PVC insulated and sheathed power cable standard and parameter data
PVC insulated and sheathed power cable Execution standard XLPE insulated power cable performance conforms to GB12706.2-1991 equivalent IEC60502-1997, flame retardant performance conforms to GB12666.5-1990 equivalent IEC332-1992. (Not applicable to non-flame retardant cables) PVC insulated and sheathed power cable Use characteristics Use characteristics: the rated working voltage of the cable U0/U 0.6/1KV; Test voltage (duration ≤ 5min) 3.5KV; Cable […]
Control cable application scenarios and general parameters Part II
Control cable for intrinsically safe circuits This product has low capacitance and low inductance, has excellent shielding performance and interference performance, so the explosion-proof performance is superior to general computer cable and control cable. It is suitable for circuits such as distributed systems and automatic detection and control systems with explosion-proof requirements. The transmission line […]
Control cable application scenarios and general parameters
Main use and use characteristics Applicable to control, monitoring circuits and protection circuits with rated voltages up to and including 450/750V. The long-term allowable working temperature of cross-linked polyethylene (XLPE) insulated control cable does not exceed 90 °C. The long-term allowable working temperature of PVC insulated and polyethylene insulated control cable does not exceed 70 […]
Wire and cable products are mainly divided into five categories
1. Bare wire and bare conductor products The main features of this product are: pure conductor metal, no insulation and sheath layer, such as steel core aluminum stranded wire, copper-aluminum busbar, electric locomotive line, etc.; processing technology is mainly pressure processing, such as smelting, rolling, pulling System, stranding/tightening stranding, etc.; products are mainly used in suburbs, rural […]
Problems in the Production of Power Cables for Rail Transit
The pace of rail transit construction has accelerated, and the increase in mileage of railway operations has led to the expansion of demand for rail transit cables, and the demand for wires and cables has also increased. Due to the particularity of rail transit construction, higher requirements are placed on the technical level of safety and environmental protection […]
Wire and cable common sense question and answer
1. Why should a return line installed along the cable be installed in the grounding mode of the single-core cable sheath at one end? Answer: In the cable line grounded at one end of the metal sheath, in order to ensure that the induced voltage in the sheath does not exceed the allowable standard, a conductor laid along the […]
Be careful! Is your household wire expired!
What? ? ? The wire will also expire? ? ? Emmm… In the world where this wrap will expire, what else will not expire? General household wires have an expiration risk of being used under normal conditions for more than 10 years. Our common household wire is pvc housing wire, 2.5mm2 wire, 4mm2 wire, 6mm2 […]
Wire and cable applications
1. Power system The wire and cable products used in the power system mainly include overhead bare wires, bus bars (bus bars), power cables(plastic cables, oil-paper cables (substantially replaced by plastic power cables), rubber cables, overhead insulated cables), and branch cables. (Replaces some busbars), magnet wires, and electrical equipment, wire and cable for power equipment. 2. Information transmission system The […]
Aluminum alloy core aluminum stranded wire overall performance improvement skills
The rated breaking force of the wire is calculated from the strength of all aluminum single wires and reinforcements. However, the actual breaking force will be deviated from the actual calculated value. The main reason is that the strength of each single wire is not fully utilized. Therefore, when designing the product, not only must meet the minimum strength […]
What problems should be paid attention to during the construction of power cables?
Cable laying method The laying methods of the cable include direct burial laying, pipe laying, shallow groove laying, cable trench laying, cable tunnel laying, and overhead laying. In terms of skill comparison, cable tunneling methods and cable trenching methods are the best method of laying, as these two methods facilitate cable construction, maintenance and repair. […]