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First of all, look at the color. The copper core is yellowish and reddish, indicating that the quality of the copper used is better, while the yellowish white is the reaction of low-quality copper. For aluminum core wires, regular ones must be shiny, shining silver-white light under the light, while ... Read More
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UNE 20460-3:1996 standard regulations about the cable usage under dverse environmental conditions, especially to what extent an electrical cable can be exposed to moisture. AD1 grade: The cable can be used in which the walls do not generally show traces of water, but can appear in small periods, for ... Read More
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The mechanical protective layer of armored cable can be added to the cable of any structure to increase the mechanical strength of the cable and improve the corrosion resistance. It is designed for the area prone to mechanical damage and corrosion. Armored cables are also divided into steel tape ... Read More
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Dear customer, Thanks for visiting our website. Thank you for you support all the way through. Here comes China's Lunar New Year Spring Festival. Kindly note we will be on holiday from January 15th(Sunday) to 27th(Friday). During holiday, we may have limit access to email and cannot give you quote ... Read More
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5. Remove the faulty lines or equipment from the power system so that the rest can continue to operate. 6. It is prohibited to pull the knife switch with load or close the grounding knife switch with power. The grounding wire shall be removed immediately after the line construction. In addition, the ... Read More
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Dear Sir/Madame, Happy New Year!!! Hope you and your family will be happy, healthy and all things will go smoothly in the New year. Your message is well received. But we are on New Year Holiday from December 31st(Saturday) to January 2nd(Monday). We will have limit access to email. We will get back ... Read More
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The commonly used methods of power cables and cables are mostly divided into underground direct burial or overhead. However, the small methods to prevent problems with overhead cables are as follows: 1. Do a good job of calculating the short-circuit current, correctly select and calibrate electrical ... Read More
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1. Different systems are used: DC cables are used in rectified DC transmission systems, and AC cables are often used in power frequency (domestic 50Hz) power systems. 2. Compared with AC cables, DC cables have less power loss during transmission. 3. High transmission efficiency and low line loss. 4. ... Read More
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The so-called "shielding" on the cable structure is essentially a measure to improve the electric field distribution. The cable conductor is made up of multiple wires twisted, and it is easy to form an air gap between it and the insulating layer. The surface of the conductor is not smooth, which ... Read More
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1. Ordinary flame-retardant wires and cables The insulating and sheathing materials of ordinary flame-retardant wires and cables are generally polymer materials containing halogen (or modified by adding halogen containing flame retardant). Polyvinyl chloride (PVC) is commonly used. Ordinary PVC ... Read More
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