Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods— 111 стр.
BS 6037-1. Planning, design, installation and use of permanently installed access equipment. Code of practice. Part 1. Suspended access equipment— 37 стр.
Low-voltage surge protective devices. Surge protective devices for specific application including d.c. Selection and application principles. SPDs connected to photovoltaic installations— 38 стр.
Fire and explosion precautions at premises handling flammable gases, liquids and dusts, Code of practice for precautions against fire and explosion in chemical plants, chemical storage and similar premises— 74 стр.