Porcelain pin insulator

PIN INSULATOR

Pin insulator is a component that supports or suspends a wire and forms electrical insulation between the tower and the wire . The pin type porcelain insulator and cast steel are cemented together, and the surface of the porcelain is coated with glaze to improve the insulation of the insulator.

Pin Insulator should have sufficient insulation strength and mechanical strength. During operation, they should not only withstand the effects of working voltage and overvoltage, but also have sufficient resistance to the erosion of chemical impurities, and need to be able to adapt to the changes in temperature and the influence of the surrounding environment. 

55series porcelain pin insulator 55 Series Porcelain Pin Insulator

ANSI CLASS Leakage diastance/

in(mm)

Dry arcing Distance/

in(mm)

Min Pin Height/

in(mm)

Cantilever Strength/

kN

Low frequency  flashover voltage Wet/kV Low frequency  flashover voltage Dry/kV Critical Impulse

flashover voltage positive/kV

Critical Impulse

flashover voltage negative/kV

Low frequency puncture Voltage/kV Radio Influence voltage data/test   voltage to ground/kv Radio Influence voltage data/Maximum RIV at 1000kHz/kV Net weight/lb
55-1 4(102) 2-1/4(57) 4(102) 3000(13.3) 35 20 50 70 50 5 50 1.2
55-2 5(127) 3-3/8(86) 4(102) 2500(11.1) 45 25 70 85 70 5 50 1.5
55-3 7(178) 4-1/2(114) 5(127) 2500(11.1) 50 30 90 110 90 10 50 2.4
55-4 9(299) 5(127) 5(127) 3000(13.3) 65 35 105 130 95 10 50 4.1
55-5 12(305) 6-1/4(159) 6(152) 3000(13.3) 100 45 130 150 115 15 100 6.6
55-6 15(381) 8(203) 7-1/2(190) 3000(13.3) 100 50 150 170 135 22 100 8.5

56 series porcelain pin insulator

56 Series Porcelain Pin Insulator

ANSI CLASS Leakage diastance/

in(mm)

Dry arcing Distance/

in(mm)

Min Pin Height/

in(mm)

Cantilever Strength/

kN

Low frequency  flashover voltage Wet/kV Low frequency  flashover voltage Dry/kV Critical Impulse

flashover voltage positive/kV

Critical Impulse

flashover voltage negative/kV

Low frequency puncture Voltage/kV Radio Influence voltage data/test   voltage to ground/kv Radio Influence voltage data/Maximum RIV at 1000kHz/kV Net weight/lb
56-1 13(330) 7(178) 6(152) 2500(11.1) 95 60 150 190 130 15 100 1.3
56-2 17(432) 8-1/4(210) 7(178) 3000(13.3) 110 70 175 225 145 22 100 11
56-3 21(533) 9-1/2(241) 8(203) 3000(13.3) 125 80 200 265 165 30 200 17
56-4 27(686) 11-1/4(286) 10(254) 3000(13.3) 140 95 225 310 185 30 200 24
56-5 34(864) 14(356) 12(305) 3000(13.3) 175 125 270 340 225 44 200 30

BS STANDARD PIN INSULATOR

BS Standard Porcelain Pin Insulator