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Tensile Strength: 100
Rated Voltage: 6 KV-132 KV
Application: High Voltage
Material: Porcelain
Type: Insulator
Model Number: Porcelain line post insulator
Brand Name: JUNAI
Place of Origin: China (Mainland)
COLOR: WHITE

Specifications

Porcelain Line post insulator can be divided into horizontal line posts and vertical line posts according to insulator connectivity way, used for 6kV to 132kV transmission and distribution power lines. Porcelain Line post insulator made of porcelain materials, called line post porcelain insulator which installed with insulator stud. Line post insulator stud can be divided into long insulator stud and short insulator stud. Same dimension of the fittings as porcelain pin insulator, so they can
be exchanged. is a professional insulator manufacturer in China, also produces other specification line post insulator, you can read and download the porcelain line post insulator to learn more.

ANSI ceramic line post Insulators
1. ANSI 57-1, 57-2… series ceramic line post insulators drawings, technical data and images show as follows:


Type
Fig NO. 1 2 3 4 5 5
Leakage distance mm 356 559 737 1016 1143 1346
Dry arcing distance mm 165 241 311 368 438 489
Cantilever strength kN 12.5 12.5 12.5 12.5 12.5 12.5
Power frequency flashover voltage Dry KV 70 100 125 140 160 180
Wet KV 50 70 95 110 130 150
Critical impulse flashover voltage Positive KV 120 160 200 230 265 300
Negative KV 155 205 260 340 380
Radio interference voltage Test voltage to ground KV 15 22 30 44 44 44
Max. RIV at 1 MHz μV 100 100 200 200 200 200


2. ANSI 57-12, 57-13… series ceramic line post insulators drawings, technical data and images show as follows:


Type
Fig NO. 1 2 3 4 5 5
Creepage distance mm 356 559 737 1016 1143 1346
Dry arcing distance mm 165 241 311 368 438 489
Cantilever strength KN 12.5 12.5 12.5 12.5 12.5 12.5
Power frequency flashover voltage Dry KV 70 100 125 140 160 180
Wet KV 50 70 95 110 130 150
Critical impulse flashover voltage Positive KV 120 160 200 230 265 300
Negative KV 155 205 260 340 380
Radio interference voltage Test voltage to ground KV 15 22 30 44 44 44
Max. RIV at 1 MHz μV 100 100 200 200 200 200