BTTZ矿物绝缘电缆敷设桥架选型问题
yanbcctv21
yanbcctv21 Lv.3
2012年12月15日 21:44:14
只看楼主

现在地下室和主楼都有BTTZ电缆敷设,桥架也没有明确标示。想请教下,BTTZ电缆桥架的选型是不是跟耐火电缆选型一样,根据截面积来选择桥架 ,还是要注意些什么?另求BTTZ各型号电缆的直径。

现在地下室和主楼都有BTTZ电缆敷设,桥架也没有明确标示。想请教下,BTTZ电缆桥架的选型是不是跟耐火电缆选型一样,根据截面积来选择桥架 ,还是要注意些什么?
另求BTTZ各型号电缆的直径。
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dianqipanli
2012年12月16日 06:45:34
2楼
型号-------------------BTTZ(BTTVZ)(WD-BTTVZ)

................导线芯数....................电缆外径..................................额定载流量............................
..............x标准截面...........裸电缆......塑料护套..............裸电缆..........塑料护套..................
.................mm²...................mm..............mm.....................A......................A...........................
.............1x1.5......................4.9.................6.2...................30....................33.........................
.............1x2.5......................5.3.................6.6....................39....................43...........................
..............1x4.........................5.9.................7.2....................51....................56.........................
...............1x6........................6.4.................7.7....................63....................69...............................
................1x10.....................7.3..................8.8...................81....................90..............................
..............1x16.......................8.3..................9.8...................107..................119......................
..............1x25.......................9.6..................11.1...................139...............154....................
...............1x35......................10..7.............12.2....................168................187.....................
...............1x50......................12.1................13.6...................207...............230.....................
................1x70......................13.7................15.2..................251...............279.........................
................1x95.......................15.4................17.4.................300...............333.........................
................1x120.....................16.8...............18.8..................344...............382.............................
................1x150.....................18.4................20.4..................388..............431..............................
................1x185......................20.4.............22.9...................434...............482.................................
................1x240.....................23.3..............25.8..................483................537................................
.................1x300....................26.0...............28.6.................795................883.....................................
..................1x400....................30.0............32.8...................948................1053.................................

................2x1.5.....................7.9..............9.4......................23.5.................26........................................................2x2.5.....................8.7.............10.2.....................32....................36...................................
................2x4.........................9.8..............11.3.....................42..................47......................................
................2x6........................10.9.............12.4...................54.....................60..............................
...............2x10.......................12.7.............14.2...................74...................82...................................
................2x16......................14.7..............16.2..................98...................109...............................
................2x25.......................17.1.............19.1.................128................142.....................................

...............3x1.5.......................8.3................9.8..................20..................22...........................
...............3x2.5......................9.3.................10.8...............27...................30........................................
................3x4........................10.4.............11.9.................36...............40.......................................
................3x6.........................11.5.............13.0................46.................51........................................
................3x10.......................13.6..............15.1...............62...............69...................................
.................3x16.......................15.6............17.6...............83................92.......................................
................3x25........................18.2............20.2...............108................120...............................

.................4x1.5......................9.1...............10.6..............20.5.............23...................................
................4x2.5.....................10.1...............11.6.............27.................30........................................
.................4x4........................11.4...............12.9..............36...............40.........................................
...................4x6.....................12.7...............14.2..............46................51...........................................
..................4x10...................14.8...............16.3...............61................68............................................
..................4x16....................17.3...............19.3..............80...............89...................................................................4x25..................20.1................22.6..............104..............116.......................................

.............7x1.5.......................10.8...............12.3...............14.........15.6..................................
.............7x2.5.......................12.1..............13.6................19..............21....................................
..............10x1.5...................13.6...............15.0...............12.5..........13.5....................................
...........10x2.5........................15.2..........17.2................17..............19........................................
............12x1.5.......................14.1...........15.6................11.5..........13..........................................
............12x2.5......................15.6...........17.6................15.5.........17................................................
...........19x1.5.......................16.6...........18.6................10.............11................................................

引自“久盛电气股份有限公司”的《矿物绝缘电缆产品样本》
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2zxhtmm
2012年12月18日 14:09:50
3楼
矿物绝缘就直接敷设啊,还用什么桥架啊
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weiwei19870220
2012年12月18日 14:41:58
4楼
这种电缆是可以直接敷设,但有时为了美观及后期管理方便会考虑桥架安装
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yanbcctv21
2012年12月22日 21:35:20
5楼
谢谢 一楼提供的电缆直径表。还想问下,BTTZ电缆与普通阻燃电缆 能不能放在同一个竖向桥架里?
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dianqipanli
2012年12月22日 22:25:46
6楼
应该可以,理由:
1.《矿物绝缘电缆敷设》99D101-6图集中第4页中附注1.电缆桥架内如果全部是矿物绝缘电缆,则不必考虑电缆本身的防火、阻燃措施,电缆桥架在某些场合需考虑耐火要求。
2.久盛电气股份有限公司的《矿物绝缘电缆》产品样本中2.1.2
下列敷设条件下,应按正常工作温度为70℃,选用电缆载流量
a........................................................................................。
b与其他种类电缆共同敷设在同一桥架,竖井,电缆沟,电缆隧道的线路。
c.........................................................................................。
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yanbcctv21
2012年12月26日 22:16:04
7楼
相当感谢给位高人!
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xiaokangzhuang
2015年11月24日 09:17:10
8楼

谢谢楼主分享
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reoknow
2015年12月01日 22:22:12
9楼
感谢楼主分享,学习了
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椰紫
2016年04月30日 21:33:03
10楼
用矿物绝缘电缆太麻烦了
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a396673967
2016年05月01日 12:45:47
11楼
过来学习学习!
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