1753326
Description
Flashcards by Oliver Balay, updated more than 1 year ago
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Created by Oliver Balay
about 10 years ago
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| Question | Answer |
| Polarity (Live) | Voltage Indicator and a proving unit (or known live source) will be used to check polarity of supply (live) |
| Earth Fault Loop Impedance (Zs) |
Earth Fault Loop Impedance tester
Low Ohm
Note: External earth fault loop Impedance (Ze) is measured through an ELFI tester too.
Image:
ELFI_Tester (image/jpg)
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| Prospective Fault Current |
Prospective Fault Current Tester
Unit: kA
Note: an ELFI testeter is not the technical name of the instrument for this test.
Image:
PFC_tester_Fluke (image/jpg)
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| RCD |
RCD Tester
Unit: ms (milli-seconds)
Range: 1/2, 1, 5 times the rating of the RCD
Test: 0 and 180 degrees
Image:
RCD_tester (image/jpg)
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| Functional Testing |
Switches and isolators will need to be functionally checked to confirm it is operational.
RCD Test button (T) will need to checked quarterly (3 months).
Image:
RCD_Test_button (image/jpg)
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