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Purchasing must read: how to judge the quality of wire and cable

Purchasing must read: how to judge the quality of wire and cable

The quality of wire and cable is very important to the power system, and the insulation resistance, capacitance, loss factor, partial discharge and other indicators should be paid attention to when judging. High quality wire and cable copper core bright purple, small eccentricity, flexibility and high strength, and good flame retardant insulation. When purchasing, check that the packaging is complete and the logo is clear, compare the price and quality, and select compliant products to ensure the stable operation of the system and personal safety.

Oct 10,2024

Purchasing must read: how to judge the quality of wire and cable
How to choose the right wire and cable

How to choose the right wire and cable

Choosing the right wire and cable is a process that takes multiple factors into account. By specifying the purpose, determining the voltage level, calculating the current load, considering the environmental conditions and evaluating the mechanical performance, you can ensure that the selected cable meets the actual needs and has sufficient safety and reliability. The correct choice can not only improve the operating efficiency of the system, but also extend the service life of the cable and reduce maintenance costs.

Oct 08,2024

How to choose the right wire and cable
Three-phase four-wire system

Three-phase four-wire system

Three-phase four-wire production is an efficient and stable way of power transmission and distribution, which plays an important role in the fields of rail transit, industrial production and residential electricity. In the design and application, it is necessary to fully consider its characteristics, advantages and precautions to ensure the safety and reliability of the power supply system.

Sep 29,2024

Three-phase four-wire system
Detection method of power cable insulation performance

Detection method of power cable insulation performance

Power cable insulation performance testing is very important to the safety of power system, insulation performance testing mainly has the following aspects: insulation resistance test to assess moisture aging; withstand voltage test to test the insulation strength under high voltage; partial discharge measurement to capture small defects; aging test to assess long-term stability. The comprehensive application of these methods can comprehensively evaluate the cable insulation state and ensure the stable operation of the power system.

Sep 26,2024

Detection method of power cable insulation performance
Power cable fault detection method

Power cable fault detection method

Power cable fault detection methods are diverse, each has its own advantages and disadvantages. Infrared thermal imaging method quickly locates thermal faults; High frequency pulse reflection method is accurate and efficient, but its effect on high resistance faults is limited. Partial discharge detection method can warn potential faults and identify insulation aging in advance. Grounding resistance detection method monitors grounding faults to prevent fault expansion. Impact high voltage flashover test method is good at identifying high resistance faults, but requires professional operation. Intelligent detection method predicts cable condition through data analysis and reduces failure rate. In practical application, the fault type and site conditions should be comprehensively considered, and the flexible selection or combination methods should be used to ensure the timely and accurate solution of cable faults. In the future, cable fault detection will be more intelligent and efficient to ensure the stable operation of the power system.

Sep 24,2024

Power cable fault detection method
How to Choose a High-Quality Wire and Cable Manufacturer

How to Choose a High-Quality Wire and Cable Manufacturer

Choosing an electrical wire and cable manufacturer requires attention to its qualification certification, production process, product quality, technological research and development, and after-sales service. Hechang Electric (Zhaoqing) Co., Ltd., as a high-tech enterprise, has a 50,000-square-meter production base with an annual production capacity of 1 billion. It specializes in the research, development, and manufacturing of electrical wires and cables for multiple fields. It has won multiple honors, holds multiple patents and core technologies, breaks through foreign technical barriers, and its products have passed multiple international certifications, meeting environmental standards, providing customers with comprehensive solutions.

Sep 20,2024

How to Choose a High-Quality Wire and Cable Manufacturer
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