The continuous maximum conductor temperature for operation of the cable is 90°C.
The maximum short circuit (not more than 5s) temperature of the conductor is 250°C .
The permissive bending radius: if the cable is single core, it is 20 times bigger than outer diameter of the cable. If the cable is multiple core, it is 15 times bigger than the outer diameter of the cable.
It should be heated if the laying temperature is under 0°C.
Type and Application
copper core or Al. core XLPE insulated PVC sheathed power cable
Can be layed indoor and outer door. Can stand a certain tractive force for laying, but can not stand mechanical external force. It is forbidden for laying the cable in magnetic pipe.
copper core or Al. core XLPE insulated steel tape armoured PVC sheathed power cable
Suitable for laying underground, can stand mechanical external force, but can not stand strong tensile force
copper core or Al. core XLPE insulated steel wire armoured PVC sheathed power cable
Suitable for laying in water or palces with high disperation.Can stand mechanical external force, and a certain tensile force
- Q:Cable yjv-0.6 / 1kv-4 * 120 + 1 * 70 What does it mean?
- There is no difference between BTTZ25 square can only do single core. BTTZ is a kind of outer layer with seamless copper tube jacket, the middle filled with magnesia crystal powder as insulation material, the conductor is a single strand of copper rods composed of new cables, in recent years are also more used in high-rise buildings, airports, Underground railways and other places, to protect the fire in the case of fire pumps, fire elevators, local lighting, emergency evacuation instructions, security monitoring, anti-smoke system and self-powered power and other important equipment uninterrupted operation. The main features of the editor it has a high temperature, fire, explosion, no combustion (250 ℃ can be a long time running, 1000 ℃ limit state can also be 30min short time operation) and the current flow, small diameter, high mechanical strength , Long service life, generally do not need the characteristics of independent grounding wire. Application range Editor Widely used in nuclear power plants, metallurgy, chemical industry, mine, kiln and other dangerous, bad, high temperature environment. In recent years, more applications in high-rise buildings, airports, docks, subway and other places, to protect the fire in the case of fire pumps, fire elevators, local lighting, emergency evacuation instructions, security surveillance, anti-smoke system and self Power and other fire fighting and important equipment without interruption.
- Q:Wire yellow and green, respectively, that line of fire or zero line
- Insulated piercing clamp is mainly composed of reinforced shell, puncture blade, gasket, waterproof grease, high strength bolts, torque nut and cable terminal cap. When the cable needs to be branched or connected, the cable branch line terminal is inserted into the waterproof terminal Cap sets, to determine the main line branch position, with a socket wrench screw clamp on the torque nut, the process of contact with the blade will pierce the cable insulation, contact with the conductor, the sealing ring ring around the cable puncture position, the shell Grease overflow, when the torque reaches the set value, the nut torque mechanism off, the main line and branch line is connected, and waterproof performance and electrical effects to meet the standard requirements of the parameters. T-shaped terminal is composed of insulation base, wiring frame, fire shield composed of three parts, wiring box by the wire clip, screws, nuts and variable frame and other components, wiring clip and wire contact surface was wrapped in the shape of the dentoid staggered structure, With a large area of spinous process, pressure line reliable features. Through the different shapes of the wire combination of each other, can form a double connection, the lower access to the main line, the upper access to the branch line, the formation of continuous "T" -shaped connection, the product is a protective cover, especially suitable for cable trays and cable And other small places to use, can effectively prevent the suffering of the mouse on the line.
- Q:What is the meaning of "cable tray: 200 * 100 middle strip" in electrical engineering
- In addition to considering the security issues, there is no problem, you can use this, there is no impact on the charging situation, rest assured
- Q:What is the interface between the power interface and the hard disk?
- 10KV generally in the bottom, 380V power cable in the middle, control cable and cable at the top
- Q:What are the lines that need to be set up for notebooks?
- YJV cable is cross-linked polyethylene insulation, VV cable is PVC insulation, the former temperature level higher than the latter, such as the former conductor temperature can be 90 degrees, while the latter can only to 70 degrees!
- Q:What is the warranty period for wire and cable?
- General cable maintenance period is about 15 years, but to ensure that the normal use of the environment, such as the amount of temperature is below 70 degrees, but you are more than 70 working environment to use, of course, may not be used for a year. Therefore, the most important thing is to follow the instructions to use. Wire and cable recommended Ogilvy's.
- Q:What is the length of the wire that affects voltage and electricity
- When the cable is laid on the multi-layer bracket, the cables are arranged from top to bottom, the first layer is the high voltage cable, followed by the low voltage power cable. The control cable is placed on the lower part of the power cable. At the bottom of the instrument cable, when the low voltage power cable With the instrument cable in the same layer of laying, should be added partition isolation. Computer communication coaxial cable, full length are required to shield the use of closed trunking.
- Q:What is the difference between public relations firms and media companies?
- The width of the cable bridge international standard: cable bridge width ≤ 150 ~ 1.0150 800 ~ 2.2
- Q:How to determine whether the square of the cable is standard
- Depends on your number is not arranged in order, the general building room when the patch panel and the user board number is one to one correspondence
- Q:What is the power cable accessories used to do?
- When using power, standby power, basically no radiation, can be considered negligible
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Mid East 0.14%
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