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Installation guidelines
AN2016 Cabinet User Guide Rel 1.0 Standard May 1999
Procedure 3-10
Installing the surge arrestor
Use this procedure to install the secondary surge arrestor to the AC load center
in the AN2016 Cabinet. Install the surge arrestor to the AC load center in the
following conditions only:
• when no UL Listed/CSA Certified surge arrestor is installed in the power
pedestal
• when the power pedestal is more than five feet away from the cabinet.
For an illustration of the surge arrestor and the AC wiring diagram, see
Figure 3-21 and Figure 3-23.
Action
Step Action
1
Have a qualified person with training in the operation and maintenance of
electrical power systems install the surge arrestor.
2
Make sure the electrical system is grounded in accordance with article 250 of
the national electrical code (NEC).
3
Turn off all power to the electrical equipment where the secondary surge
arrestor will be installed.
4
Install the surge arrestor to the AC load center as outlined in the following
steps.
5
Open the AC compartment door.
—continued—
CAUTION
System ground
The electrical system must be correctly grounded for the
secondary surge arrestor to work properly (see Figure 3-5).
CAUTION
Insulation resistance or dielectric strength tests are invalid
when a secondary AC surge arrestor is connected.
Turn main breaker off and disconnect the secondary AC
surge arrestor before conducting these tests.
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