Ⅰ. Introduction to Cold Shrinkable Termination
Cold shrinkable terminations are components that use high elastomer materials (commonly used silicone rubber and ethylene-propylene rubber) to be injection vulcanized in the factory, then enlarged and lined with plastic spiral supports to form various cable accessories.
Medium Voltage cold shrinkable cable accessories products are suitable for 0.6/1kV PVC, XLPE, and EPR single-core, two-core, three-core, four-core, and five-core power cables. Cold shrinkable cable accessories have the advantages of small size, easy and rapid operation, no need for special tools, wide application range and few product specifications. Compared with heat-shrinkable cable accessories, it does not require fire heating and is widely used in various fields such as electric power, petrochemicals, metallurgy, railways, and port construction.
Ⅱ. Features of Cold Shrinkable Termination
High-Performance Material: Uses high-performance liquid silicone rubber, with great mechanical strength that fulfills different requirements for power cables.
Exceptional Weather Resistance: This product has strong UV resistance and weatherproof ability, keeping stable performances under severe outdoor conditions.
Outstanding Insulation Properties: It provides excellent insulation as well as corona resistance and tracking resistance; safe and reliable power transmission can be attained.
Built-in Stress Control: With a built-in stress control design, electric fields will be controlled to make the risks from field concentration reduced.
Ⅲ. Electrical Performance Parameters of Cold Shrinkable Termination
NKS-35kVLSO- | Items | Parameter |
Technical Parameters | Cable rated voltage | 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 | 25-630mm² |
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
Ⅳ. Selection Table for Cold Shrinkable Termination
| Product name | Nominal cross section (mm²) | Kit Code | Product Code |
3-core cold shrinkable outdoor termination | 35-70 | NKS-35kVLSI-3/1 | 96301SCI-SZ |
| 95-185 | NKS-35kVLSI-3/2 | 96302SCI-SZ |
| 240-400 | NKS-35kVLSI-3/3 | 96303SCI-SZ |
| 500-800 | NKS-35kVLSI-3/4 | 96304SCI-SZ |
Single core cold shrink outdoor termination | 35-70 | NKS-35kVLSI-1/1 | 96305SCI-SZ |
| 95-185 | NKS-35kVLSI-1/2 | 96306SCI-SZ |
| 240-400 | NKS-35kVLSI-1/3 | 96307SCI-SZ |
| 500-800 | NKS-35kVLSI-1/4 | 96308SCI-SZ |
