Waea Hanga Paerewa ASTM
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Waea kirihou whakamahana ASTM UL Momo taura TW/THW THW-2
Ko ngā waea TW/THW he waea parahi totoka, he taura rānei, he ngohengohe kua whakamahanatia ki te Polyvinylchloride (PVC).
Ko te waea TW he tikanga mō te waea kirihou wera, ātete-wai.
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Waea THHN THWN THWN-2 paninga kirihou ASTM UL ātete wera teitei nailoni
He pai ngā waea THHN THWN THWN-2 hei whakamahi hei taputapu mīhini, hei ara iahiko whakahaere, hei waea taputapu rānei. He whakamarumaru PVC me ngā koti nairona ngā THNN me THWN. Nā te whakamarumaru PVC kirihou wera, ka ātete mura ngā waea THHN me THWN, ā, ka tāpirihia hoki e te koti nairona te ātete ki ngā matū pēnei i te penehīni me te hinu.
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Waea Parahi ASTM UL XLPE XHHW XHHW-2 Ātete Wera Teitei Ātete Wai
Ko te waea XHHW he tohu mō te "XLPE (polyethylene hono-whiti) Ātete-wera Teitei Ātete-wai." Ko te taura XHHW he tohu mō tētahi rauemi whakamarumaru motuhake, te whakatauranga pāmahana, me te āhua o te whakamahinga (e tika ana mō ngā wāhi mākū) mō te waea hiko me te taura.