1. What are the requirements for fire blocking of cable holes? Answer: For larger cable penetration holes, such as the cable penetration floor, when using fireproof blocking materials to block, according to the actual situation, first apply four to six layers of fireproof paint on the cable surface, the length is about 1.5m below the … Read more
On February 26, the first domestic pre-qualification test of 525 kV DC cables was officially launched. The test mainly detects the long-term performance of domestic 525 kV DC cables, and provides important technical support for Chinese cable companies to take the initiative in international competition. It is understood that the Dutch government plans to develop … Read more
Power cables bring light to the home, add all kinds of fun to life and meet the needs of family life. However, if negligence in the process of wire installation, it is easy to cause various hidden dangers in the home environment. Misunderstanding 3: The wires are buried directly without casing Some irresponsible construction workers … Read more
Power cables bring light to the home, add all kinds of fun to life and meet the needs of family life. However, if negligence in the process of wire installation, it is easy to cause various hidden dangers in the home environment. Misunderstanding 1: Strong and weak electricity sharing AC power is usually used in … Read more
Everyone knows that everything will deteriorate after being used for a long time, and the same goes for wires. WhenAerial Bundled Cable (ABC) HD 626 S1 Standard is aging for household or commercial use, it is easy to cause danger if it continues to be used, and timely inspection can eliminate potential safety hazards. But … Read more
In recent years, various types of electrical appliances often catch fire in our daily lives. Therefore, when using electrical appliances, the cables need to be protected. However, I don’t know if you find that the cable will heat up during operation. Is it a manifestation ofAerial Bundled Cable (ABC) HD 626 S1 Standardquality problems? Or … Read more
(1 )Overview Low-voltage cables have many specifications and models. Take indoor PVC insulated PVC sheath below 1KV as an example to illustrate the production of power cable terminal cable heads. (2) Construction process Measure the grounding resistance → strip the cable end → wrap the cable and sheath the terminal end of the aerial bundled … Read more
Due to the increase of wires and cables, the concentration of laying, the poor quality of construction, etc., the danger of wire and cable fires has increased. Therefore, to prevent aerial bundled cable astm b231 fires in actual engineering applications, it is necessary to start with controlling dangerous factors, apply relevant regulations, and take corresponding … Read more
Before moving into a new house, everyone will check the house first, but most citizens will focus on the structure of the house, and they rarely care about the wires inside the walls. If the house is compared to a person, then the wires hidden in the walls are the vital “arteries”. The wires for … Read more
Copper core cables have more advantages than aluminum core cables: 1. Low resistivity: the resistivity of aluminum core aerial bundled cable BS 7870 is about 1.68 times higher than that of copper core cable. 2. Good ductility: the ductility of copper alloy is 20-40%, the ductility of electrical copper is more than 30%, while aluminum … Read more