Lucent Technologies 415B Battery Plant for 4ESS
5 - 2 System Testing
Issue 6 September 1999
– The ac equipment ground is properly connected to each
rectifier.
– The correct ground cable gauge has been used
(minimum #6 for rectifier, #2 for Control and
Distribution Bay).
– The Enhanced Ground Current Monitor has been
properly connected and its alarm contacts have been
connected.
– Each 415B PDSC cabinet is fed from a circuit breaker,
separated both physically and electrically for diversity
(refer to Figure 2-1). Check that both PDSC ac cabinets
are wired for the correct voltage.
– The PDSC ac cabinet has two lists, one to accommodate
208/240 Vac and one to accommodate 480Vac:
208/240
Floor mounted
KS-22089, L4003
208/240
Wall mounted
KS-22089, L4183
480
Floor mounted
KS-22089, L4013
480
Wall mounted
KS-22089, L5183
– The rectifier list number must match the ac input
voltage provided by the ac distribution panels:
List 1 - 208Vac, L310 breaker
List 2 - 240Vac, L310 breaker
List 3 - 480Vac, L606 breaker
– At both PDSC ac cabinets, check that the neutral
conductor of ac input is not connected to the ground
conductor.
– Examine each PDSC and rectifier for loose power
connections and check that correctly-sized cables have
been installed as specified in the job specifications.
– Examine each bay for sharp corners and burrs, and
modify as appropriate.
– Check for conductor clearance within each bay. Pay
special attention inside the rectifier, especially clearance
associated with the high power or high voltage
