Problems in power outage maintenance of electrical

Problems existing in power-off maintenance of electrical equipment in user's distribution substation

the general provisions of the safety work regulations for small and great enterprises and enterprises that are becoming "small and great enterprises" (electrical part of power plants and substations) (hereinafter referred to as "safety regulations") stipulate that not only the degree and lubrication of the table should be guaranteed: this procedure is applicable to the power generation, transformation, transmission, distribution All personnel working on rural power and users' electrical equipment (including infrastructure installation personnel). The work ticket system, work permit system, work supervision system, work interruption, transfer and termination system in the safety regulations are organizational measures to ensure the safety of workers on electrical equipment. Therefore, the power outage maintenance of the user's distribution substation should also strictly implement the provisions of the safety regulations and implement the organizational measures to ensure safety. However, with 90% high gloss, the person in charge of the power outage maintenance work of the user's distribution substation is the electronic universal testing machine, which is mainly used to measure the physical properties of materials or products. Who should be responsible for the work ticket issuer and the work permit? Who should perform the work permit procedures and complete the organizational measures to ensure safety

1 existing problems

with the rapid development of power construction and market economy, the aging and obsolescence of many user distribution substations that have been put into operation for a long time are relatively serious, and the power equipment with backward technical performance and low reliability needs overhaul or renewal. Because the power distribution substation needs to be cut off in whole or in part, the first type of work ticket needs to be filled in for such work according to the provisions of the safety regulations

since the property right of the electrical facilities and equipment of the user's distribution substation belongs to the user, the scope of daily maintenance management and management responsibilities, that is, the authority to take charge of the equipment, are also the responsibility of the user. Article 44 of the safety regulations stipulates that when the line, user maintenance team or infrastructure construction unit is working in the power plant or substation, the unit (power plant, substation or work area) must issue a work ticket and perform the work permit procedures

with the development of market economy, at present, most of the power outage maintenance work of user distribution substation is entrusted to the construction unit of the power department with compensation. As a result, when some user power distribution stations with small scale, weak technical strength of electrical personnel on duty or without maintenance for a long time work, there are many times that the electrical personnel of user power distribution stations refuse to issue work tickets, refuse to perform work permit procedures, and are only willing to complete switching operations such as power outage and power inspection according to the maintenance work needs and the requirements of the power construction unit, Thus, the work ticket system and work permit system of the power construction unit that accepts the entrusted maintenance work cannot be fulfilled, and some only fill in the safety construction measure ticket after taking the necessary safety technical protection measures; Some people are well aware of the interests and importance of implementing the work ticket system and work permit system, and the work permit is filled in and issued by the work leader and work permit issuer of the power construction unit. However, because the electrical personnel on duty in the user's power distribution substation refused to act as the work permit, the power outage maintenance work cannot perform the work permit procedures, making the filled work permit null and void and a mere formality

we know that the work ticket is the written certificate of work permit. From the work ticket, we can reflect the implementation of the work ticket system, work permit system, work interruption, transfer and termination system, the implementation of organizational and technical measures to ensure safety, as well as the safety performance of the person in charge of the work and the work permit. The power incoming conditions of the user's distribution substation are different: there are dual power incoming lines, single power supply but self-contained power supply, some are connected to the main through the column switch, disconnector or fall safety, and adopt overhead or cable incoming lines... It can be said that there are many factors for sudden calls at the maintenance work site. Therefore, the power construction unit's power outage maintenance work in the user's power distribution station is completely different from the new installation project of industrial expansion. Because there is no possibility of any sudden call at the current work site, the new installation project of industrial expansion can only fill in the safety measure ticket for construction, while the power outage maintenance work in the user's power distribution station does not implement the work ticket system and work permit system for construction, and the personal safety of construction personnel cannot be guaranteed at all