lead wire.] [Strap the [anodes] [anode assembly] to
the vent pipe spaced as indicated on the drawings. Lower the
anode/vent pipe assembly into the hole.] [Label and coil the
excess anode lead wire at the top of the casing].
d.
Coke backfill. Pump the coke back fill into the hole through a
separate removable tube with the tip at the bottom of the hole.
Pumping operations shall be continuous. Maintain a continuous
supply of fluidized coke at the pump suction until coke is filled
to the top of the hole.
Allow the coke to settle for [24]
[_____] hours. Verify the level of coke and provide additional as
necessary until the level of coke is not lower than that indicated
in the drawings.
e.
[Casing. Install well head casing as indicated. Seal the annular
space between the casing and earth with cement grout. Seal the
top of the anode well as shown on the drawings.]
f.
Anode well access box. Place the anode well access box around the
top of the casing, and pour the concrete slab around the box as
indicated.
g.
Anode junction box. Install anode junction box as shown in the
drawings [prior to pouring the concrete slab].
h.
Installing lead wires. Provide anodes with lead wires of
sufficient length to extend to the anode junction box without
splicing. Splices, or repairs to damaged anode lead wire
insulation are not allowed. Mark each of the wires terminating in
the junction box. Connect anode lead wires to the appropriate
terminals in the anode junction box.
i.
Anode header cable. Provide anodes header cable of sufficient
length to extend to the anode junction box without splicing.
Splices, or repairs to damaged anode header cable wire insulation
are not allowed. Cover the anode header cable trench bottom with a
75 mm 3 inch layer of sand or stone free earth. Center wire on
the backfill layer. Handle cable to prevent 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. Connect the
anode header cable to the appropriate terminal in the anode
junction box.
]3.1.2
Wire-To-Structure Connections
Connect wire to [pipe] [tank] structure [_____] [by use of a exothermic
weld kit] [by brazing]. Clean the structure surface by scraping, filing or
SECTION 13111N
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