Concentric Cable
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SANS 1507 SNE Concentric Cable
Awọn kebulu wọnyi ni a lo fun awọn ipese agbara pẹlu awọn ọna ṣiṣe Aabo Multiple Earthing (PME), nibiti Ilẹ-aabo Aabo Aabo (PE) ati Neutral (N) - papọ mọ bi PEN - so pọ eedu-ati-aiye si aye gidi ni awọn ipo pupọ lati dinku eewu ti mọnamọna ina ni iṣẹlẹ ti PEN ti o fọ.
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SANS 1507 CNE Concentric USB
Iyipo ti idaamu lile-ya Ejò alakoso adaorin, XLPE idabobo pẹlu concentrically idayatọ igboro aiye conductors. Polyethylene sheathed 600/1000V ile asopọ USB. Nylon ripcord gbe labẹ apofẹlẹfẹlẹ. Ti ṣelọpọ si SANS 1507-6.
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ASTM/ICEA-S-95-658 Standard Aluminiomu Concentric Cable
Iru adaorin yii le ṣee lo ni awọn aaye gbigbẹ ati tutu, taara sin tabi ni ita; Iwọn otutu iṣẹ rẹ ti o pọju jẹ 90ºC ati foliteji iṣẹ fun gbogbo awọn ohun elo jẹ 600V.
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ASTM/ICEA-S-95-658 Standard Ejò concentric USB
Ejò mojuto Concentric Cable jẹ ti ọkan tabi meji ri to aringbungbun conductors tabi ti idaamu bàbà asọ, pẹlu PVC tabi XLPE idabobo, lode adaorin ṣe soke ti ọpọlọpọ awọn asọ ti Ejò onirin ti idaamu ni a ajija ati dudu lode apofẹlẹfẹlẹ eyi ti o le ṣe ti PVC, thermoplastic polyethylene tabi XLPE.