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WDZR-DZY22、WDZR-DZYR22低煙無鹵阻燃地鐵隧道輕軌專用直流電纜

[當(dāng)前欄目：低煙無鹵阻燃電纜]????? [發(fā)布日期：2017-03-24]

WDZR-DZY22、WDZR-DZYR22低煙無鹵阻燃地鐵隧道輕軌專用直流電纜

一、執(zhí)行標(biāo)準(zhǔn)Standard

Q／1 2YJ4229-2002

二、耐壓等級Voltage：

250V、750V、1500V．3000V

三、型號Type：

WDZR-DZY22、WDZR-DZYR22

四、產(chǎn)品結(jié)構(gòu)Structure：

導(dǎo)電線芯十絕緣層+組合防水層+鎧裝層+隔氧層+外護層

Conductor + Insulation + Combination waterproof layer + armored layer + Oxygen insulation layer + outer sheath

五、生產(chǎn)范圍Product Specification

芯數(shù)為單芯．截面為0.5-400mm2。

六、適用范圍Applications

該電纜適用于地鐵隧道．輕軌、車站等人員相對集中．環(huán)境相對密閉的場所，因城市軌道交通多在地下．一旦發(fā)生火災(zāi)．地下封閉的環(huán)境給人員逃生和消防工作帶來很大的困難，這些決定了敷設(shè)在該場所內(nèi)的電纜不僅應(yīng)具有很高的阻燃要求，而且特別要求在燃燒時不產(chǎn)生濃煙及有毒害作用的鹵酸氣體．減少對設(shè)備和儀器儀表產(chǎn)生的“二次災(zāi)害”．同時該電纜還具有耐日光老化，防水及防鼠等性能，因此該電纜尤其適用于地鐵隧道和輕軌沿線及配電柜與地鐵之間．及地鐵和輕軌車站內(nèi)部的電氣連接．作為直流牽引的電力傳輸。

The cables are used in dense locations as subway tunnel device and stations. Once fire happening, the close environment would make fleeing and fire protection difficult. So it concludes that the laid cables in dense locations must have high flame resistance as well as not bringing smoke and deleterious gas with halogen. Therefore, it would decrease“the second disaster” for machines and apparatus and the cables have performances of sunlight resistance．waterproof and resistance to gopher Generally．the cables are suitable for subway tunnel device．between electric cable net and subway for power transformation 0f D．C．Traction

七、產(chǎn)品型號說明：Type

WDZR-DZY22--低煙無鹵阻燃交聯(lián)聚烯烴絕緣和護套銅帶鎧裝地鐵隧道輕軌專用直流電纜， A類阻燃

Subway tunnel device D C cables having low emission of smoke non-halogen

Flame resistance rank A

WDZR-DZYR22--低煙無鹵阻燃交聯(lián)聚烯烴絕緣和護套銅帶鎧裝地鐵隧道輕軌專用軟直流電纜 A類阻燃

Subway tunnel device D C flexible cables having low emission of smoke，non-halogen flame resistance rank A

八、電纜特性：Specifications

1、直流電纜導(dǎo)電線芯的長期允許工作溫度應(yīng)不超過90℃。

Long-term conductor temperature no exceeding 90℃

2、短路時最長持續(xù)時間不超過5s．其導(dǎo)電線芯的最高溫度不超過250℃。

When short circuit happens the longest continuous time is not more than 5 seconds and the highest conductor temperature does not exceed 250℃

3、敷設(shè)時的環(huán)境溫度應(yīng)不低于O℃。

Environment temperature not less than O℃．a(chǎn)s laying．

4、電纜敷設(shè)時的最小彎曲半徑應(yīng)不小于電纜外徑的12倍。

The smallest flexible radius should not be less than 12 times of cable over-diameter as lying

5．低煙無鹵特性：滿足GB／T 17560-1998與GB／T 17651-1998的要求；

Performance of low emission of smoke and non-halogen complying with GB／T1 7560-1998 and GB／T 17651-1998

1，電導(dǎo)率≤10μs／mm；

Conductivity≤10 μs／mm：

2、DH值≥4.3。

PH value≥4.3

3、電纜燃燒煙密度透光率≥60%。

Smoke density of cable combustion Transparence ratio≥60%

6、煙氣毒性達到公共安全電纜燃燒安全級二級水平：

Toxicity index up to the second level in safety ranks。f cables combustion

7、電纜阻燃性能達到GB／T18380.3-2001電纜成束燃燒試驗A類的要求；

Flame resistance performance according to GB／T18380 3-2001 type A

8、電纜的防水性能非常優(yōu)異．可以長期浸泡在水中使用，而對其電性能影響很小。

The cable have excellent waterproof and are used in water for a long time but it doesn’t affect electric performance of cable.

9、電纜具有防紫外線性能．防紫外線性能完全能夠滿足GB 14049標(biāo)準(zhǔn)的要求：電纜在大氣和日光老化的作用下，試樣經(jīng)過42天老化后，護套的抗拉強度和裂伸長率變化率應(yīng)不超過±30％；經(jīng)過21天老化后，護套的抗拉強度和斷裂伸長率變化率應(yīng)不超過士15％的范圍。

The cables have capability of ultraviolet radiation resistance．conforming to GBl4049. Exposed in air and sunlight for 42 days．the variation of tensile strength and elongation at break of the sheath doesn‘t exceed ±30％,;and for 21 days．the variation does not exceed ±15％.

10、電纜具有防鼠咬性能．通過與空白試樣對比．經(jīng)過連續(xù)兩周試驗．試樣保護率≥95％。

Resistance to gopher：The protection radio of the cable is more than 95％in two-week’s test by comparing the original cable.

11、可以根據(jù)用戶需要生產(chǎn)其它型號和規(guī)格的直流電纜．也可提高電纜的耐溫等級到125℃．

We can manufacture other type cables according to consumer needs，and can make heat-resistant up to 125℃。

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