G-GC is een kabelaanduiding volgens NEC / UL (USA): G = Grounded portable power cable (UNVERIFIED); GC = Ground-check conductor (UNVERIFIED); G-GC = Portable power cable with grounding and a ground-check conductor (UNVERIFIED). 2000 V, 90 C (UNVERIFIED). UL 1650; NEC Article 400.