57 -21 Post Ceramic Insulators (ANSI)
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57 -21 Post Ceramic Insulators(ANSI)
1.Standards:ANSI 57series
2.Certificates:ISO9001:2008
3.best price and short delively
57 -21 Post Ceramic Insulators(ANSI)
1)Material: Porcelain
2)ANSI class: 57-21, 57-22, 57-23, 57-24, 57-25, 57-11, 57-12, 57-13, 57-14, 57-15
•Specifications:
Cat/NO | A1034 | A1035 | A1036 | A1037 | A1038 | A1039 | A1040 | A1041 | A1042 | A1043 |
ClassANSI | 57-21 | 57-22 | 57-23 | 57-24 | 57-25 | 57-11 | 57-12 | 57-13 | 57-14 | 57-15 |
Creepage distance (mm) | 356 | 559 | 737 | 1015 | 1145 | 356 | 559 | 737 | 1015 | 1145 |
Dry arcing distance(mm) | 165 | 241 | 311 | 368 | 438 | 165 | 241 | 311 | 368 | 438 |
Cantilever strength(kn) | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | 171 | 12.5 | 12.5 | 12.5 |
Low-frequency dry flashover (kv) | 80 | 110 | 125 | 150 | 175 | 80 | 110 | 125 | 150 | 175 |
Low frequency wet flashover(kv) | 70 | 100 | 115 | 135 | 160 | 60 | 85 | 100 | 125 | 150 |
Critical impulse flashover ,Pos(kv) | 130 | 180 | 210 | 255 | 290 | 130 | 180 | 210 | 225 | 290 |
Critical impulse flashover ,Neg(kv) | 155 | 205 | 260 | 340 | 380 | 155 | 205 | 260 | 340 | 380 |
Test voltage to ground(kv) | 15 | 22 | 30 | 44 | 44 | 15 | 22 | 30 | 44 | 44 |
Maximum RIV at 1000KHz(uV)1000KHZ | 100 | 100 | 200 | 200 | 200 | 100 | 100 | 200 | 200 |
200 |
Net weight ,approx.(kg) | 7.5 | 10.5 | 12.7 | 16.8 | 19.5 | 6.8 | 10 | 11.8 | 15.9 |
18.6 |
Number in standard package | 6 | .3 | 3 | 2 | 2 | 6 | 3 | 3 | 2 |
2 |
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