The difference between cold shrinkable cable terminal head and heat shrinkable cable terminal head

Compared with the heat-shrinkable cable terminal, the cold-shrinkable cable terminal does not require heating, and

after installation, moving or bending will not cause the danger of internal layer separation like heat-shrinkable cable

accessories, because the cold-shrinkable cable terminal is elastically compressed Let’s take a look at the difference

between cold-shrinkable cable terminal and heat-shrinkable cable terminal and which one is better?

 

The difference

The price of heat-shrinkable and cold-shrinkable cable heads is relatively cheaper, and the operation is troublesome;

cold-shrinkable cable heads have higher technology content than heat-shrinkable cable heads. The high-voltage cables

of the internal cable network of the power supply bureau must use cold-shrinkable cable heads. General users have high

and low voltage. The cables are all heat-shrinkable cable heads. The more specific differences between the two, including

raw materials and technical parameters, are subject to the information provided by the manufacturer of the cable terminal.

In addition to the general market, the mineral insulated fire-resistant cable needs a dedicated cable terminal;

the parameters provided by the manufacturer are accurate .

Using cold shrinkage stress control tube, the voltage level is from 10kV to 35kV. The 1kV class adopts cold-shrinkable

insulating tube for reinforced insulation, and the 10kV class adopts cold-shrinkable insulation joints with inner and outer

semi-conductive shielding layers. Cold-shrinkable branch sleeves are used at the bifurcation of the three-core cable terminal.

The use of heat shrinkage is a key part of the quality of the heat shrinkable head. The heating tool can be a high-power hair

dryer or a blowtorch; it is best to put the cable upright before heating, which is conducive to the heating operation and

uniform shrinkage of the parts. Attention should be paid when heating:

①The heating shrinkage temperature is 110℃-120℃.

②Adjust the flame of the blowtorch to be yellow and soft, and beware of high-temperature blue flames.


Post time: Oct-29-2021