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2.工頻電壓試驗:交流50HZ3.5KV/5min不擊穿IEC阻燃等級: 為了評定線纜的阻燃性能優劣,分別制定了 IEC60332-1、IEC60332-2和IEC60332-3三個。IEC60332-1和IEC60332-2分別用來評定單根線纜按傾斜和垂直布放時的阻燃能力(國內對應GB12666.3和GB12666.4)。IEC60332-3(國內對應GB12666.5-90,GB12666.5已經被GB/T 18380.3-2001代替)用來評定成束線纜垂直時的阻燃能力,相比之下成束線纜垂直時在阻燃能力的要求上要高得多。
鎧裝控制電纜絕緣電阻:每根芯線與其余線芯接地,控制電纜大于10000MΩ.km,HYAT電纜大于3000MΩ.km。
RVVZ 1X4批發電纜批發價格(天聯牌)
MKVV 銅芯聚絕緣聚氯護套阻燃礦用控制電纜 (2-14)*(4-6)
型號介紹HYA:銅芯實心聚烯烴絕緣擋潮層聚護套市內通信電纜。
鎧裝阻燃控制電纜型號有;ZR-KVV22,ZR-KVV32,ZR-KVVR22 2*0.5,3*0.75,4*4,------37*1.5mm。
RVVZ 1X4批發電纜批發價格(天聯牌)
塑料絕緣電力電纜 絕緣層為塑料的電力電纜。常用的塑料有聚氯、聚、。塑料電纜結構簡單,制造加工方便,重量輕,敷設安裝方便,。因此廣泛應用作中低壓電纜,并有取代粘性浸漬油紙電纜的趨勢。其缺點是存在樹枝化擊穿現象,這了它在更高電壓的使用。
屏蔽層既起到電磁波對外發射的作用,又可作為短路電流的通道,能起到中性線芯的保護作用。6/10kV變頻電機電纜,考慮到電纜在使用中經常受到徑向外力作用,在電纜屏蔽層外鍍鋅鋼帶鎧裝層(在屏蔽層和鋼帶鎧裝層之間加隔離套)。
s himself on her four.”166 But all to no pure; he had served her turn, and was now useless to her. A month later he was forced to fly to Calais, and from thence went to Chaulnes, where his mother saw him for the first time since his adventure. She had gone with anger on her lips, but found her son with death in his heart, and had nothing but loving words for him and consolation for his
MKYJV 銅芯聚絕緣聚氯護套阻燃煤礦用控制電纜(2-14)*(4-6)(2-61)*(0.75-2.5) 鋪設在室內、電纜內、管道等固定 。
計算機電纜執行 SPTL/QB2002.10-01 。
KVVR 銅芯聚氯絕緣聚氯護套控制軟電纜 450/750 4-37 0.75-10 敷設在室內,有要求的。
MT386-1995《煤礦用阻燃電纜阻燃性的試驗和判定規則》及Q/TX 001-2006 《煤礦用塑料絕緣控制電纜》 。
2.工頻電壓試驗:交流50HZ3.5KV/5min不擊穿IEC阻燃等級: 為了評定線纜的阻燃性能優劣,分別制定了 IEC60332-1、IEC60332-2和IEC60332-3三個。IEC60332-1和IEC60332-2分別用來評定單根線纜按傾斜和垂直布放時的阻燃能力(國內對應GB12666.3和GB12666.4)。IEC60332-3(國內對應GB12666.5-90,GB12666.5已經被GB/T 18380.3-2001代替)用來評定成束線纜垂直時的阻燃能力,相比之下成束線纜垂直時在阻燃能力的要求上要高得多。
鎧裝通信電纜機械保護層:53型采用0.15mm厚的軋紋鋼帶,縱包于基本電纜之上,兩邊搭接。鋼帶表面經涂塑處理,以防腐蝕和水份侵入。 23,22型采用雙層鋼帶繞包也有相似的性能。
and sympathy of the King and Queen-mother of France. The Earl replied that the Queen was more undecided about marrying him than ever, and he did not know what to think. He had known the Queen, he said, since they were children together, and she had always announced her intention to remain single, but if by any chance she did marry, he was sure she would marry no one but him. Vulcob was then summoned by the Queen, who at once began to dwell upon the physical qualities of Charles IX., and the Frenchman, nothing loath, launched into high-flown panegyrics of her own perfections and his ’s manliness. A day or two afterwards he got into talk with the Queen’s physician, who suggested that the best way to cement the alliance between England and France would be to bring about a marriage between the King and Queen. Vulcob objected that their ages were so different, and the unlikelihood of issue; to which the physician replied: “Your King is seventeen, and the Queen only thirty-two. Take no notice of what she
HYAC (架空 ?) ?內導體線徑 ( mm ) : 0.40 、 0.50 、 0.60 、 0.63 、 0.70 、 0.80 、 0.90 對數 (對 ): 10—300
RVVZ 1X4批發電纜批發價格(天聯牌)
充油電纜結構特點: HYAT型市內通信電纜采用全色譜絕緣,鋁塑綜合護套(即電纜的縱包屏蔽鋁帶與護套粘結成一體,形成密封護層),具有電氣性能*,施工方便的特點。
MCPT-1.9/3.3kV 3×120+1×70+3*10
1:移動頻繁。工作中需要經常移動,要求護套有較好的耐磨性。電鉆電纜除經常搬運電鉆而拖動,要求一定的抗拉力。采掘機電纜在工作中不斷在機組上卷放、收繞井在地面上拖動。
2:經常彎曲和扭轉.以電鉆電纜和采掘機電纜為嚴重。特別是電纜與電鉆或采掘機連接出,是受到彎曲、扭轉力以及拉力嚴重的部位。要求電纜在很好的柔軟性和耐多次彎曲、扭轉性。
3:機械外力破壞。菜采區工作的電纜,易被掉下的礦石或是巖石的沖砸而損壞,或被大的礦石及其他裝備(MCPT-1.9/3.3kV 3×120+1×70+3*10如礦車)、材料壓住,壓扁電纜而引起電氣短路。在礦井電纜事故中,比率大。
4:不易引起燃燒。煤礦及其他礦井有瓦斯氣,易爆易燃。要求電纜內絕緣受損后不易引起火花而引燃;電纜不延燃,以免擴大事故范圍。
5:有較好的電氣性能和安全保護系統。礦井中極為潮濕,流水多,電纜又與工人直接接觸;因此要求電纜有足夠的電氣強度和良好的絕緣性能。當外力機械破壞而產生電氣短路事故時,應有靈敏可靠的斷電保護系統及時切斷電源;因此優先發展屏蔽型電纜品種。
6:井下搬運條件差,要求電纜輕、小、使用方便,便于檢修。MCPT-1.9/3.3kV 3×120+1×70+3*10
7:露天礦用的高壓電纜要求耐大氣候老化。
MYPT電纜 MYPTJ電纜煤礦用阻燃電纜(簡稱為礦用電纜)執行中華人民共和國煤炭行業標準MT818-1999本標準是國家煤炭工業局發布的。煤礦用阻燃電纜包括3.3KV及以下采煤機軟電纜,1.14KV采煤機屏蔽監視加強型軟電纜,3.3KV及以下采煤機金屬屏蔽軟電纜,1.14KV及以下移動軟電纜,6KV屏蔽監視型軟電纜,6KV及以下屏蔽軟電纜,0.5KV煤礦用電鉆電纜,煤礦用移動輕型軟電纜等多種型號規格的適用于煤礦井下設備用電線電纜。
煤礦用電纜名稱對應的型號為: MCPT-1.9/3.3kV 3×120+1×70+3*10
采煤機電纜 MC MCP MCPTJ MCPT-3.3KV及以下煤鉆電纜 MZ MZP-0.5KV
礦用移動電纜 MY MYP MYPT MYPTJ-6KV及以下礦用輕型電纜 MYQ-0.5KV
礦用控制電纜 MKVV MKVVR MKVVP MKVVRP-750KV 礦用電力電纜 MVV MVV22 MYJV MYJV22
礦用通信電纜(又稱礦用信號電纜、礦用通訊電纜) MHY32 MHYVR MHYVRP MHYVP
MCPT-1.9/3.3kV 3×120+1×70+3*10
電力電纜
塑料絕緣電力電纜分為聚氯乙烯電纜也就是PVC電纜適用于低壓變壓器下方連接設備用的
MYPTJ-6/10
礦用移動金屬屏蔽軟電纜
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UGF電纜標準,優質的UGF電纜證書
6KV礦用橡套軟電纜-高壓礦用電纜
1、 型號及名稱: UGF-6000V礦用橡套軟電纜
UG-6000V礦用橡套軟電纜
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