NR/L3/ELP/27240/NR/D/C26L
Routine Testing of D.C. Frame Leakage Protection - Whipp & Bourne MM74
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| Organization: | NR |
| Publication Date: | 5 December 2020 |
| Status: | active |
| Page Count: | 6 |
scope:
Includes: There are three main generations of the MM74 switchboards. This instruction describes how to test D.C. frame leakage protection installed
on Whipp & Bourne 2nd and 3rd generation. Stage 1 and stage 2 are tested separately however a single test may be undertaken if agreement
is reached with the ECR.
Document History
NR/L3/ELP/27240/NR/D/C26L
December 5, 2020
Routine Testing of D.C. Frame Leakage Protection - Whipp & Bourne MM74
Includes: There are three main generations of the MM74 switchboards. This instruction describes how to test D.C. frame leakage protection installed
on Whipp & Bourne 2nd and 3rd generation. Stage 1...