RITZ SIS BUS BAR SYSTEMS, Руководство по установке

Страница: 96 / 130

INSTALLATION
Installation Instructions for SIS Bus Bar Systems A2MS001EN revision R05 96 / 130
If an AC power frequency voltage test is performed,
make sure a high performance test transformer is
available due to the high capacity of the bars.
The capacities of the individual bars are shown in the
routine test reports. The required transformer power
can be calculated accordingly. The required
transformer power can be significantly decreased by
performing a very low frequency (0.1 Hz) test instead
of a power frequency test. It is recommended to
perform a high-voltage test as per the valid standard.
Because it is a repeated test, only perform this test at
85 % of the standard AC power frequency test voltage.
4.10.2.2 PERFORMING AN AC OR
VLF VOLTAGE TEST
Personnel:

Qualified Electrician
Protective Equipment:

Safety Goggles
  
Protective Gloves
  
Safety Footwear
Special Tools:

Test devices

Barrier!
Duration of AC test: 1 minute at rated frequency (50 or
60 Hz)
Duration of VLF* test:
≤ 15 min. at 0.1 Hz
*VLF = very low frequency
Perform AC voltage test as per the valid standard.
Test voltages see Appendix C on page 111.
4.10.2.3 PERFORMING A DC
VOLTAGE TEST
Personnel:

Qualified Electrician
Protective Equipment:

Safety Goggles
  
Protective Gloves
  
Safety Footwear
Special Tools:

Test devices

Barrier!
Duration of DC test: ≤ 15 min.