What are the functions of cable terminations?
【Abstract】Remember that in the previous issues, we introduced the function of the cable terminal to you? Then in this article, let's talk about the role of cable terminals. Generally, cable terminals can be divided into heat shrinkable cable terminals and cold shrinkable cable terminals according to the raw materials, and can be divided into 1kv according to the withstand voltage rating. , 10kv, 35kv cable terminal. |
Remember that in the previous issues, we introduced the function of the cable terminal to you? Then in this article, let's talk about the role of cable terminals. Generally, cable terminals can be divided into heat shrinkable cable terminals and cold shrinkable cable terminals according to the raw materials, and can be divided into 1kv according to the withstand voltage rating. , 10kv, 35kv cable terminal.
First, let's talk about the function of the cable terminal, the cold and heat shrinkable cable terminal. The cold shrinkable cable terminal is made of silicone rubber material, which makes the cold shrinkable product easy to operate in construction through a series of processing techniques. , convenience, convenience and other features. The construction personnel only need to quietly extract the white plastic support bar in the tube during operation, and the cold shrinkable cable terminal will be tightly wrapped on the quilt object by its own high elasticity. Then it directly makes the entire cable run more safely.
Second, the heat-shrinkable cable terminal is not the same as the cold-shrinkable cable terminal. The heat-shrinkable cable terminal is made of PE, polyolefin and other raw materials. On the object, and then play the effect of insulation protection, anti-corrosion and anti-leakage on the quilt cover object.
The above briefly introduces the basic content of the cold and heat shrinkable cable terminal of the effect of the lower cable terminal. Next, let's talk about the specifications and models of the 1-35kv cold and heat shrinkable cable terminal of the effect of the lower cable terminal.
The applicable squares of 1kv and 10kv cold and heat shrinkable cable terminals are the same. For example, 1kv has 0#10-16mm2, 1#25-50mm2, 2#70-120mm2, 3#150-240mm2, 4#300-400mm2. 10kv has 1#25-50mm2, 2#70-120mm2, 3#150-240mm2, 4#300-400mm2. The difference between them is that the 1kv cold and heat shrinkable cable terminals have single core, two cores, three cores, four cores and five cores, while the 10kv cold and heat shrinkable cable terminals have single core (indoor/outdoor), three cores (indoor) /field).
In terms of specifications and models, the 10kv and 35kv cold and heat shrinkable cable terminals are consistent, but the applicable squares are inconsistent. The applicable squares of 35kv cold shrinkable cable terminals are 1#50-95mm2, 2#120-185mm2, 3#240-400mm2 ;The applicable square of 35kv heat shrinkable cable terminals are 1#50-120mm2, 2#150-240mm2, 3#300-500mm2.
The editor will focus on the low-voltage cold and heat shrinkable cable terminals here, which are classified as low-voltage cable terminals. They are not divided into indoor and outdoor, but 10kv and 35kv cold and heat-shrinkable cable terminals are high-voltage cable terminals. , is divided into indoor and outdoor. Because the cable is also divided into indoor and outdoor, with the difference, the effect of the cable terminal can be better displayed - to protect the stable, safe and continuous operation of the cable. The terminal is at the end of the power cable line. In addition to the effect of sealing the power cable, it can also improve the electric field at the end of the power cable so as to connect with other equipment or appliances (such as overhead lines, switches, etc.) for power transmission and transformation.
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