Installation
150-458-100-05
14
February 23, 2000
HRE-458 List 1, List 1B, and List 2
Figure 6.
Grounding for Flat Surface-Mounted Unit
is met, proceed to
. Otherwise, follow local practices to lower the
resistance to ground to comply with the requirement in
before proceeding to
.
3
Use 6 AWG cable to connect the ground lug on the HRE-458 to the ground connection in the manhole. Torque
the grounding lug between 18 and 22 inch-pounds.
4
Use a 6 AWG cable to connect the main cable shield to the ground connection in the manhole.
5
Use a megger-type Ohmmeter to measure the main cable shield resistance to manhole ground. The resistance
must be 5
Ω
or less.
6
is not met, ground the main cable shield every 2,000 feet.
HRE-458
No. 6 gauge wire
Grounding
lug
No. 6 gauge wire
Bullet bond
Field side
CO side
Splice case
Stub