Question
To what surge voltage (core to earth) is the basic immunity of bus devices tested (IEC 63044-3)?
Answer
B — 2 kV.
Correct: basic immunity is tested with a 2 kV surge core to earth.
Source
KNX Basic Course Documentation — 14 — p. 115
All proposed choices (exam context)
- A.4 kV.
- B.2 kV.✓
- C.600 V.
- D.350 V.
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