Insulators are designed to fix and insulate wires of power transmission lines with the nominal voltage 20 kV, frequency up to 100 Hz with the air temperature from - 60 to + 50 оС. Insulators are designed to fix and insulate wires of power transmission lines with the nominal voltage 20 kV, frequency up to 100 Hz with the air temperature from - 60 to + 50 оС.
Insulators conform to the requirements of IEC 61109.
Designation
|
Fig.
|
Rated voltage, kV
|
Maximum working voltage, kV
|
Minimum mechanical failing load, kN
|
Spacing, Н,
mm, max
|
Insulation spacing, L,
mm, min
|
Creepage distance,
mm, min
|
Withstand
voltage, kV
|
Weight,
kg, max
|
IEC 61466-1
|
GOST R 55189
|
full lightning impulse
|
dry power-frequency
|
wet power-frequency
|
CS 70-215/710*
|
ЛК 70/20-И-2
|
1
|
20
|
24
|
70
|
405
|
285
|
710
|
215
|
105
|
65
|
1,0
|
CS 70-215/715
|
ЛК 70/20-И-3
|
2
|
430
|
310
|
715
|
1,1
|
CS 70-215/800
|
ЛК 70/20-И-4
|
3
|
800
|
1,2
|
CS 70-275/880
|
ЛК 70/20-ИГ-6
|
4
|
480
|
360
|
880
|
275
|
130
|
110
|
1,56
|
CS 120-215/710
|
ЛК 120/20-И-2
|
1
|
120
|
430
|
285
|
710
|
215
|
105
|
65
|
1,3
|
CS 120-215/715
|
ЛК 120/20-И-3
|
2
|
455
|
310
|
715
|
1,4
|
CS 120-215/800
|
ЛК 120/20-И-4
|
3
|
800
|
1,5
|
CS 120-275/880
|
ЛК 120/20-ИГ-6
|
4
|
505
|
360
|
880
|
275
|
130
|
110
|
1,75
|
* — There are four types of insulators classified by the end fitting types: TB, SB, ST, TT. Other end fittings are available by a special request.
|