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在外部火勢作用一定時間內(nèi)需維持通電的下列場所或回路，明敷的電纜應(yīng)實施耐火防護或選用具有耐火性的電纜。如消防、、應(yīng)急照明、遮斷器操作直流電源和發(fā)電機組緊急停機的保全電源等重要回路；電腦監(jiān)控、雙重化繼電保護、保安電源等雙回路合用同一通道未相互隔離時其中一個回路。

絕緣電氣強度：導(dǎo)體之間1min 1kv不擊穿 導(dǎo)體與屏蔽1min 3kv不擊穿

電纜7X0.35 單根鍍錫屏蔽線
 

PTYA23 37芯鐵路電纜銅導(dǎo)體直徑：1.0毫米直流電阻：≤23.5Ω/km電纜參考外徑：38mm纜芯結(jié)構(gòu)：7×4＋3×2＋3對絞組工作電容：≤70nF星形四線組工作電容：≤50 nF

型號介紹ZR-VV22：聚氯絕緣鋼帶鎧裝聚氯護套阻燃電力電纜用途：敷設(shè)在室內(nèi)、內(nèi)、管道中、敷設(shè)在地下，電纜能受機械外力作用。

礦用鎧裝控制電纜；MKVV22,MKVV32 2*0.5,3*0.75,4*4,------37*1.5mm。

電纜7X0.35 單根鍍錫屏蔽線


充油電纜結(jié)構(gòu)特點： HYAT型市內(nèi)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(jié)成一體，形成密封護層），具有電氣性能*，施工方便的特點。

阻燃電纜、無鹵電纜、耐火電纜的明確概念及優(yōu)缺點

had quietly agreed with Leicester beforehand that her complaisance should not go beyond appearance, and before the fourite returned to Court Sackville’s departure had been indefiniy tponed. During Leicester’s absence from Court Cecil and Sus were more hopeful about the Archduke, although as we now see with very little reason. The Austrians were lethargic, the Spaniards coldly cautious, whilst the French were determined and unceasing in their efforts to thwart the Archduke’s suit. De Foix spent large sums in Leicester’s interest, and Catharine de Medici showered gifts and fours upon him constantly. The moment that he was in disgrace, however, or when the Archduke’s match seemed really progressing, they played their trump card in bringing forward Charles IX. again. When Rambouillet, the French envoy to Scotland, saw Elizabeth in February he had enlarged, by the Queen-mother’s orders, upon the vigour and comeliness of the young King. The105 Queen was always ready to listen to talk like this, and sighed that she would like to meet him, “but,” she said, “do y

ZRKVV22 銅芯聚氯絕緣聚氯護套編織鋼帶鎧裝zrkvv22電纜 450/750 4-37 0.75-10 敷設(shè)在室內(nèi)，電纜溝、管道直埋等男受較大機械外力有阻燃要求的固定。

HJYJVP2/SA 成束阻燃型交聯(lián)聚絕緣、聚氯護套、銅塑復(fù)合帶繞包總屏蔽呼叫通信電纜。

MHYA32(HUYA32) 礦用聚絕緣、鋁/聚粘結(jié)護層、鍍鋅鋼絲鎧裝、阻燃聚氯護套通信電纜 10-100 1/0.8

o ZR-YJV即阻燃YJV，全稱是阻燃交聯(lián)聚絕緣聚氯護套電力電纜

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(yōu)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(nèi)對應(yīng)GB12666.3和GB12666.4）。IEC60332-3（國內(nèi)對應(yīng)GB12666.5-90，GB12666.5已經(jīng)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。

全聚氯局用電纜HJVV HJVVP 105芯（21×3×0.5+21×2×0.5）全聚氯局用電纜
電纜7X0.35 單根鍍錫屏蔽線

religious matters will go on well, and the kingdom will remain friendly with your Majesty, but if not it will all be spoilt. If she decide to marry out of the country she will at once fix her eyes on your Majesty, although some of them here are sure to pitch upon the Archduke Ferdinand.”15 Feria was wrong in his estimate of Elizabeth’s character. From the first she had determined to be a popular sovereign, and all observers remarked her almost undignified anxiety to catch the cheers of the crowd. She knew that the most unpopular step she could take would be one that bound her interests to Spain, and particularly a marriage with Philip. A French marriage was imsible, for the heir to the crown of France was married to Mary Stuart, whose legal right to the English throne was undouedly stronger than that of Elizabeth herself.

在阻燃型系列產(chǎn)品中，成功地應(yīng)用了隔氧技術(shù)，不僅0.6/1KV的聚氯絕緣和交聯(lián)聚絕緣阻燃電力電纜能達到GB/T12666.5《成束電力電纜試驗》中A類，而且額定電壓6/10KV及8.7/15KV交聯(lián)聚阻燃電力電纜也能達到A類高阻 燃要求且有較大裕度。

額定電壓：U0/U為450/750V，導(dǎo)體線芯長期工作溫度為70℃、95℃兩種，電纜敷設(shè)溫低于0℃。

礦用電纜  MYQ-0.3/0.5 4*2.5

     額定電壓0.66/1.14KV及以礦用移動橡套軟電纜（GB12972.5-91） 礦用電纜  MYQ-0.3/0.5 4*2.5
     本產(chǎn)品適用于額定電壓0.66/1.14KV： .及以下移動設(shè)備用銅芯橡皮護套軟電纜 
     型號 名稱 主要用途 
     （MY）UY-0.38/0.66 礦用移動橡套軟電纜 額定電壓為0.38/0.66KV各種井下移動采煤設(shè)備的電源連接 ： .
     （MYP）UYP-0.38/0.66 礦用移動屏蔽橡套軟電纜 額定電壓為0.38/0.66KV各種井下移動采煤設(shè)備的電源礦用電纜  MYQ-0.3/0.5 4*2.5連接
     （MYP）UYP-0.66/1.14 礦用移動屏蔽橡軟套電纜 額定電壓為0.66/1.14KV各種井下移動采煤設(shè)備的電源連接

1、  電纜絕緣主線芯之間及主線芯與地線之間的絕緣電阻,換算到+20℃時不低于100MΩ·km。

1、電纜絕緣主線芯之間及主線芯與地線之間的絕緣電阻,換算到+20℃時不低于100MΩ·km。
2、主線芯屏蔽層的過渡電阻換算到20℃時不高于3kΩ。
3、產(chǎn)品標準：MT818.5-1999。
4、MYP型電纜有3個帶絕緣屏蔽的主線芯和一個包覆半導(dǎo)電橡皮層的地線組成，圍繞半導(dǎo)電橡皮礦用電纜  MYQ-0.3/0.5 4*2.5層墊芯絞合成纜。外面擠包黑色氯化聚乙烯橡皮護套或黑色氯丁橡皮護套。
5、導(dǎo)電線芯：采用軟銅線，其性能符合 GB/T3956-1997。
6、絕緣：采用GB7594.2-1987中XJ-00A型橡皮。
7、線芯識別：采用絕緣分色識別，主線芯紅、綠、白。
8、地線：采用半導(dǎo)電橡皮包覆。
9、絕緣屏蔽：在絕緣表面包半導(dǎo)電帶。礦用電纜  MYQ-0.3/0.5 4*2.5
10、成纜：3個主線芯1個地線圍繞半導(dǎo)電橡皮墊芯按右向絞合成纜。
11、護套：采用GB7594.7-1987中XH-03A型橡皮。護套橡皮的氧指數(shù)≥40。
12、成品電纜的阻燃性能滿足MT386-1995的要求。
13、電纜標志：電纜表面印有型號、電壓、規(guī)格及制造廠名稱。礦用橡套電纜結(jié)構(gòu)特點：  
一：導(dǎo)電線芯。柔軟性要求以電鉆電纜，采掘機電纜為高；導(dǎo)線結(jié)構(gòu)采取如下措施：  
1， 采用較軟的細直徑銅單線、以小節(jié)距束合、復(fù)絞。整根電纜的彎曲扭轉(zhuǎn)性還礦用電纜  MYQ-0.3/0.5 4*2.5受到絕緣、護套結(jié)構(gòu)的影響，因此不能認為單絲越細，節(jié)距越小越好。  
2， 采用同向束絞和復(fù)絞可提高柔軟性。  
3， 為了便于導(dǎo)線在絕緣層中的相對滑動和便于安裝維修。電鉆電纜和小截面的采掘機電纜導(dǎo)線單絲應(yīng)鍍錫，大截面采掘機電纜在導(dǎo)線外還用包紙帶隔離絕緣。  
二：絕緣層 礦用電纜  MYQ-0.3/0.5 4*2.5

（MYP）UYP-3.6/6

 礦用移動屏蔽套軟電纜

 額定電壓為3.6/6KV移動式地面礦同機械電源的連接,環(huán)境溫度下限為-20℃

(MYPT)UYPT-3.6/6

 礦用移動金屬屏蔽橡套軟電纜

MYPTJ-3.6/6             MYPTJ電纜使用說明

 礦用移動屏蔽監(jiān)視軟電纜

 額定電壓為3.6/6KV采煤機電纜動力電纜，用于電源的連接

MYPTJ-6/10

 礦用移動金屬屏蔽軟電纜

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