Distribution transformer prefabricated connection line with closed insulating cover

Abstract

A distribution transformer prefabricated connection line with a closed insulating cover comprises a wire pole, the wire pole is provided with a drop-type switch, a lightning arrester and a transformer, the drop-type switch, the lightning arrester and the transformer are connected through a connection line body. The distribution transformer prefabricated connection line is characterized in that the connection line body comprises a main line copper tube, and a first plastic copper line penetrates into a main line copper tube, an electrical inspection grounding ring is connected with the side wall of the main line copper tube and comprises a grounding ring copper tube, the outer wall of the grounding ring copper tube and the outer wall of the main line copper tube are coated with a main line silicone rubber insulating layer, a bare electrical inspection grounding point is arranged on the lower portion of the electrical inspection grounding ring, one end of the first plastic copper line is connected with a first connection terminal which is connected with the drop-type switch, the outer wall of the portion, between the first connection terminal and the main line copper tube, of the first plastic copper line is coated with a first silicone rubber insulating layer, the other end of the first plastic copper line is connected with a second connection terminal which is connected with the transformer, the outer wall of the portion, between the second connection terminal and the main line copper tube, of the first plastic copper line is coated with a second silicone rubber insulating layer, the portion, located in the main line copper tube, of the first plastic copper line is a line core with a plastic wrapper stripped, the line core is connected with a core of a third plastic copper line, and the outer wall of the third plastic copper line is coated with a third silicone rubber insulating layer.

Description

technical field [0001] The invention relates to a connecting wire between a drop switch on a utility pole and a transformer, in particular to a prefabricated connecting wire for a distribution transformer with a closed insulating cover. Background technique [0002] The drop switch on the existing utility pole, the transformer and the lightning arrester are usually directly connected with ordinary connecting wires. Since the State Grid issued the requirements for the 10KV transformer station area, according to the typical design and installation of the national unified 10KV distribution transformer station area and the 10KV distribution Insulation requirements in the changing station area, ordinary connecting wires have poor insulation performance, and on-site installation and construction are troublesome. When workers puncture the wire clips when wiring, it is easy to cause wire damage after the contacts are not firmly connected to the ground, and there are great potential s...

AI Technical Summary

Problems solved by technology

[0002] The drop switch on the existing utility pole, the transformer and the lightning arrester are usually directly connected with ordinary connecting wires. Since the State Grid issued the requirements for the 10KV transformer station area, according to the typical design and installation of the national unified 10KV distribution transformer station area and the 10KV distribution Insulation requirements in the changing station area, ordinary connecting wires have poor insulation performance, on-site installation and construction are troublesome, when workers puncture the wire clamp when wiring, it is easy to cause the wire to be damaged after the contact is not firmly connected to the ground, and there are great potential safety hazards

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