Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Part 2. Insulation resistance
Rectangular steel all-cast moulding boxes having inside dimensions: length from 400 to 500 mm, width from 300 to 400 mm, height from 100 to 200 mm. Construction and dimensions
