Electrical equipment maintenance site safety isolation method

Abstract

The invention discloses an electrical equipment maintenance site safety isolation method which comprises the following steps: (1) a production operator determines equipment needing to be powered off and gives a power failure application to an electrical equipment manager, and the electrical equipment manager carries out power outage and listing on the equipment according to the application, meanwhile, an energy isolation lock is arranged at the unique key node of the equipment, and a corresponding unique energy isolation key is given to the production operator; (2) the production operator places the energy isolation key in an energy isolation box and authorizes an overhaul operation authority and an isolation box locking authority to an overhaul team according to an overhaul task; (3) eachmaintenance team performs locking operation on the isolation box while receiving the maintenance task, and performs unlocking operation on the isolation box after the maintenance task is completed; and (4) the production operator takes out the energy isolation key after confirming that the energy isolation box is completely unlocked, and sends a power transmission request to the electrical equipment manager.

Description

technical field [0001] The invention relates to the technical field of electric equipment maintenance, in particular to a safety isolation method for electric equipment maintenance site. Background technique [0002] When the equipment of industrial and mining enterprises is overhauled, it is necessary to cut off all sources of energy (such as water, electricity, oil and gas, etc.) supplied to the overhauled equipment area to ensure the safety of the overhauled equipment and the overhaul team. Since the start / stop operation of the equipment and the maintenance of the equipment need to be completed by different professionals, and the maintenance of equipment in the same scope and in the same area will also involve different professional maintenance teams, improper coordination or negligent management in the work may cause It will cause energy to be wrongly transmitted to the maintenance area and maintenance equipment, and cause damage to the maintenance team or maintenance eq...

AI Technical Summary

Problems solved by technology

Although this method can achieve a certain maintenance isolation effect, it has certain limitations and is only suitable for short-term operations of a single maintenance team

[0004] When the same equipment requires multiple maintenance teams (different maintenance teams such as dynamic, static, electric, and instrument) to work cross-operated, production operators can only take the following two measures to achieve effective management of energy isolation keys: one way is in the equipment An energy isolation lock is placed on the key node position of the key node, and the energy isolation key is handed over to one of the maintenance teams for management according to the actual arrangement of the maintenance tasks. Once the production and operation personnel are negligent or the cross-operation organization of each maintenance team is not properly organized, it may lead to the accident of power transmission to the maintenance equipment by mistake, and there is a big potential safety hazard; Set up multiple energy isolation locks, and hand over the energy isolation keys one by one to the maintenance team corresponding to the maintenance task for management. This method involves more keys and is more difficult to control, and some equipment cannot be simultaneously The phenomenon of multiple locks has certain disadvantages

It can be seen that when there are multiple maintenance teams cross-operating on the same equipment, the safety isolation method of the traditional electrical equipment maintenance site has certain limitations, and it cannot effectively achieve energy isolation and orderly management

[0005] In addition, there are still the following problems in the safety isolation method of the traditional electrical equipment maintenance site: first, the on-site operation period of the maintenance team is uncertain. When the maintenance period is long and multiple shifts are required, the energy isolation key is easy to lose; Management measures mainly rely on the technical level and sense of responsibility of production operators, which are highly subjective and lack rigid constraints on management measures

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