Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Part 7. Phase sequence
Rectangular all-cast moulding boxes of aluminium and magnesium alloys having inside dimensions: length 800; 900 mm, width from 500 to 700 mm, height 150; 200 mm. Construction
€10
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