User blogs

The bending radius of the cable and its influence on the cable 1. What is the bending radius of the cable? Cables must be actively or passively subjected to bending during the manufacturing, transportation, and installation and construction processes. When the cable is bent, the degree of bending is directly related to the bending radius of the cable. 1. The bending radius of the cable: Normally, we regard the bent cable as an arc, and the radius of the circle where the arc is located is the bending radius of the cable in the bend... more

Precautions for installation of flame-retardant and fire-resistant cables The characteristics of flame-retardant and fire-resistant cables: have the function of self-extinguishing, and can maintain the normal operation of the electrical circuit for a period of time under burning conditions. Therefore, the installation of flame-retardant and fire-resistant cables can effectively control major disasters caused by cable fire and prolonged combustion, thereby improving the fire protection level of electric lines. So, what matters should... more

Classification of flame-retardant cables and flame-retardant grades A, B, and C 1. Definition and background Due to the frequent occurrence of electrical fires, people have put forward higher requirements for the safety of wires and cables. Flame-retardant cables refer to cables that can spread the flame within a certain range and have the function of self-extinguishing when an electrical fire occurs. The combustion of the cable is caused by the external heating to produce flammable gas. To realize the flame retardant of the cable... more

Five principles of circuit wiring in home decorationCircuit wiring is an important part of home decoration. The quality of home decoration circuit wiring directly affects our future life, and will also affect our future circuit maintenance and transformation. Do you know how home decoration circuit wiring should be implemented and what wiring principles should be followed?1. Principles of circuit design: walk on the top without walking on the ground, on the top without walking on the wall, and on the wall without walking on the groun... more

6 skills that must be mastered when laying outdoor cables The installation and construction of outdoor power cables is relatively difficult due to the complex terrain and numerous equipment and facilities in the urban area. In order to avoid problems such as cable abrasion, equipment damage, and personnel safety caused by construction, the following summarizes the 6 major techniques for laying outdoor power cables. 1. Before laying the cable, check whether the type and specification of the cable meet the design requirements: armore... more

Talking about the Causes and Preventive Measures of Electric Wire FireReasons for the wire fire:1. Short circuit: the phenomenon that the live wire and the live wire, and the live wire and the neutral wire are short-circuited on the electrical circuit. A short circuit can easily make the metal conductor instantaneously high temperature and cause the cable insulation material to catch fire. 2. Overload operation: Due to long-term overload operation, the operating temperature of the cable far exceeds the maximum allowable temperature ... more

The significance of measuring the insulation thickness of wires and cables1.Standard value: The insulation thickness specified in the wire and cable product standard is based on the applicable voltage level of the product, the size of the conductor cross-section, the size of the current carrying capacity, the environmental conditions used, the electrical properties of the insulation material, the physical and mechanical properties, and the long-term consideration Many factors of the service life are determined through scientific calc... more