FieldSmart
®
Fiber Active Cabinet (FAC) 400
Installation Manual
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Proprietary Information: Not for use or disclosure except by written agreement with Clearfield.
84
Turning Up the Power System
This section describes how to turn up and test the power system for locally-powered AC cabinets. The process includes
checking the cabinet ground connection, checking the AC power supply voltage, installing batteries for reserve power,
and turning up and testing the DC power system.
Topics Covered
This chapter covers the following topics:
• Checking the cabinet ground connection
• Checking the AC power supply voltage
•
Installing rectifier modules into the Rectifier shelf
• Installing batteries for reserve power
• Turning up and testing the DC power system
Checking the Ground Connection
Check the impedance of the cabinet ground connection before turning up the cabinet power system.
Note:
The following procedure does not test the quality of the earth ground circuit (earth electrode), which should have been
installed and tested before the cabinet was installed.
To check the cabinet ground connection
Using an ohm meter, test between the main ground bar and the earth ground wire:
a.
Place one lead on the main cabinet ground bar.
b.
Place the other lead on the earth ground wire.
Verify that the ohm meter reads 5 ohms or less.
If the reading is greater than 5 ohms, check the ground wire connection at the main ground bar, then retest.
Step 1:
Step 2:
Step 3: