Ningbo Suntech Power Machinery Tools Co.,Ltd.
                                                                                                           
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Since 1995
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Power Distribution Equipment

57 - 4 Ceramic Bus Post Insulator High Voltage 1015mm

Price Negotiable
Price: Negotiation
MOQ: 1 PCS
Delivery Time: 20-25 days after deposit
Brand: Suntech
Product Description

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

 

 

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Company Ningbo Suntech Power Machinery Tools Co.,Ltd.
Location NO.56,Xiwu Street,Fenghua District,Ningbo,Zhejiang,China 315505
Contact Person Peter Mao

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