Hard combined mask for changing disconnector

Abstract

The invention discloses a hard combined mask for changing a disconnector. The hard combined mask comprises a disconnector isolation baffle plate, a disconnector pile head isolation baffle plate, an electrical pole mask, a moving contact mask and a cross arm mask. The hard combined mask for changing the disconnector has the advantages of high isolating property, high mechanical property, safety, reliability, portability, flexibility, and the capability of meeting requirements on live line work to achieve an expected goal. Compared with an insulating mat, the hard combined mask has obvious advantages in the aspects of safety, flexibility, simplicity, economical efficiency and the like.

Description

technical field [0001] The invention relates to a live working tool, in particular to a hard combined shield for replacing a knife switch. Background technique [0002] With the rapid economic growth, power users have higher and higher requirements for power supply reliability. Since distribution lines are directly facing power users, their safe and reliable power supply is closely related to the central work of power supply enterprises such as electricity sales and high-quality services. Therefore, it has become an inevitable trend for the development of power supply enterprises to carry out live distribution work and reduce the number and time of power outages. [0003] The isolation switch is a common electrical device in the power distribution network. It is mainly used to connect or isolate two sections of power lines to form or disconnect the electrical connection between the two. It is a device that must be operated when power transmission is stopped. The live repla...

AI Technical Summary

Problems solved by technology

[0004]1. Using insulating blankets for shielding, the human body must directly contact the electrified body or the grounding body, so that the distance between the operator and the adjacent electrified body is too small when shielding, which is not enough 0.4m (the minimum safe distance between the operator and the adjacent live body stipulated in the regulations), and there are many dangerous points in the operation

At the same time, in order to avoid touching adjacent charged objects, one must be careful when covering, and always pay attention to controlling the range of motion, thus distracting the attention of the workers and easily causing danger

[0005]2. Wrapped with insulating blanket, limited by the external shape of the equipment, the shielding effect is not good, there are many shielding steps, the operation procedure is complicated, and the work efficiency is very low

[0006]3. The whole operation takes a long time, about 90 minutes on average, and the operators need to consume a lot of physical strength

[0007]4. The outer layer of the insulating blanket is made of resin material, which rubs against metal parts and is easy to wear and tear, resulting in a decrease in insulation performance or even damage. At this time, the safety of operators will be threatened

[0008]2) The insulating blankets are all imported products, which are expensive

At the same time, the insulating blanket adopts a seamless production process, which cannot be recycled after damage, and can only be repurchased, resulting in a great waste of materials

[0009] At present, due to the lack of suitable tools and equipment, there are disadvantages such as complex operation procedures, many dangerous points, high labor intensity, and low work efficiency when replacing the isolation switch with power.

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