Electrical insulation papers

Cable insulation paper
GOST 23436-83

Grade: (GOST) К и КМ with weight from 80 till 170 gr / m2.

К – double-ply paper (К-80, К-120, К-170);

КМ – multiply (КМ-80, КМ-100, КМ-120, КМ-140, КМ-170).

Description:used for insulation of power cables with voltage up to 35 kV including, for insulation of exchange cables and winding wires, for different electro insulation parts.

Technical specification К – double-ply paper:

Parameters К-080 К-120 К-170
Thickness, µm
80±5
120±7
170±7
Density, gr / cm3
0,78±0,05
0,78±0,05
0,78±0,05
Destructive force, kgf, minimum
- in machine direction
- in transverse direction
8,5
4,0
13,0
6,0
17,5
8,5
Specific elongation, %, minimum
- in machine direction
- in transverse direction
1,8
4,5
13,0
6,0
2,0
4,5
Air permeability, mL/min, maximum
40
40
40
Ash mass content, %, maximum
1,0
1,0
1,0
Conductivity of aqueous extract,
not more: at the scale 1:50, µS/m
60
60
60
рН of aqueous extract
7,0-9,0
7,0-9,0
7,0-9,0
Humidity, %,
4,0-8,0
н/б 8,0
н/б 8,0

Technical specification КМ – multiply:

Parameters КM-080 КM-120 КM-140КM-170
Thickness, µm
80±5
120±7
140±7170±7
Density, gr / cm3
0,78±0,05
0,78±0,05
0,78±0,050,78±0,05
Destructive force, kgf, minimum
- in machine direction
- in transverse direction
8,5
4,0
14,5
6,5
16,0
7,5		19,0
9,5
Specific elongation, %, minimum
- in machine direction
- in transverse direction
2,0
5,0
13,0
6,0
2,4
6,5		2,2
6,5
Air permeability, mL/min, maximum
40
40
4040
Ash mass content, %, maximum
0,60
0,60
0,600,60
Conductivity of aqueous extract,
not more: at the scale 1:50, µS/m
60
60
6060
рН of aqueous extract
7,0-9,0
7,0-9,0
7,0-9,07,0-9,0
Humidity, %,
8,0
8,0
8,08,0

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