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 CLASSLeakage diastance/

in(mm)

Dry arcing Distance/

in(mm)

Min Pin Height/

in(mm)

Cantilever Strength/

kN

Low frequency  flashover voltage Wet/kVLow frequency  flashover voltage Dry/kVCritical Impulse

flashover voltage positive/kV

Critical Impulse

flashover voltage negative/kV

Low frequency puncture Voltage/kVRadio Influence voltage data/test   voltage to ground/kvRadio Influence voltage data/Maximum RIV at 1000kHz/kVNet weight/lb
55-14(102)2-1/4(57)4(102)3000(13.3)35205070505501.2
55-25(127)3-3/8(86)4(102)2500(11.1)45257085705501.5
55-37(178)4-1/2(114)5(127)2500(11.1)5030901109010502.4
55-49(299)5(127)5(127)3000(13.3)65351051309510504.1
55-512(305)6-1/4(159)6(152)3000(13.3)10045130150115151006.6
55-615(381)8(203)7-1/2(190)3000(13.3)10050150170135221008.5

56 series porcelain pin insulator

56 Series Porcelain Pin Insulator

ANSI CLASSLeakage diastance/

in(mm)

Dry arcing Distance/

in(mm)

Min Pin Height/

in(mm)

Cantilever Strength/

kN

Low frequency  flashover voltage Wet/kVLow frequency  flashover voltage Dry/kVCritical Impulse

flashover voltage positive/kV

Critical Impulse

flashover voltage negative/kV

Low frequency puncture Voltage/kVRadio Influence voltage data/test   voltage to ground/kvRadio Influence voltage data/Maximum RIV at 1000kHz/kVNet weight/lb
56-113(330)7(178)6(152)2500(11.1)9560150190130151001.3
56-217(432)8-1/4(210)7(178)3000(13.3)110701752251452210011
56-321(533)9-1/2(241)8(203)3000(13.3)125802002651653020017
56-427(686)11-1/4(286)10(254)3000(13.3)140952253101853020024
56-534(864)14(356)12(305)3000(13.3)1751252703402254420030

BS STANDARD PIN INSULATOR

BS Standard Porcelain Pin Insulator