Page 576 - Corrosion Engineering Principles and Practice

538 C h a p t e r 1 3 C a t h o d i c P r o t e c t i o n 539

Insulated header cable to
power source and other
grounded anodes
Insulated connection between Tamped earth fill
cable and anode pigtail wire

1.2 M

Insulated pigtail
wire provided
with anode

Anode centered in cross Anode: high silicon cast
sectional fill of tamped iron or graphite
carbonaceous backfill

FIGURE 13.13 Typical horizontal impressed current anode installation.

Insulated header cable to
power source and other
grounded anodes Insulated connection between
cable and anode pigtail wire
Tamped earth

Insulated pigtail wire
provided with anode
Anode length
+ 1.5 M

Anode: High silicon cast
iron or graphite
Well tamped carbonaceous
material in augered hole
with anode and backfill
FIGURE 13.14 Typical vertical impressed current anode installation.