The prefad branch electrical power cable
Application
The prefad branch electrical power cable can be wildly applied to the tall buildings:dwelling house buildings,office buildings,guesthouses,hospital markets and so on,but also has expanded to the other realm:highway,bridge and tunnel illumination and so on.As a new type of building cable,prefad branch cables are produced according to the targets of consumer’s demands:type of the main and the branch cable,cross section,length and branch position,they are finished on the assembly line in the factory where the worker use a series of special purpose equipments .
Product features
(1)Insulation resistance ≥200MΩ.
(2)Insulation withstand voltage ≥350KV.
(3)Excellent air tightness and water proofing quality.When immerge branch joint water,measured insulation resistance between water and cable core,and power frequency withstand voltage meet the requirement of items (1)(2).
(4)Little contact resistance of branch joint.The ratio vatio value of contact resistnce vs reference resistance of equal length branch line is equal to less than 1.2.
(5)For ZA type flame-retardant prefabricated branch cable,self extinguishing time of jacket is equal to or less than 12s and meets GB/T 18380.3-2008.
(6)Besiddes power supply in normal workingcondition,fire-resistant type calbe can remain normal operation for 90min under burning condition and meets GB/T 12666.6-2008 .
(7)WDZA、WDNH clean type prefabricated branch cable posses the features such as low-smoke、low-toxic and fire-resistance etc.
(8)Max.working temperature of copper core of VV type cable is 70℃ and that of YJV type cable is 90℃.YJV type prefabricated branch cable has excellent themal stability and aging resistance.
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Copper and TL prefab electrical cable with rated voltage 0.6/1KV |
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Type |
Name |
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YDF-VV |
Polyvinly chloride insulated and sheathed prefab branch electrical power cable |
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YDF-ZAVV |
Polyvinly chloride insulated and sheathed flame-retardant prefab branch electrical power cable |
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YDF-NHVV |
Polyvinly chloride insulated and sheathed fire-resistant prefab branch electrical power cable |
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YDF-YJV |
Cross linked polyethylene insulated polyvinly chloride sheathed prefab branch electrical power cable |
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YDF-ZAYJV |
Cross linked polyethylene insulated polyvinly chloride sheathed flame-retardant prefab branch power cable |
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YDF-NHYJV |
Cross linked polyethylene insulated polyvinly chloride sheathed fire-resistant prefab branch power cable |
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YDF-WDYJV |
Cross linked polyethylene insulated polyvinly chloride sheathed low-smoke and no-halofen prefab branch l power cable |
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YDF-WDZAYJV |
Cross linked polyethylene insulated polyvinly chloride sheathed low-smoke and no-halofen flame-retardant prefab branch power cable |
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YDF-WDNHYJV |
Cross linked polyethylene insulated polyvinly chloride sheathed low-smoke and no-halofen fire-resistant prefab branch power cable |
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(mm2) |
Branch cable cross section |
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10 |
6 |
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16 |
10 |
16 |
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|
|
|
|
25 |
10 |
16 |
25 |
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|
|
|
|
|
|
|
35 |
10 |
16 |
25 |
35 |
|
|
|
|
|
|
|
50 |
10 |
16 |
25 |
35 |
50 |
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|
|
|
|
|
70 |
10 |
16 |
25 |
35 |
50 |
70 |
|
|
|
|
|
95 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
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|
|
|
120 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
|
|
|
150 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
|
|
185 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
|
240 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
|
300 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
|
400 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
|
500 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
|
630 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
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800 |
10 |
16 |
25 |
35 |
50 |
70 |
95 |
120 |
150 |
185 |
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Attention: the maximum cross section of the main cable of twisted prefab branch electrical power cable is 300mm2 |
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