Ring main unit cable chamber door arcing-resistant installation structure

Abstract

A ring main unit cable chamber door arcing-resistant installation structure comprises a ring main unit body. A grounding switch is installed in the cabinet body, a cable chamber is arranged below thegrounding switch, the grounding switch is provided with a grounding switch operation shaft, and the grounding switch operation shaft is coaxially and fixedly connected with a cam. The ring main unit body is also provided with a movable iron pin which can move vertically. The movable iron pin is driven by the cam to move vertically. A necking section is formed at the lower part of the movable ironpin. The upper edge of the door leaf is correspondingly provided with a first notch for embedding the necking section of the movable iron pin. The left side edge and the right side edge of the door leaf are respectively provided with a plurality of T-shaped hook nails, the front face of the left door frame and the front face of the right door frame are provided with clamping holes corresponding tothe hook nails, the ring main unit body is further provided with a fixed vertical fixing iron pin, and the upper edge of the door leaf is further correspondingly provided with a second notch allowingthe vertical fixing iron pin to be embedded therein. According to the invention, the door leaf can be prevented from being exploded open when an arcing accident occurs, and the operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to an arc-resistant installation structure for a cable chamber door of a ring network cabinet. Background technique [0002] The ring network cabinet is equipped with a grounding switch and a cable room, and the grounding switch is located above the cable room. The cable room is equipped with a door leaf and a door frame. The door frame includes an upper door frame, a lower door frame, a left door frame, and a right door frame according to the up, down, left, and right directions. The door leaf effectively isolates the operator from the high-voltage cables in the cable room to ensure the safety of personnel; the grounding switch is used for The reliable grounding of the primary line of the ring network cabinet ensures the safety of the maintenance operation process. [0003] In order to prevent the cable compartment door from being accidentally opened when ...

AI Technical Summary

Problems solved by technology

However, the above-mentioned strengthening structure has the following disadvantages: 1. It is very troublesome to open the door leaf, and a lot of bolts need to be unscrewed, and special dismounting tools are needed; When closing the door leaf, not all the bolts are screwed on; 3. The bolts are easy to lose, and the exposed bolt heads affect the appearance

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