ADC PowerWorx Power Distribution Products - Manual (Page 28)

ADCP-80-545 • Issue 3 • March 2006
Page 22
© 2006, ADC Telecommunications, Inc.
Figure 16. Circuit Designation Card and Voltage Label
4 TESTING
Following installation, perform the following tests to verify that the Select Series circuit breaker
panel is correctly wired and that the alarm system is functioning properly.
4.1 Power and Alarm Indication Test
Place all circuit breakers in the OFF position and then turn on the power (both sources) to the
circuit breaker panel. With the power turned on and all circuit breakers turned off, the POWER-
A and POWER-B indicators should light and the BREAKER ALARM-A and BREAKER
ALARM-B indicators should light.
4.2 Connection Polarity Test
Verify that the input power cables are connected to the correct terminals. Using a multimeter
that is set to measure DC voltage, measure the voltage between the A and B input power RTN
terminals and chassis ground. The voltage level should be less than 2.0 Vdc. If the voltage is
more than 2.0 Vdc, disconnect the power from the panel and reverse the input power wires.
Reconnect the power and again measure the voltage between the input RTN terminal and the
chassis ground. Verify that the voltage level is less than 2.0 Vdc.
4.3 Alarm Contacts Test
Verify that the alarm contacts are functioning properly. With power applied and all circuit
breakers in the OFF position, the alarm contacts should be in the alarm state. Using a multimeter
that is set to test for continuity, connect the probes alternately between the C and NC terminals
and the C and NO terminals for both sets of alarm terminals. Verify that no continuity exists
between the C and NC terminals and that continuity does exist between the C and NO terminals.
Warning: The circuit breaker panel uses electrical voltage and current levels that may be
considered an electrical hazard per GR-1089. Only qualified personnel should be allowed to
install, operate, maintain, or otherwise come into contact with this equipment when energized.
Only insulated tools should be used on energized elements of the panel.
17949-A
DESIGNATION CARD
AND CARD HOLDER
VOLTAGE LABEL