Precautions for the use of high and low voltage overhead insulated cables
Release time:
2021-11-12
With the rapid development of modern power industry, high and low voltage overhead insulated cables play an important role in power transmission. Due to its special operating environment, many matters need to be paid attention to when using high and low voltage overhead insulated cables to ensure the stable operation and safety of the power system.
Precautions for the use of high and low voltage overhead insulated cables
1. Introduction
With the rapid development of modern power industry, high and low voltage overhead insulated cables play an important role in power transmission. Due to its special operating environment, many matters need to be paid attention to when using high and low voltage overhead insulated cables to ensure the stable operation and safety of the power system.
2. cable selection
When selecting cables, the appropriate specifications, models and materials should be selected according to actual needs. At the same time, to ensure that the cable has excellent insulation performance, good wear resistance and aging resistance.
III. Installation and Laying
1. Inspection before installation: Before installation, the cable should be inspected in detail to ensure that it is free of damage, cracks and meets the specifications.
2. Environmental factors: consider environmental factors, such as climate, terrain, etc., and choose the appropriate installation method.
3. Laying requirements: cable laying should avoid excessive bending as much as possible to reduce the impact of mechanical stress on the cable.
IV. Operation and Maintenance
1. Monitoring: Regularly monitor the cable, including current, voltage, temperature, etc., to ensure that it operates within the normal range.
2. Insulation testing: regular insulation testing of the cable, in order to find potential insulation problems.
3. Protection: In lightning-prone areas, lightning protection devices should be installed to protect cables from lightning.
4. Inspection: strengthen the inspection, timely detection and treatment of cable external damage, corrosion and other issues.
5. Safety Precautions
1. High-voltage hazard: When overhead cables run under high voltage, nearby personnel should keep a safe distance to avoid electric shock accidents.
2. Prevent overload: avoid long-term overload operation of the cable, so as not to accelerate the aging of the insulation.
Fire prevention: open flames should be prohibited near the cable to prevent fire accidents.
4. Emergency response: the development of emergency plans, in the event of failure, the rapid start of emergency response, reduce losses.
VI. Summary
The use of high and low voltage overhead insulated cables involves many links, from selection, installation, operation to maintenance, each stage needs to strictly comply with relevant specifications and requirements. Only in this way can we ensure the safe and stable operation of the cable and provide a strong guarantee for power transmission. Practitioners in the power industry should attach great importance to continuously improve their professional skills to ensure the safety and stability of the power system.
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