HYAT電纜介紹
1.定義與俗稱(chēng)
HYAT俗稱(chēng)充油電纜,是銅芯實(shí)心聚烯烴絕緣填充式擋潮層聚乙烯護(hù)套市內(nèi)通信電纜。
2.執(zhí)行標(biāo)準(zhǔn)
參考郵電部YD/T630 - 93標(biāo)準(zhǔn),充油電纜執(zhí)行標(biāo)準(zhǔn)為YD/T322 - 1996 。
3.結(jié)構(gòu)特點(diǎn)
絕緣:采用全色譜絕緣,把單根絕緣線按照不同的節(jié)距扭絞成對(duì),并采用規(guī)定的色譜組合以識(shí)別線對(duì),降低了線對(duì)間的相互干擾串音,功率耗損小。絕緣材料為高密度聚乙烯或聚丙烯,按照色譜標(biāo)明絕緣線的顏色。
護(hù)套:鋁塑綜合護(hù)套,即電纜的縱包屏蔽鋁帶與護(hù)套粘結(jié)成一體,形成密封護(hù)層,具有電氣性能,施工方便的特點(diǎn)。在纜芯中和屏蔽層的內(nèi)外表面用油膏填充和澆注處理,以防水分侵入。
4.主要電氣性能
直流電阻:20℃時(shí),0.4mm直徑導(dǎo)體≤148,0.5mm直徑導(dǎo)體≤95.0,0.6mm直徑導(dǎo)體≤65.8,0.8mm直徑導(dǎo)體≤36.6。
絕緣電氣強(qiáng)度:導(dǎo)體之間1min 1kv不擊穿,導(dǎo)體與屏蔽1min 3kv不擊穿 。
絕緣電阻:每根芯線與其余線芯接地,HYAT電纜大于3000MΩ·km
低煙無(wú)鹵通信電纜WDZC-HYAT 2*2*0.4
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