eriri concentric
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ASTM/ICEA-S-95-658 Ọla kọpa concentric USB
Copper Core Concentric Cable bụ nke otu ma ọ bụ abụọ na-eduzi etiti siri ike ma ọ bụ ọla kọpa dị nro, nke nwere mkpuchi PVC ma ọ bụ XLPE, onye na-eduzi mpụta nke nwere ọtụtụ waya ọla kọpa dị nro nke gbachiri n'ọbọ dị okirikiri na oji nke enwere ike iji PVC, polyethylene thermoplastic. ma ọ bụ XLPE.
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SANS 1507 SNE Concentric USB
A na-eji eriri ndị a eme ihe maka inye ọkụ na sistemu nchekwa Multiple Earthing (PME), ebe njikọta nchebe ụwa (PE) na Neutral (N) - nke a maara dị ka PEN - na-ejikọ ọnụ na-anọpụ iche na ụwa na ezigbo ụwa n'ọtụtụ ebe. iji belata ihe egwu ọkụ eletrik ma ọ bụrụ na agbajiri PEN.
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SANS 1507 CNE Concentric USB
Onye na-eduzi usoro ọla kọpa siri ike gbachiri okirikiri, XLPE ejiri ndị nduzi ụwa na-ahaziri nke ọma.Polyethylene sheathed 600/1000V ụlọ njikọ USB.Naịlọn ripcord tọrọ n'okpuru n'ọbọ.Emepụtara ya na SANS 1507-6.
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ASTM/ICEA-S-95-658 Ọkọlọtọ Aluminom Concentric USB
Enwere ike iji ụdị onye nduzi a na ebe akọrọ na mmiri mmiri, lie ya ozugbo ma ọ bụ n'èzí;Ya kacha okpomọkụ nke ọrụ bụ 90 ºC na voltaji nke ọrụ maka ngwa niile bụ 600V.