TWH est une désignation de câble CSA (Canada) : T = Thermoplastic insulation (UNVERIFIED); W = Wet locations (UNVERIFIED); H = Heat resistant (UNVERIFIED); TWH = Thermoplastic 600 V wire used as an insulated ground conductor (UNVERIFIED). 600 V. not stated.
7 systèmes de codification reconnaissent cette désignation