57 - 4 Ceramic Bus Post Insulator High Voltage 1015mm

Brand Name:Suntech
Certification:ISO
Model Number:57-4
Minimum Order Quantity:1 PCS
Delivery Time:20-25 days after deposit
Payment Terms:L/C, T/T, Western Union
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Location: Ningbo Zhejiang China
Address: NO.61 Xiachen'an Road,Xiwu Street,Fenghua District,Ningbo,China.315505
Supplier`s last login times: within 26 hours
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Product Details

57-4 Ceramic Bus Post Insulator High Voltage Post Insulators


Power lines and other electrified wiring transmission of high-voltage electrical energy along suspended cables. While the wires themselves generally do not contain insulation, certain points along the electrified wiring require insulation. For example, insulators are required where live electrical cables meet the poles supporting them and when placed in buildings. Since insulators do not respond to electrical fields, they can go a long way in preventing fires and electrical failures.


The product offers many shapes during production. The enamel uses a wide range of colours according to clients’ needs, for example, grey or sky blue.


Porcelain insulators do not present defects in the ceramic-metal interface. The combination of the ceramic insulator with cast iron or aluminium structures using traditional cementing agents is resistant to transition phenomena during electric discharge.

ANSI Class
57-1
57-2
57-3
57-4
57-5
Creepage distance,mm
356
559
737
1015
1145
Dry arching distance
165
241
311
368
438
Cantilever Strength,Kn
12.5
12.5
12.5
12.5
12.5
Lower Frequency
Flashover Voltage
Dry,kv
80
110
125
150
175
Wet,kv
60
85
100
125
150
Critical Impulse
Flashover Voltage
Pos.,kv
130
180
210
255
290
Neg.,kv
155
205
260
340
380
RIV Data
Test volt. To ground,kv
15
22
30
44
44
Max RIV at 1000 KHz,Uv
100
100
200
200
200



About us: Suntech Power Tools, which located in the southeast China, it is the earliest origin Power Tools Leading City in China.We are making the various related cable pulling tools, and hydraulic tension and puller to support the transmission work.All canaccept OEM and professionally produced per ISO 9001:2008, they are being sold to over more than 50 countries in the world,and has wined the best brand reputations. Some items like the stringing blocks,cable rollers,the cable jack stands,etc we can customized, and the Construction Safety Tools ,are not demanded the MOQ. You can freely help you out either


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    57 - 4 Ceramic Bus Post Insulator High Voltage 1015mm

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