Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 1. General requirements
Rectangular iron all-cast moulding boxes having inside dimensions: length from 2400 to 3000 mm, width from 1600 to 2000 mm, height 500; 600 mm. Construction and dimensions
Railway telecommunications. Suspension rules of self-supporting optical waveguide cable on railway contact-line masts and power lines with voltage over 1000 V
