I. Irradiated cross-linked power cable (voltage grade: 0.6/1KV;
Executive standard: GB/T12706.1-2002)
The irradiated crosslinked cable is to use high-energy rays to bombardment the hydrogen atoms in its molecular chain and then generate gaps in the molecular chain. The adjacent molecular chains are combined together to form the -C-C-crosslinking bond, forming a network of macromolecular three-dimensional structure and forming the crosslinked polyethylene.
Through after irradiation crosslinking polyethylene thermal properties can reach 105 degrees, irradiation etc physical crosslinking method, the intervention of crosslinking without water, the water content in its insulation is not greater than 100 PPM, insulation, high purity and irradiation crosslinking cable in electronic, mechanical properties has unique features, fine cable service life can reach 60 years, at the same time cable has light weight, simple structure, laying head without limit, etc.
YJV, YJLV irradiated XLPE insulated and PVC sheathed power cables
YJY, YJLY irradiated XLPE insulated and PE sheathed power cables
Irradiated XLPE insulated steel tape armoured PVC sheathed power cable
Irradiated XLPE insulated steel tape armoured PE sheathed power cables
Irradiated XLPE insulated fine steel wire armoured PVC sheathed power cables
Irradiated XLPE insulated fine steel wire armoured PE sheathed power cables
VV, VLV, VY, VLY, YJV, YJLV, YJY, YJLY are suitable for indoor and outdoor laying.
Can withstand certain laying traction, but can not withstand external mechanical force.
Single core cable is not allowed to be laid in magnetic conduit.
VV22, VLV22, VV23, VLV23, YJV22, YJLV22, YJV23, YJLV23 laid in indoor, tunnel, cable trench, can withstand a certain amount of external mechanical force, can not withstand excessive tension.
VV32, VLV32, VV33, VLV33, YJV32, YJLV32, YJLV32, YJV33, YJLV33 laid in indoor, tunnel, cable trench, can withstand a certain amount of external mechanical force.
Basic structure: conductor - XLPE insulation - inner sheath - steel tape armoring - PVC sheath
Irradiated cross-linked polyolefin (the main material is polyethylene) wire and cable are mainly used in heat-resistant building wire, automobile wire, aviation wire, locomotive wire and electrical motor wiring.
Two, medium voltage XLPE insulated power cable (voltage grade: 6/6KV-26/35KV;
Executive standard: GB/T12706.2-2002)
Medium voltage crosslinked polyethylene cable adopted all dry chemical cross-linking method using polyethylene molecules by linear into spatial reticulated structure, molecular structure of thermoplastic polyethylene into thermosetting crosslinking polyethylene, make its mechanical properties, heat aging properties and environmental stress can kydl_yyeliu force to a large extent, and has excellent electrical performance.
It has the characteristics of high normal operating temperature, simple structure, small outer diameter, light weight, easy to use and free from the limitation of laying drop.
Suitable for power distribution systems with rated power frequency voltage from 1 to 35 kV.
XLPE insulated double non magnetic metal tape armoured PVC sheathed power cable.
XLPE insulated double non magnetic metal tape armoured PE sheathed power cables.
Other models are similar to irradiated crosslinking (only the voltage is different)
YJV, YJLV, YJY and YJLY are suitable for indoor laying.
Can withstand certain laying traction, but can not withstand external mechanical force.
Single core cable is not allowed to be laid in magnetic conduit.
YJV22, YJLV22, YJV23, YJLV23 are laid indoors, in tunnels and in cable trenches. They can bear certain external mechanical force, but can not bear excessive pulling force.
YJV32, YJLV32, YJV33, YJLV33, YJLV33 is suitable for high drop areas, can withstand a certain amount of external mechanical force and considerable tension.
Single core cable YJV62, YJLV62, YJV63, YJLV63 used for AC loop shall be armored with non-magnetic materials.
Three, high voltage XLPE insulated power cable (voltage grade: 64/110KV, implementation standard: GB/T 11017-2002;
127/220 kv, 290/500 kv)
XLPE cables offer excellent gas performance, lower dielectric loss than both paper and PVC insulation, lower capacitance, and lower charging current and grounding fault current in systems without effective star grounding.
XLPE cable is easy to lay a major advantage, compared with other power cables, XLPE cable bending radius is smaller, light weight, terminal processing is simple, because XLPE cable does not contain oil, so there is no need to consider too much in the laying of line requirements, there is no oil can not be laid because of the situation.
XLPE cable can carry large current under normal operating temperature of 90 ° C, short-term failure of 130 ° C, and short circuit of 250 ° C.
YJVYJLV XLPE insulated PVC sheathed power cable
YJY, YJLY XLPE insulated and sheathed power cables
XLPE insulated wrinkled skin aluminum sheathed PVC sheathed power cable
XLPE insulated wrinkled skin aluminum sheathed polyethylene sheathed power cable
Cable structure: conductor - conductor shield - insulation - insulation shield - water barrier layer - metal shield - metal sheath - asphalt layer - sheath layer - graphite layer
Four, control cable (implementation standard: GB9330-88;
Voltage grade: 450/750V)
1, the product uses polyvinyl chloride or irradiated crosslinked polyethylene as the insulation layer, has excellent electrical conductivity, mechanical properties and chemical stability, suitable for rated voltage 0.6/1kV and below the control, monitoring circuit with protective lines and other protective occasions.
The permissible long-term operating temperature of the conductor of the cable is 70 degrees Celsius, and the permissible long-term operating temperature of the conductor of the irradiated XLPE cable is 90 degrees Celsius.
2, the cable laying temperature is not lower than 0 degrees;
3. It is recommended to allow the laying of bending radius: unarmored cable should not be less than 6 times the cable shape, with armored or shielding layer.
KVV, KYJV PVC insulated (irradiated XLPE insulated) PVC sheathed control cable
KVVP, KYJVP PVC insulated (irradiated XLPE insulated) PVC sheathed braided shielded control cable
KVVP22, KYJVP22 PVC insulated (irradiated XLPE insulated) PVC sheathed copper tape shielded control cable
KVV22, KYJV22 PVC insulated (irradiated XLPE insulated) PVC sheathed steel tape armored control cable
KVV32, KYJV32 PVC insulated (irradiated XLPE insulated) PVC sheathed fine steel wire armored control cable
KVVR, KYJVR PVC insulated (irradiated XLPE insulated) PVC sheathed control flexible cable
KVVRP, KYJVRP PVC insulated (irradiated XLPE insulated) PVC sheathed braided shielded control flexible cable
KVV and KYJV are laid indoors, in cable trenches, pipelines and other fixed occasions.
KVVP, KYJVP, KVVP2, KYJVP2 are laid indoors, in cable trenches, pipelines and other occasions where shielding is required
KVV22, KYJV22 for laying indoors, cable trenches, pipelines, direct buried and other fixed occasions can withstand greater external forces
KVV32, KYJV32 for laying indoor, cable trench, pipeline, shaft and other fixed occasions can bear large mechanical tension
KVVR, KYJVR laying in indoor mobile requirements of soft occasions
KVVRP, KYJVRP laying in indoor mobility requires soft, shielding and other occasions
Control cable is mainly used for: electrical appliances, instruments, distribution equipment signal transmission, control, measurement, etc
V. Computer cable (voltage level: 0.45/0.75KV, standard)
This product is used for the shielded cable connecting computer, testing instrument and control system instrument with rated AC voltage 300/500 and below. It is used for analog data transmission with high anti-interference performance.
1. The long term allowable workload of the cable shall not exceed 70 ℃.
2. The temperature of cable laying shall not be lower than 0 ℃.
3, the bending radius of the cable is not less than 10 times of the cable diameter.
DJYPV copper core polyethylene insulated, twisted copper wire braided shielding, PVC sheathed electronic computer cables
DJYP2V copper core polyethylene insulated, twisted copper tape shielded, PVC sheathed electronic computer cable
DJYP3V copper core polyethylene insulated, pair of twisted aluminum/plastic composite with shield, PVC sheathed electronic computer cable
DJYPV22 copper core polyethylene insulated, copper wire braided shielding, steel tape armoured, PVC sheathed electronic computer cable
DJYP2V22 copper core polyethylene insulated, twisted copper tape shielded, steel tape armoured, PVC sheathed electronic computer cable
DJYPVP2-22 Copper conductor polyethylene insulated, shielded to twisted copper tape, steel armored, PVC sheathed electronic computer cable
DJYPV structure: copper conductor core - polyethylene insulated - shielded connector, polyester film wrapped - copper tape or aluminum/plastic or copper wire braided shield - wrapped - PVC sleeve
VI. Overhead insulated cables (voltage grade: 0.6/1KV, 8.7/15KV, 26/35KV;
Execution criteria: three)
1. The product is used for power transmission and distribution in overhead power lines with rated power frequency voltage 35KV and below. The allowable working temperature of the conductor is 90 degrees.
2, the cable laying temperature is not lower than -20 degrees Celsius.
3. The bending radius should not be less than 12 times of the diameter of the cable when laying the cable.
Specific models are the following: 1KV: JKLYJ, JKYJ, JKLGYJ;
10 kv: JKLYJ;
10kV and 35kV: JKLYJ, JKLGYJ
Seven, aluminum strand and steel core aluminum strand (voltage grade: 0.6/1KV;
Executive standard: GB/T 1179-1999)
This product is suitable for outdoor overhead laying, used for power transmission and distribution of low, medium and high voltage lines. It has the advantages of light weight, high strength, corrosion resistance, and can be laid without limitation of drop range and withstand various environments.
Steel core aluminum strand: LGJ;
Scope of application: high voltage and ultra-high voltage, large force, large across transmission lines.
Aluminum strand: LJ;
Scope of application: general transmission and distribution lines with small force and small distance.
Eight, fireproof cable (voltage grade: 0.45/0.75, 0.6/1KV;
Executive standard: GB/T 19666-2005, GB/T12706.1-2002)
Fire-resistant cables are used in high-rise buildings, subways, power stations and some important places with fire protection characteristics of environmental occasions.
In addition to the power transmission under the rated working voltage of 0.6/1KV, it can also be safely operated for a certain period of time under the condition of combustion, and it can be safely operated for 3 hours under the condition of high temperature flame combustion of 950-1000 ℃, which greatly improves the safety factor of the use of fire-resistant cable and wins a certain time for fire rescue.
Scope of use:
1. The product is suitable for power transmission and distribution lines with rated voltage of 0.6/1KV.
2. Max. long-term operating temperature of the conductor shall be 70 ℃, and when short-circuit occurs (5S maximum duration), the maximum temperature of the cable shall not exceed 160 ℃.
3. The ambient temperature when laying the cable should not be less than 0 ℃, and the minimum bending radius should not be less than 12 times of the cable diameter.
NH-VV PVC insulated and sheathed refractory power cable
NH-VV22 PVC insulated and sheathed steel tape armoured refractory power cable
NH-YJV crosslinked polyethylene insulated and PVC sheathed fireproof power cable
NH-YJV22 XLPE insulated and PVC sheathed fireproof power cable with steel tape armour
NH-KVV, NH-KVV22, NH-BV and so on
Multi-core structure: conductor - refractory layer - insulation - filling - tape - inner sheath - armor - outer sheath
9. Low smoke and halogen-free cable (Executive standard: GB/T 19666-2005, GB 12706.1-2002)
Suitable for high-rise buildings, subway, power plant and important public places, in the case of a fire burning in the process of reducing smoke concentration, avoid the release of toxic gas, so that can make people suffocate yue from the smoke to spread, and also to prevent the harmful gas to some precision, fine instrument and the poison of human body, so as to avoid the second cable burns thousands of harm.
WDZA-YJE105, WDZA-YJLE105, XLPE insulated polyene vinyl sheathed flame retardant Class A power cable
XLPE insulated steel tape armoured PE sheathed Halogen-free flame retardant Class A power cables
Ten, wire cloth (voltage grade: 300/500V, 450/750V;
Executive standard: GB5023-1997)
Insulated wire can be divided into single wire and multiple wire according to the number of each wire, usually more than 6 square millimeters of insulated wire are multiple strands of wire, 6 square millimeters and the following of insulated wire can be single strand of wire, can also be multiple strands of wire, we put 6 square millimeters and the following of single strand of wire is called hard wire, multiple strands of wire is called soft wire.
Hard wires are denoted by "B" and soft wires by "R".
B series classification belongs to the wiring, so begin with BV is PVC PVC, namely (plastic) L is aluminum core code R is (soft), to do soft, is increasing the number of conductor wire and common insulating materials with polyvinyl chloride (PVC) and polyethylene, polyvinyl chloride (PVC) with "V", said the polyethylene with a "Y" said.
Insulated wires can be divided into single-core wires and multi-core wires according to the number of wires that are fixed together, and multi-core wires can also be fixed into multiple single-core wires in an insulating sheath.
Multiple core wires in the same sheath can be up to 24 cores.
Parallel multicore wires are denoted by "B" and twisted multicore wires by "S"