MOQ | 100 pcs |
Port | Shenzhen/Shanghai |
Packaging | Pallet |
Lead Time | 30-45days |
Color: | Grey/Brown | Brand: | DF/ OEM |
Model No. | 57-1,57-2,57-3,57-4,57-5 | Origin | Hunan,China |
Porcelain line post insulators manufactured by DONGFANG are wet process porcelain, and used in distribution and transmission line There are three types of porcelain line post insulators: Clamp Top insulators, Tie Top insulators, and “F” neck type insulators.
Main parameters:
Voltage Range: 1kV~220kV
Cantilever strength:4kN,8kN,12.5kN and as per client’s
request
Glaze: Light grey, white, brown
Porcelain line post insulators complies with following
standards:
● ANSI C29.7
● IEC60383
● AS60720
ANSI Class No. |
Creepage Distance (mm) |
Dry Arcing Distance (mm) |
Cantilever Strength (kN) |
Flashover Voltage(kV) |
Critical Impulse Flashover Voltage (kV) |
RIV Data |
|||
Dry | Wet | Pos | Neg | Test voltage to ground (kV) |
Max.RIV at 1MHz (μV) |
||||
57-1 S/L | 356 | 165 | 12.5 | 80 | 60 | 130 | 155 | 15 | 100 |
57-2 S/L | 559 | 241 | 12.5 | 110 | 85 | 180 | 205 | 22 | 100 |
57-3 S/L | 737 | 311 | 12.5 | 125 | 100 | 210 | 260 | 30 | 200 |
57-4 S/L | 1016 | 368 | 12.5 | 150 | 125 | 255 | 340 | 44 | 200 |
57-5 S/L | 1143 | 438 | 12.5 | 175 | 150 | 290 | 380 | 44 | 200 |
57-11 V/H | 356 | 165 | 12.5 | 80 | 60 | 130 | 155 | 15 | 100 |
57-12 V/H | 559 | 241 | 12.5 | 110 | 85 | 180 | 205 | 22 | 100 |
57-13 V/H | 737 | 311 | 12.5 | 125 | 100 | 210 | 260 | 30 | 200 |
57-14 V/H | 1016 | 368 | 12.5 | 150 | 125 | 255 | 340 | 44 | 200 |
57-15 V/H | 1143 | 438 | 12.5 | 175 | 150 | 290 | 380 | 44 | 200 |