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Issues regarding the issuance of power outage permits for equipment maintenance

2015-06-01View Original

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During equipment maintenance, it is required by regulations to obtain a power outage permit for the maintenance work. I would like to ask fellow sailors: when applying for a \"Type 1 Work Permit for Substations\" for motors of 10KV and above, is the person in charge of the work an electrical technician or a maintenance worker? Here, we require that the maintenance personnel handle it, but the first type of work order is called a power-off work order, and it relates to electrical work; it seems to me that it should be handled by electrical specialists. Please explain in detail the procedures followed by your company in such cases.
Reply #22015-06-01
The person in charge of the work is an electrical technician, as it is they who carry out the operations of turning power on and off. 3.1.1 Filling out and issuing 1) Work orders shall be filled out either by the person in charge of the work or by the work order issuer, using a computer or manually, depending on the requirements of the work. It should be checked against the one-time wiring diagram when filling it out. When filling out work orders by hand, black or blue pens should be used; red pens or pencils are not permitted. The work order is issued in two copies; the information filled in must be correct, and the handwriting should be neat and clear. No alterations shall be made arbitrarily. Missing strokes that need to be added do not fall under the scope of revisions. If changes are required: For spelling mistakes, the correction should be made above the mistake, with two lines drawn beneath it. Missing character: Draw an “∧” symbol below the spot where the character is missing, and write the missing character above the “∧”. The scheduled power outage time, as well as the numbers of switches, disconnectors, and equipment, must not be altered; any alterations will render the original ticket invalid. Each work order may have no more than three revisions; otherwise, it must be filled out again. The completed work order must be reviewed by the work order issuer for accuracy and signed before it can be carried out.
Reply #32015-06-01
I think the same way, but the documents issued by the company are handled by the maintenance staff; in other words, the person responsible for the power outage is also the person in charge of equipment maintenance, as the power outage is carried out for the purpose of maintenance.
Reply #42015-06-01
This explanation is incorrect. Generally speaking, the purpose of work orders is to prevent risks; maintenance personnel usually know the site and the machinery well, but they don’t have much knowledge of electrical operations. Power must be cut off during maintenance work. From an electrical perspective, this task of turning power on and off is a single-type operation, and they must carry out it in accordance with the relevant procedures; this gives rise to the workers involved in this task as well as the persons responsible for it.
Reply #52015-06-01
Previously, electrical work and maintenance in the unit were both carried out in the same maintenance workshop; the electrical maintenance team responsible for the equipment was asked to handle the necessary procedures, including shutting down power supply, and sometimes it was also necessary to disconnect wires. Shift 1 of the process department is not involved in this, but different companies have different requirements; currently, the department in charge of the process is responsible for arranging for the power to be cut off and for handling the necessary paperwork.
Reply #62015-06-01
In our unit, regardless of the voltage level, whenever there is a power outage or interruption, it is the electrical department that is responsible. But the process team is responsible for making the contacts; there’s no need for mechanical repairs
Reply #72019-03-19
For those who do not have the qualifications to operate electrical systems, switching operations are carried out by electrical operators through power-on and power-off work orders
Reply #82019-03-19
If the person in charge of the work is a maintenance technician or a process engineer who does not have the qualifications to operate in electrical systems, the power-on and power-off operations must be carried out by an electrical operation supervisor through a power-on/power-off request form.

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