Filter
Top Products
ADCP-80-524 • Issue 1 • November 2001
Page 29
© 2001, ADC Telecommunications, Inc.
4.13 Voltage Designation Label
Write the voltage used in the fuse panel on the voltage designation label (see Figure 9) and
attach the label to the back of the panel.
5 TESTING
5.1 Quality Control
Each unit is thoroughly tested at the ADC factory. The following tests are recommended,
however, to assure that no damage has occurred during shipping or handling. Both bus A and
bus B circuits need to be tested. The tests in Subsection 5.2, Resistance Test and Subsection 5.3,
Wiring Connections Torque Measurements must be performed without power applied to the
fuse panel.
5.2 Resistance Test
Measure the resistance at each bus input connector using a multi meter connected to the BATT
and RTN input terminals. A resistance of at least 500 ohms should be read on the meter (some
meters will indicate a resistance of several Megohms because their input voltage is not high
enough to break down the forward conductance of the diodes used in the alarm circuit). Any
resistance higher than 500 ohms is acceptable.
5.3 Wiring Connections Torque Measurements
Measure the torque of all input, output, and fuse failure alarm relay contact connections
included in the non-powered testing paragraphs above using a torque screwdriver that is
calibrated in pound-force inches or Newton meters. The torque specifications are printed on the
rear of the fuse panel adjacent to each connector.
5.4 Power Indication Test
After checking input resistance and verifying the wiring connections torque, power may be
applied to the fuse panel. Upon power application, the alarm indicators should not light unless
there is a fuse that has failed. The alarm relay contacts should provide an open circuit between the
common (C) terminals and the normally open (NO) terminals and a closed circuit between the
common (C) and normally closed (NC) terminals.
Caution: This equipment employs electrical voltage and amperage levels which may be
considered an electrical hazard. Care should be exercised to assure that only qualified personnel
are allowed to install, operate, maintain, or otherwise come in contact with the fuse panel when
it is energized. Only insulated tools should be used on energized elements of the panel.
Caution: Before performing this test, verify that the input and output power is not applied to the
fuse panel connectors,