Line post insulator The product for export can be processed under ANSI ,IEC. Type: 57-3
57 Series Line Post Insulator
Line Post Insulator used on distribution line and transmission line upto 132KV. It is mounted rigidly on supporting structure by means of a steed or bolts. It is non-puncturable design. Connected fitting type: tie top conductor binding type and clamp top with vertical or horizontal mounting. Cantilever strength can be 5KN, 10KN, 12.5KN, 16KN. Main type: ANSI C29.7 type: 57-1, 57-2, 57-3, 57-4, 57-5, 57-11, 57-12, 57-13, 57-14, 57-15, 57-21, 57-22, 57-23, 57-24, 57-25, 57-31, 57-32, 57-33, 57-34, 57-35 Other type according to IEC383 and BS137.
Main Dimensions and Standard Particulars
ANSI Class | 57-1 | 57-2 | 57-3 | 57-4 | 57-5 |
Creepage Distance (mm) | 356 | 559 | 737 | 1015 | 1143 |
Dry Arcing Distance(mm) | 165 | 241 | 311 | 368 | 438 |
Cantilever Strength (KN) | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 |
Low Frequency Dry Flashouer(kv) | 80 | 110 | 125 | 150 | 175 |
Low Frequency Wet Flashover (kv) | 60 | 85 | 100 | 125 | 150 |
Critical Impulse Flashover Pos(kv) | 30 | 180 | 210 | 255 | 290 |
Critical Impulse Flashover Neg(kv) | 155 | 205 | 260 | 340 | 380 |
Test Voltage To Ground(kv) | 15 | 22 | 30 | 44 | 44 |
Maximum RIV at 1000KHZ (uv)1000KHZ | 100 | 100 | 200 | 200 | 200 |
Net Weight Each Approx(kg) | 5.0 | 9.5 | 11 | 16 | 18 |
Number in standard package | 6 | 3 | 3 | 2 | 2 |
line post insulator 57-1
