hat
GB3906: altènatif-aktyèl metal-ki fèmen gazeuz ak apareyaj pou rated tension pi wo a 3.6kV epi jiska epi ki gen ladan 40.5kV
eng
GB3906:Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6kV and up to and including 40.5kV