Warm Global Customers
With China Plastic Machinery
With China Plastic Machinery
YJ----cross-linked polyethylene insulation
V----polyvinyl chloride sheath
The name of the YJV cable model is: cross-linked polyethylene insulation polyvinyl chloride sheathed power cable
Cross-linked polyethylene insulation power cable has excellent thermal-mechanical properties, excellent electrical properties and chemical corrosion resistance, and also has the advantages of simple structure, light weight, and laying without drop restrictions. It is a novel cable currently widely used in urban power grids, mines and factories.
Cable insulation-cross-linked polyethylene is a cross-linked polyethylene with a linear molecular structure converted into a three-dimensional mesh structure by chemical and physical methods, thereby greatly improving the thermal mechanical properties of polyethylene, thereby maintaining excellent electrical properties.
The maximum rated operating temperature of the conductor of the cross-linked polyethylene insulated power cable is 90¡æ, which is higher than that of polyvinyl chloride insulated and polyethylene insulated cables, so the current carrying capacity of the cable is further improved.
GB/T12706.2-2008 Rated voltage 1KV (Um=1.2KV) to 35KV (Um=1.2KV) extruded insulated power cables and accessories
IEC60502-2:2005 Rated voltage 1~30KV extruded insulated power cables and accessories
GB/T10438-2004 "Cross-linked polyvinyl chloride insulated wires and cables with rated voltage below 450/750"
The maximum rated working temperature of the conductor is 90¡æ
The maximum temperature shall not exceed 250¡æ, and the maximum time shall not exceed 5 seconds.
The cable installation and laying temperature shall not be lower than 0¡æ
Laying in air: ambient temperature 40¡æ
Laying in soil: ambient temperature 25¡æ
Copper core or aluminum core cross-linked polyethylene insulated steel tape armored polyethylene sheathed power cable is suitable for indoor, tunnel, cable trench and underground direct burial. The cable can withstand mechanical external force, but cannot withstand large tension.
Copper core or aluminum core cross-linked polyethylene insulated fine steel wire armored PVC sheathed power cable
Copper core or aluminum core cross-linked polyethylene insulated fine steel wire armored polyethylene sheathed power cable is suitable for high drop areas and can withstand mechanical external force and considerable tension.
Copper core or aluminum core cross-linked polyethylene insulation thick steel wire armored PVC sheathed power cable
Copper core or aluminum core cross-linked polyethylene insulation thick steel wire armored polyethylene sheathed power cable is suitable for high drop areas and can withstand mechanical external forces and considerable tension.
The rated voltage of the cable is expressed by U0/U(Um): U0 is the rated power frequency voltage between the conductor designed for the cable to the ground or metal shield, U is the rated power frequency voltage between the conductors designed for the cable, and Um is the maximum value of the highest system voltage that the equipment can withstand.
According to the different laying environments and loads of the cables, the specifications and models of the cables are being designed and selected. The non-armored type is suitable for overhead, indoor, tunnel, cable trench and other occasions, and cannot withstand J mechanical external forces. The armored type can be directly buried underground except for the conditions applicable to the non-armored type. It can withstand certain mechanical external forces. Single-core cables are not allowed to be laid in magnetic pipes. Special types of cables should be selected for flammable and explosive, chemically corrosive, high temperature, low temperature and other occasions.
During storage, cables should be packaged in a standardized manner to avoid long-term exposure to sunlight in the open air. Both ends should be reliably sealed. They are not allowed to be stored in a humid environment for a long time, and the cable reels cannot be laid flat. The height of the reel should be considered and effectively fixed during transportation. Several reels are not allowed to be hoisted at the same time during hoisting, and it is strictly forbidden to push them down from a high place.
Special tools should be used for cable laying, such as pay-off racks, guide rollers, etc. Mechanical damage should be prevented during laying, and they should be kept away from heat sources.
When laying cables through pipes, the inner diameter of the pipe should not be less than 1.5 times the outer diameter of the cable. When multiple cables are laid through pipes, cable extrusion is prohibited, and the total area of the cables shall not exceed 40% of the total area of the pipe.
Product Standardstandard
This product is produced according to GB12706 "Rated Voltage 35KV Copper Core, Aluminum Core Plastic Insulated Power Cable" standard. At the same time, it can also be produced according to the International Electrotechnical Commission recommended standards IEC, British standards, German standards and American standards according to user needs.
This product is suitable for fixed laying in power frequency rated voltage 0.6/1KV and below distribution network or industrial equipment. Commonly used for overhead operations.
The rated UO/U of the power frequency is 0.6/1KV.
The maximum long-term operating temperature of the cable conductor is 90¡æ.
When short-circuited (the longest duration does not exceed 5s), the maximum temperature of the cable conductor does not exceed 250¡æ.
The ambient temperature should not be lower than 0¡æ when the cable is laid.
Cable bending radius: not less than 15 times the outer diameter of the cable.
Single core, 2 cores, 3 cores, 4 cores, 5 cores, 3+1, 3+2, 4+1, pre-branching cables, etc.
There is no strict classification based on voltage, but it is divided according to the generally accepted statement in the industry. According to the voltage used, yjv cables can be divided into
1KV and below are low voltage cables;
1KV~10KV are medium voltage cables;
10KV~35KV are high voltage cables;
35~220KV are ultra-high voltage cables.
If you are interested in our company and machine, feel free to contact our sales engineer. We will contact you as soon as possible.