Silicone Rubber Insulator

High Voltage Pin Type Insulators
Main Dimensions and Standand Particul Ars
ANSI Class Main Dimensionin (mm) Creepage Distance in (mm)

Min.Pin length in (mm)

Cantilever Strength 1b (mm) Average Flashover Power Frequency Puncture Voltage KV Radio lfluence Voltage
Power Frequency Critial lmpulse Test Voltage to Ground KV Max.Rivat 1mHz
D H d d1 h1 R1 R2 Dry kv Wet kv Positive kv Negative kv
56-1

71/2(191)

53/4(146)

33/4(89)

13/8(35)

2(51)

3/4(19)

9/14(14)

13
(330)

6
(152)

2500
11

95 60 150 190 130 15 100
56-2

9
(229)

61/2(165)

4
(102)

13/8(35) 2(51) 3/4(19) 9/14(14)

17
(432)

7
(178)

3000
(13.2)

110 70 175 225 145 22 100
56-3 101/2(267) 71/2(241)

4
(102)

13/8(35) 2(51) 3/4(19) 9/14(14)

21
(533)

8
(203)

3000
(13.2)

125 80 200 265 165 30 200
56-4

12
(305)

121/2(241)   13/8(35) 2(51) 3/4(19) 9/14(14)

27
(385)

10
(254)

3000
(13.2)

140 95 225 310 185 30 200
56-5 131/2(343) 121/2(318   13/8(35) 2(51) 3/4(19) 9/14(14)

34
(864)

12
(305)

3000
(13.2)

175 125 270 340 225 44 200
High Voltage Pin Type Insulators
Main Dimensions and Standand Particul Ars
Part No. Fig Main Dimensionin (mm) Creepage Distance in (mm)

Cantilever Strength 1b(kn)

Withstand Voltage Power Frequency Puncture Voltage KV Radio lfluence Voltage Used Spindle
D H d1 h R1 R2 d Positive kv Negative kv Test Voltage to Ground KV Max Riv at 1MHz
P-11-Y 5 140 133 18.29 48 13 9.5   240 11 45 80 150 15 8000/100 Smell steel head
P-15-Y 5 152 137 18.29 48 13 12.7   298 11 50 95 150 15 8000/100
P-22-Y 6 230 165 27.78 52.63 19 14.3   432 11 70 125 200 22 12000/100 Large steel head
P-33-Y 7 279 244 27.78 52.63 19 13   630 13.8 90 170 210 30 16000/100
PW-15-Y 8 170 185   52.63 16 16 76 432 11 50 95 150 22 12000/100
PW-22-Y 9 205 255   52.63 16 16 76 673 11 70 125 200 30 16000/100
PW-33-Y 9 240 320   52.63 16 16 76 851 11 90 170 210 44 25000/100
Note:The Left Side of slant is Comman glaze, The right side of slant is semiconductor glaze
Porcelain Disc Suspension Insulators
Main Dimensions and Standand Particul Ars
ANSI Class Fig Main Dimension in(mm) Creepage Distance in (mm) Combined M&E strength 1b(KN) Mechanical impact strength in-1b(N-m) Time load test value 1b(KN) Average Flashove Voltage Power Frequency Puncture voltage KV Radio lfluence Voltage
Power Frequency Critial lmpulse
D(max) H Dry kv Wet kv Positive kv Negative kv Test Voltage to Ground KV Max Rivat 1mHz
52-1 7 61/2(165) 51/2(141)

7
(178)

10000
(44)

4.5
(5.0)

6000
(27)

60 30 100 100 80 7.5 7.5
52-2 7

8
(203)

53/4(146)

81/4
(210)

15000
(67)

50
(5.0)

10000
(44)

65 35 115 115 90 7.5 7.5
52-3 8 103/4(273) 53/4(146)

111/2
(292)

15000
(67)

55
(6.0)

10000
(44)

80 50 125 130 110 10 10
52-4 9 103/4(273) 53/4(146)

111/2
(292)

15000
(67)

55
(6.0)

10000
(44)

80 50 125 130 110 10 10
52-5 8 103/4(273) 53/4(146)

11
(292)

25000
(111)

60
(7.0)

15000
(67)

80 50 125 130 110 10 10
52-6 9 103/4(273) 53/4(146)

11
(292)

25000
(111)

60
(7.0)

15000
(67)

80 50 125 130 110 10 10
52-9 10 41/2(114)

61/4
(171)

63/4
(171)

10000
(44)

45
(5.0)

6000
(27)

60 30 100 90 80 7.5 7.5
Low&Medium Voltage Pin Type Insulators
Main Dimensions and Standand Particul Ars
ANSI Class Main Dimensionin (mm) Creepage Distance in (mm)

Min.Pin length in (mm)

Cantilever Strength 1b (mm) Average Flashover Power Frequency Puncture Voltage KV Radio lfluence Voltage
Power Frequency Critial lmpulse Test Voltage to Ground KV Max.Rivat 1mHz
D H h Dry kv Wet kv Positive kv Negative kv
55-1

33/4(83)

31/2(89)

13/4(44)

4(102) 4(102) 3000(13) 35 20 50 70 50 5 2500/50
55-2 33/4(95) 31/4(83) 31/2(38) 5(127) 4(102) 2500(11) 50/45 25 75/70 95/85 70 5 2500/50
55-3 43/4(121) 33/4(95) 31/2(38) 7(178) 5(127) 2500(11) 65/55 35/30 100/90 130/110 90 10 5500/50
55-4 51/2(140) 43/8(111) 13/4(44) 9(229) 5(127) 3000(13) 70/65 40/35 110/105 140/130 95 10 5500/50
55-5

7(178)

47/8(124)

2(51)

12(305) 6(125) 3000(13) 85/80 45 140/130 170/150 115 15 8000/100
Note:The Left Side of slant is Comman glaze, The right side of slant is semiconductor glaze
Spool Insulators
Main Dimensions and Standand Particul Ars
Type 53-1 53-2 53-3 53-4 53-5
Part No. 006008 009009 006010 006011 006012
Fig No 2 1 2 2 3
Main Dimensions(mm) H 54 76 81 76 105
h 27 38 40.5 38 52.5
D 57 79 76 105 102
d 45 45 45 73 73
d1 18 18 18 18 18
d2 22 24 24 24 24
R 11 18 11 16 11
Mechanical Failing load(kg) 907 1360 1814 2041 2722
Flashover(min) Power Frequency Dry(kv) 20 25 25 25 35
Wet(kv) Upright 8 12 12 12 18
level 10 15 15 15 25
Weight(kg) 0.22 0.55 0.60 1.15 1.20
Shackle Insulator
Main Dimensions and Standand Particul Ars
Type 006006 009005 006007 006013 006014 006015
Part No. 2 1 1 3 3 3
Fig No ED-2(C) ED-2(B) ED-2(B)1 11617 1618-1 1618-2
Main Dimensions(mm) H 80 76 76 65 75 75
D 80 89 89 76 89 89
d 50 48 48 46 55 55
d1 22 21 17.5 17.6 17 17
R 6 10 10 9 12.5 12.5
Mechanical Failing load(kg) 13 12 12 9 10 13
Flashover(min) Power Frequency Dry(kv) 25 25 25 20 20 25
Wet(kv) 15 12 12 9 9 12
Weight(kg) 0.50 0.50 0.50 0.4 - -
Fired blank:bron glaze
High Voltage Pin Type Insulators
Main Dimensions and Standand Particul Ars
Type St-10/J St-15/J St-20/J P-20-D
Part No. 101034 101022 101023 101015
Fig No 14 14 14 15
Main Dimensions(mm) H 130 150 185 185
h 55 60 65 52.63
D 135 150 175 175
d 31 31 35 27.78
R1 10 10 10 10
R2 12.5 12.5 12.5 12.5
Nominal voltahge(kv) 10 15 20 20
Creepage disance(mm) 240 270 340 340
Power-Frequency Puncture Voltage(kv) 110 120 140 140
Electronical Failing load(KN) 12 12 14.7 14.7
Flashover(min) Power Frequency voltage Dry(kv) 70 75 90 80
Wet(kv) 42 53 65 50
Fired blank:bron glaze 50%Critical Fmpulse 100 110 130 130
Weight(kg)
1.5 2.7 3.4 3.8
Strain Insulators for Lines
Main Dimensions and Standand Particul Ars
CLASS ANSL 54-1 54-2 54-3 54-4
Part No. 012001 012001 012003 012001
Fig No 1 1 1 2
Main Dimensions(mm) H 88 108 140 171
h1 64 76 103 114
D 64 73 86 89
d 44 54 60 60
d1 16 22 25 25
h 44 57 79 69
Mechanical Failing load(kg) 44 53 89 89
Creepage disance(mm) 41 47 57 76
Minimum Flashover voltage Power Frequency voltage Dry(kv) 25 30 35 40
Wet(kv) 12 15 18 23
Weight(kg)
0.43 0.63 1.2 2