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Spool type insulators

ANSI Class

53-1

53-2

53-3

53-4

53-5

Dimensions

Diameter

mm

57

79

76

105

102

Height

mm

54

76

81

76

105

Mechanical Values

Tensile Strength

kN

9.1

13.6

18.2

20.5

27.3

Electrical Values

Low frequency dry flashover voltage

kV

20

25

25

25

35

Low frequency dry flashover voltage

kV

8

12

12

12

18

Low frequency wet flashover voltage,horizontal

kV

10

15

15

15

26

Packing

Net weight,approximate

kg

0.22

0.55

0.55

1.15

1.2