TYPE W este o simbolizare de cablu conform NEC / UL (USA): W = Portable power cable type W (weather and water resistant); TYPE W = Portable power cable, 2 kV, tinned copper, EPDM insulation, extra-hard usage. 2000 V, 90 C. UL Subject 1680; CSA C22.2 No. 96; NEC Article 400 (also 520, 525, 530).
3 sisteme de codificare recunosc această simbolizare