BS EN 50441-5. Cables for indoor residential telecommunication installations. Part 5. Cables up to 2 200 Mhz for one pair and remaining pairs up to 1 000 Mhz— 17 стр.
Communication cables. Common design rules and construction. Polyethylene insulation compounds for multi element metallic cables for indoor installation (data cable)— 12 стр.
Communication cables -- Part 2-33: Common design rules and construction - Polyethylene insulation compounds for multi element metallic cables for indoor installation (data cable) (english version)