Nortel Networks SONAR P0992639 01 Benutzerhandbuch
40 / Installation
Modular ICS Companion Installer Guide
P0992639 01
Lightning surge arrestor and bracket (USA)
Before you connect the ground lead to the lightning surge
arrestor, attach it to an approved ground.
arrestor, attach it to an approved ground.
Tip -
The recommended wire gauge is 6 AWG. Connect
the ground lead to the building ground. Do not connect to
a ground rod or series of ground rods. If you cannot
connect the ground lead to the building ground, connect
it to the steel frame of the building. The connection
should be no more than 6 to 1 0ft.
a ground rod or series of ground rods. If you cannot
connect the ground lead to the building ground, connect
it to the steel frame of the building. The connection
should be no more than 6 to 1 0ft.
You can also connect the ground lead to the 120 V ac
conduit (which is connected to the building ground), but
this is not a preferred installation.
conduit (which is connected to the building ground), but
this is not a preferred installation.