6kV~35kV cold shrink series joint
USD $15 - $1,000 /Piece
Min.Order:1 Piece
Changlan Electric Technology Co., Ltd.
materials of performance
No. | Item | Value | Testing standard | |
Insulation material | Semi-cond. material | |||
1 | Tensile strength MPa | ≥6.5 | ≥6 | GB528 |
2 | Elongation at break % | ≥600 | ≥600 | GB528 |
3 | Shore hardness A | ≤50 | ≤55 | GB531 |
4 | Tearing strength N/mm | ≥30 | ≥30 | GB/T530 |
5 | Volume resistivity Ω·cm | ≥1014 | ≤103 | GB692 |
6 | Dielectric constant(50Hz) | 2.8-3.5 |
| GB693 |
7 | Dielectric loss angle tangent | ≤0.005 |
| GB693 |
8 | The leakage resistance mark | ≥1A3.5 |
| GB6553 |
products electric performace:
Test items | Standard requirement | |||
8.7/10 8.7/15kV | 12/20kV | 18/20(30)kV | 26/35kV | |
Power frequency voltage test 5min | 39kV, no flashover and no breakdown | 54kV, no flashover and no breakdown | 81kV, no flashover and no breakdown | 117kV, no flashover and no breakdown |
Partial discharge test(room temperature) | 15kV, ≤10pC | 20kV, ≤10pC | 30kV, ≤10pC | 45kV, ≤10pC |
Impulse voltage test (95-100°C) | 95kV | 125kV | 170kV | 200kV |
Heating cable conductor to 95-100°C,each 10 times for positive and negative pole, no flashover and no breakdown | ||||
Constant pressure loading cycling voltage test (in air) | 23kV | 30kV | 45kV | 65kV |
Heating cable conductor to 95-100°C, 8h for each cycling include 5h for heating and 3h for cooling. Totally 3 circulation | ||||
High temperature partial discharge voltage under room temperature | 15kV | 20kV | 30kV | 45kV |
Heating cable conductor to 95-100°C, ≤10pC | ||||
Constant pressure loading cycling voltage test (in air) | 23kV | 30kV | 45kV | 65kV |
Heating cable conductor to 95-100°C, 8h for each cycling include 5h for heating and 3h for cooling. Totally 60 circulation | ||||
Note: for the cable joint, 30 circulation in water and 30 in air | ||||
High temperature partial discharge voltage under room temperature | 15kV | 20kV | 30kV | 45kV |
Heating cable conductor to 95-100°C, ≤10pC | ||||
Lighting impulse voltage test | 95kV | 125kV | 170kV | 200kV |
each 10 times for positive and negative pole, no flashover and no breakdown | ||||
15min AC voltage withstand test | 23kV, no flashover and no breakdown | 30kV, no flashover and no breakdown | 45kV, no flashover and no breakdown | 65kV, no flashover and no breakdown |
1min outdoor termination in rain power frequency voltage test | 35kV, no flashover and no breakdown | 48kV, no flashover and no breakdown | 72kV, no flashover and no breakdown | 104kV, no flashover and no breakdown |
Salt spray test for outdoor termination | 11kV, no flashover and no breakdown | 15kV, no flashover and no breakdown | 22.5kV, no flashover and no breakdown | 32.5kV, no flashover and no breakdown |
Salt spray test for indoor termination | 11kV, no flashover and no breakdown | 15kV, no flashover and no breakdown | 22.5kV, no flashover and no breakdown | 32.5kV, no flashover and no breakdown |
suitable range:
Our cold shrinkable series products are suitable for:
Rated voltage: 6/6kV,6/10kV, nominal cross section: 35-1600mm2
Rated voltage: 8.7/10kV,8.7/15kV, nominal cross section: 25-1600mm2
rated voltage: 12/20kV,18/20(30)kV, nominal cross section: 25-1600mm2
Rated voltage: 21/35kV,26/35kV, nominal cross section: 25-1400mm2
both for single core and three cores XLPE insulation and rubber insulation power cable
environment and conditions:
Environment pollution grade: IV pollution area
Insulation level,carrying capacity,long-term working temperature and short circuit temperature can meet the technical requirement of matching cable
standard:
IEC60502, GB/T12706
feature:
According to client’s requirement, we can provide: