Technical data

CORRECTIVE MAINTENANCE
CV ELECTRICAL POWER SYSTEM MAINTENANCE MANUAL 2A5A2-ELEC-MM-1-0 15
9. Read the voltage and confirm acceptable reading.
Table 5 Acceptable High Voltage Readings
Test point Acceptable readings
HPU power Bus #1 or #2
Negative Positive
ØA ØB 3000 ± 300 VAC
ØA ØC 3000 ± 300 VAC
ØB ØC 3000 ± 300 VAC
Hotel power Bus #1 or #2
Negative Positive
ØA ØB 1900 ± 190 VAC
10. In the CV, at the
POWER DISTRIBUTION UNIT, set POWER BUS #1 (2A5A2-1B-EP01-1)
and
POWER BUS #2 (2A5A2-CB-EP01-2) to OFF.
11. At the power demarcation panel, reconnect the cable. For the HPU boost
transformer, reconnect HPU power bus #1 cable (2A5/2A7-CBL-EPO1) or HPU
power bus #2 cable (2A5/2A7-CBL-EPO2). For the hotel boost transformer,
reconnect hotel power bus #1 cable (2A5/2A7-CBL-EPO3) or hotel power bus #2
cable (2A5/2A7-CBL-EPO4).
12. Inspect and determine disposition of any parts removed. If applicable, dispose of
removed parts and/or fluids in accordance with local requirements.
13. Ensure the preceding steps were performed in accordance with local
requirements for SOC and tag in/out, as applicable.
0.