VFD является маркой кабеля по системе NEC / UL (USA): VFD = Variable frequency drive cable: symmetrical grounds and an overall screen against drive noise; VFD = Variable frequency drive cable, Type TC-ER: three XLPE cores, three symmetrical grounds, overall screen. 1000 V or 2000 V, 90 C wet and dry. UL 1277 TC-ER; NEC Article 336.
Variable frequency drive cable: symmetrical grounds and an overall screen against drive noise
VFD
Variable frequency drive cable, Type TC-ER: three XLPE cores, three symmetrical grounds, overall screen. 1000 V or 2000 V, 90 C wet and dry. UL 1277 TC-ER; NEC Article 336