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High voltage pin insulator drawings and specifications

High voltage pin insulator drawings and specifications are about the ANSI standard 56 series insulators. High voltage pin insulator is also used on distribution lines with the higher system voltage.

High voltage pin insulator drawings:
High voltage pin insulator drawings            High voltage pin insulator drawings

High voltage pin insulator drawingsHigh voltage pin insulator drawings
High voltage pin insulator specifications:

ANSI Class
56-1
Insulator Type
Plain
Radio Freed
Plain
Radio Freed
Neck Designation in accordance with ANSI C29.5
J
J
Voltage Rating (U.S.Practice) /KV
23
23
Leakage Distance/in (mm)
13(330)
13(330)
Dry Arcing Distance/in (mm)
7(178)
7(178)
Minimum Pin Height/in (mm)
6(152)
6(152)
Cantilever Strength/Average/lb (kN)
2,500(11)
2,500(11)
 
 
 
Average Flashover Voltage
 
Low-frequency
Dry/kV
95
95
Wet/kV
60
60
 
Critical-impulse
Positive/kV
150
150
Negative/kV
190
190
Low Frequency Puncture Voltage/Average/kV
130
130
Radio-Influence  Voltage Date
Test Voltage to Ground/kV
15
15
15
15
Maximum RIV at 1,000kHz/μV
8,000
100
8,000
100
Net Weight/lb
7.3
7.3

Surfaces coated with semi-conductive glaze are considered as effective leakage surfaces and the distance over them is included in the leakage distance.
The side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches. The top-wire groove shall seat a mandrel with a diameter of 1-3/4 inches.

ANSI Class
56-2
Fig. No.
1
2
Insulator Type
Plain
Radio Freed
Plain
Radio Freed
Neck Designation in accordance with ANSI C29.6
K
K
Voltage Rating (U.S.Practice) /KV
23
23
Leakage Distance/in (mm)
17(432)
17(432)
Dry Arcing Distance/in (mm)
8-1/4(210)
8-1/4(210)
Minimum Pin Height/in (mm)
7(178)
7(178)
Cantilever Strength/Average/lb (kN)
3,000(13)
3,000(13)
 
 
 
Average Flashover Voltage
Low-frequency
Dry/kV
110
110
Wet/kV
70
70
Critical-impulse
Positive/kV
175
175
Negative/kV
225
225
Low Frequency Puncture Voltage/Average/kV
145
145
Radio-Influence  Voltage Date
Test Voltage to Ground/kV
22
22
22
22
Maximum RIV at 1,000kHz/μV
12,000
100
12,000
100
Net Weight/lb
11
11

Surfaces coated with semi-conductive glaze are considered as effective leakage surfaces and the distance over them is included in the leakage distance.
The side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches. The top-wire groove shall seat a mandrel with a diameter of 1-7/16 inches.

ANSI Class
56-3
Fig. No.
1
2
Insulator Type
Plain
Radio Freed
Plain
Radio Freed
Neck Designation in accordance with ANSI C29.6
K
K
Voltage Rating (U.S.Practice) /KV
34.5
34.5
Leakage Distance/in (mm)
21(533)
21(533)
Dry Arcing Distance/in (mm)
9-1/2(241)
9-1/2(241)
Minimum Pin Height/in (mm)
8(203)
8(203)
Cantilever Strength/Average/lb (kN)
3,000(13)
3,000(13)
 
 
 
Average Flashover Voltage
Low-frequency
Dry/kV
125
125
Wet/kV
80
80
Critical-impulse
Positive/kV
200
200
Negative/kV
265
265
Low Frequency Puncture Voltage/Average/kV
165
165
Radio-Influence  Voltage Date
Test Voltage to Ground/kV
30
30
30
30
Maximum RIV at 1,000kHz/μV
16,000
200
16,000
200
Net Weight/lb
17
17

Surfaces coated with semi-conductive glaze are considered as effective leakage surfaces and the distance over them is included in the leakage distance.
The side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches. The top-wire groove shall seat a mandrel with a diameter of 1-7/16 inches.

Cat. No.
0401564
0401565
ANSI Class
56-4
56-5
Insulator Type
Plain
Radio Freed
Plain
Radio Freed
Leakage Distance/in (mm)
27(686)
34(864)
Dry Arcing Distance/in (mm)
11-1/4(286)
14(356)
Minimum Pin Height/in (mm)
10
12(305)
Cantilever Strength/Average/lb (kN)
3,000(13)
3,000(13)
 
 
 
Average Flashover Voltage
Low-frequency
Dry/kV
140
175
Wet/kV
95
125
Critical-impulse
Positive/kV
225
270
Negative/kV
310
340
Low Frequency Puncture Voltage/Average/kV
185
225
Radio-Influence  Voltage Date
Test Voltage to Ground/kV
30
30
44
44
Maximum RIV at 1,000kHz/μV
16,000
200
25,000
200
Net Weight/lb
24
30

Surfaces coated with semi-conductive glaze are considered as effective leakage surfaces and the distance over them is included in the leakage distance.
The side-wire groove shall seat a mandrel with a diameter of 1-1/16 inches. The top-wire groove shall seat a mandrel with a diameter of 1-7/16 inches.


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