Baicheng Tongyu pre-branch cable requires standard construction. What is the electrical main wiring? Have a serious attitude to do Baicheng Tongyu in the 110kV and above cable lines, the metal layer is composed of a metal sheath, which has the function of electric field and waterproof sealing, and It also has mechanical protection function. Word of mouth recommendation YJ: What are the common problems of Jincheng wire and cable inspection during cross-linked polyvinyl chloride insulation process? Wire and Cable Knowledge Encyclopedia 3 Among the 35kv and below power cable connectors, there are several types of Baicheng Tongyu pre-branch cable manufacturers and Baicheng Tongyu pre-branch cable manuals to improve the distribution of the electric field at the sheath break (please list the species) And briefly describe it. The development course simulates the emergence of high-line cables, HD-SDI cameras and other products. How is Baicheng Tongyu pre-branched cable used and what impact does it have on security cable companies? Baicheng Tongyu pre-branched cable requires standard construction. Meters = number of A × number of B × length of C × 14 wires such as plate BV 5: number of A: 12 pieces of B: 16 pieces of C length: 5 cm, that is, 0.165 meters, the length of this wire is : 12 × 16 × 0.165 × 14 = 9 47 meters error within 1 meter. For details, install the stress tube, and the part of the nozzle end of the sleeve is heat-shrinked after the butt is connected. Good quality
Baicheng Tongyu pre-branch cable requires standard construction. The dry-package type is to use high-voltage self-adhesive tape and electrical tape to wind the cable head. Generally, temporary electricity is used more often. Dry package type below 70mm2. 32: Thin steel wire armored BV wire, whether it is 185mm 240mm2 or steel core aluminum stranded wire (LGJ), is 800mm2 used in 750kV power transmission lines, also called wires. Answer: It can be divided into bare wires, insulated wires, heat-resistant wires, wires, power cables, cables, communication cables, radio frequency cables, etc. What are the cable accessories? Baicheng Tongyu is suitable for monitoring circuits and protection lines with a rated voltage of 450 / 750V and below. Construct the volume of copper and calculate the volume of the cylinder. Bottom area * height (ie the length of the wire). To calculate the area of a copper wire, the diameter of the copper wire must first be measured. The diameter of the copper wire is 772, so the area = (772 divided by the square * 14 = 46. Area. 46 * height 100 * copper specific gravity 0 .. 00 = 1 This is the weight of this coil of copper wire. According to the industry "Old driver" introduced that more than 90% of domestic cable companies have sold non-standard cables. There is nothing to say. Since 2014, a few companies have realized the seriousness of the problem, and have taken the initiative to change and started to adhere to standard products. This year, Xi'an Metro " "Cable problem" incident, its impact should be small. High-quality Weinan information transmission system The wires and cables used in the information transmission system are mainly local telephone cables, TV cables, electronic cables, radio frequency cables, fiber optic cables, data cables, electromagnetic wires, and electricity. Communication or other composite cables, etc. What are the major features and advantages of Baicheng Tongyu pre-branched cables that require the specification of the following accessories for heat shrinkable cable heads? Inspection item ZR-flame retardant
Baicheng Tongyu pre-branch cable requires standard construction. Answer: The device that connects the cable with the conductor, insulation and protection layer of the cable to connect the cable line is called the cable intermediate joint. The relevant knowledge about the potential development of ampacity of copper-core cable is introduced here. Copper-core cable is the thick black wire that everyone commonly sees. It is generally seen in the wild. Copper core cables are used to transport electric power over long distances. They are “pipes” for transmitting electric current from power plants or power plant transfer stations to residential quarters and villages. Where is the armoring layer? The metal armoring layer is wound around the inner lining layer. Generally, a double-layer galvanized steel strip armor is used. Its role is to protect the inside of the cable and prevent damage to the cable by mechanical external forces during construction and operation. It also has the function of ground protection. What should I pay attention to when using wire cutters? >>>> The meaning of the pinyin letters in the product model (without brackets). The quotation sheet simply states that the wire only has an insulation layer, and the cable has an insulation layer and a sheath layer. Cable product voltage: expressed as U0 / U (Um). For example; 6/10 kV, 7/10 kV, 21/35 (40. kV, 26/35 (40. kV, / 110 (12 kV. Where: U0: phase voltage; U: line voltage; Um: equipment can Large value of “high system voltage” (high voltage).