Pre-molded cable joint product introduction:
Pre-molded cable joint are inlaid with stress control parts in the insulation body in advance in the factory production, no interface exists, through the stress control parts to effectively solve the problem of stress concentration at the cable shield cut. Using silicon rubber high resilience, high temperature resistance and strong aging resistance, and cable insulation to adopt interference combined design. This ensures that the interface between cable insulation and accessories is closely combined without internal creepage. In order to meet the four types of pollution environment, and design the external insulation of the accessories. 35kV prefabricated cold shrinkage power cable accessories are suitable for the connection of 21/35kV,26/35kV single/three core XLPE power cable.
Product execution standards: IEC60502.4, GB/T12706.4
Pre-molded cable joint product features:
It is made from high-performance liquid silicone rubber
High mechanical strength, suitable for a variety of power cables
Strong UV resistance and strong weather resistance
Has excellent insulation properties, corona resistance and tracking resistance
Simple design and reasonable structure
Built-in stress control, uniform electric field distribution
Suitable for copper and aluminum cables
Suitable for crimp lugs and mechanical lugs
Quick assembly and simple installation
Electrical performance parameters of Pre-molded cable joint :
NKS-36kVYZJ- | Items | Parameter |
Technical Parameters | Cable rated voltage | 21/35kV,26/35kV |
| Frequency withstand voltage(AC) | 117kV/5min |
Partial Discharge | 45kV＜10pC |
Impulse voltage | 200kV |
| Heating cycles test in air | 65kV, 60 cycles in total |
Applicable cable cross section | 50-500mm² |
The product has passed the inspection and certification of the China Electric Power Research Institute (CEPRI) Power Industry Electrical Equipment Quality Inspection and Testing Center
Type test reference standard: IEC 60502-4:2010 GB/T 12706.4-2008
Selection table for Pre-molded cable joint :
| Product name | Nominal cross section (mm²) | Kit Code |
3-core pre-molded cable joint | 50 | NKS-36kVYZJ-3/1 |
| 70 | NKS-36kVYZJ-3/2 |
| 95 | NKS-36kVYZJ-3/3 |
| 120 | NKS-36kVYZJ-3/4 |
| 150 | NKS-36kVYZJ-3/5 |
| 185 | NKS-36kVYZJ-3/6 |
| 240 | NKS-36kVYZJ-3/7 |
| 300 | NKS-36kVYZJ-3/8 |
| 400 | NKS-36kVYZJ-3/9 |
| 500 | NKS-36kVYZJ-3/10 |
Single core pre-molded cable joint | 50 | NKS-36kVYZJ-1/1 |
| 70 | NKS-36kVYZJ-1/2 |
| 95 | NKS-36kVYZJ-1/3 |
| 120 | NKS-36kVYZJ-1/4 |
| 150 | NKS-36kVYZJ-1/5 |
| 185 | NKS-36kVYZJ-1/6 |
| 240 | NKS-36kVYZJ-1/7 |
| 300 | NKS-36kVYZJ-1/8 |
| 400 | NKS-36kVYZJ-1/9 |
| 500 | NKS-36kVYZJ-1/10 |
