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Help Center10 ~ 35kV Cold Shrink Cable Termination
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Product role
Suitable for 10 ~ 35kV single or multi-core XLPE insulated power cable from the connection, the role of sealing and insulation.
Features
1, reliable insulation: imported high elastic silicone rubber preform, always maintain the right radial pressure on the cable body accessories are installed, linked closely together, not for cable runs respiration and interface breakdown within the interface. Stress control part of the main insulation composite as a whole, to effectively solve the problem of electric cable outer shield the fracture stress concentration, to ensure that the insulation, the safe operation;
2, environmental adaptability: the product has a very strong anti-tracking and radiation resistance, excellent weather resistance, corrosion resistance, anti-foul, anti-aging advantages, suitable for high altitudes, cold areas, wet areas, salt fog areas heavily contaminated areas;
3, the selection of fit: the cold shrink structure, each specification is applicable to a variety of cable diameter; Easy to install: all products are factory preforms, install and operate, no special training, saving time and effort. The shrink Installation solve cable accessories contraction is not tight or loaded into the phenomenon, reducing the the quality accidents caused due to improper operation. Install without hot work, especially for the petroleum, chemical, mining, tunneling and other flammable places.
10 ~ 35kV cold shrink indoor (outer) terminal the mainly electrical performance parameters
| Rated voltage U0 / U kV | 8.7/15 | 26/35 | ||||
| Um kV maximum voltage | 17.5 | 24 | 40.5 | |||
| Creepage distance mm | ≥ 600 | ≥ 800 | ≥ 1256 | |||
| Type testing project | Standard requirements | Test results | ||||
| The 5min power frequency voltage test | 4.5U0 under flashover breakdown | Not flashover no breakdown | ||||
| 1min rain getting off work frequency voltage test | 4U0 under flashover breakdown | Not flashover no breakdown | ||||
| Partial discharge test at room temperature | 1.73U0 decentralization of power ≤ 10pC | ≤ 1.6pC | ||||
| Constant pressure cycle test of the air | 2.5U0 and conductor heated to 95 ~ 100 °C, a total of 3 cycles, flashover breakdown | Not flashover no breakdown | ||||
| High temperature partial discharge test | The cable conductor heated to 95 at 100 ° C ≤ 10pC, 1.73U0 decentralization of power | ≤ 1.6pC | ||||
| Partial discharge test at room temperature | 1.73U0 decentralization of power ≤ 10pC | ≤ 1.6pC | ||||
| High temperature impulse voltage test | 95 kV | 125 kV | 200 kV | Not flashover no breakdown | ||
| The cable conductor heated to 95 ~ 100 °C, 10 positive and negative polarity, flashover breakdown | ||||||
| Constant pressure cycle test | 2.5U0 and conductor heated to 95 ~ 100 °C, a total of 60 cycles, flashover breakdown | Not flashover no breakdown | ||||
| High temperature partial discharge test | The cable conductor heated to 95 at 100 ° C ≤ 10pC, 1.73U0 decentralization of power | ≤ 1.6pC | ||||
| Partial discharge test at room temperature | 1.73U0 decentralization of power ≤ 10pC | ≤ 1.6pC | ||||
| Impulse voltage test | 95 kV | 125 kV | 200 kV | Not flashover no breakdown | ||
| Positive and negative polarity 10 times each, not flashover breakdown | ||||||
| The 15min power frequency voltage test | 2.5U0 under flashover breakdown | Not flashover no breakdown | ||||
| The outdoor terminal salt spray test | 1.25U0, 1000h, no flashover without breakdown, no significant electrical corrosion and mechanical damage | Not flashover no breakdown | ||||
| Indoor terminal wet test | 1.25U0, 300h, no flashover without breakdown, no significant electrical corrosion and mechanical damage | Not flashover no breakdown | ||||
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