Insulation protective device of flexible cable middle quick coupling

Abstract

The invention discloses an insulation protective device of a flexible cable middle quick coupling. The insulation protective device comprises an insulation base, a plurality of insulation fixing plates, an insulation cable seat and an insulation upper cover, wherein the insulation cable seat is made of flexible silicone rubber, and a plurality of linear slots which are opened on the top surface and penetrate the front and back are formed on the insulation cable, and the linear slots are independent from each other, a partition is arranged between two side walls of each linear slot, and a discharging gap is formed in each linear slot through the partition; the insulation upper cover is sleeved on the insulation cable seat; the insulation cable seat, the insulation base and the insulation fixing plate are in plugging fixation through the slots. The insulation protective device disclosed by the invention can realize six protective functions: high-temperature resistance, slippage preventing, land lost preventing, short-circuit preventing, flooding safety, and abrasion resistance, and the volume of the device is further reduced through the structural design; the insulation protective device is lighter and more convenient, easy to convey and saves the cost.

Description

technical field [0001] The invention relates to the field of distribution network load transfer power supply, in particular to an insulation protection device for a quick joint in the middle of a flexible cable. Background technique [0002] Since 2014, the domestic 10kV (0.4kV) distribution network load-to-power supply field has achieved great innovation and development through the use of flexible cable work tools, and has developed a variety of work tools, among which flexible cable intermediate quick connectors It is an important tool for quickly connecting flexible cables. Due to the reliability of its connection, it is easy to cause the middle quick connector to heat up, and the existence of discharge gaps will cause ground loss, short circuit and other equipment failures, which will affect the safety of the power grid and personal injury, causing adverse social impact. [0003] In response to this potential safety hazard, different types of protective box devices for t...

AI Technical Summary

Problems solved by technology

[0002] Since 2014, the domestic 10kV (0.4kV) distribution network load-to-power supply field has achieved great innovation and development through the use of flexible cable work tools, and has developed a variety of work tools, among which flexible cable intermediate quick connectors It is an important tool for quickly connecting flexible cables. Due to the reliability of its connection, it is easy to cause the middle quick connector to heat up, and the existence of discharge gaps will cause ground loss, short circuit and other equipment failures, which will affect the safety of the power grid and personal injury, causing adverse social impacts

The existing protective box device has the following problems: 1. It is made of hard epoxy resin material, its heat resistance is average, the temperature resistance does not exceed 100 degrees Celsius, and its adhesion is low. The quick connector in the middle of the protected flexible cable is easy to slip and slip away. Loss of protective effect; 2. The single-slot protection box shared by the middle quick joint of the three-phase flexible cable failed to effectively prevent the phase-to-phase short circuit fault. The required protection box is bulky, heavy, expensive, and difficult to carry; 3. The epoxy resin board is directly insulated from the ground, which is easy to wear and tear, and it is easy to cause discharge to the ground and short circuit of water ingress; 4. Unreasonable structural settings lead to Large volume, difficult to assemble and use

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