We are leading cable manufacturers since 1993. For more details you can visit our web https://zwcabl... View More
About Me
Who I'd Like to Meet
Cables and Wires
Richard zi
posted a blog.
YJV wire and cable
YJV wire and cable, that is, 0.6/1kv cross-linked polyethylene insulated polyvinyl chloride sheathed power cable. The product for the rated voltage (U0/U)0.6/1 ---26/35kv power lines for transmission and distribution, product standards for GB12706.3-91
Chinese name YJV wire and cable product standards for GB12706.3-91 requirements for the maximum rated temperature of the cable conductor 90 ° C laying method laid in the room
Technical requirements
Laying method editor Voice
1.YJVYJLV Copper (aluminum) core cross-linked polyethylene Laying indoors, in trenches and pipes, also can be buried in loose soil, but can not withstand pressure and mechanical external force.
2.YJV22 YJLV22 copper (aluminum) core cross-linked polyethylene insulated steel belt armored PVC sheathed power cable is laid underground and can withstand the action of mechanical external force, but cannot withstand large tensile force.
Technical Requirements Editor Voice
1. The maximum rated temperature of the cable conductor is 90°C. In the event of a short circuit (maximum duration not exceeding 5S), the maximum temperature of the cable conductor shall not exceed 250°C.
2. The ambient temperature when laying the cable should not be lower than 0°C
3. Allowable bending radius when laying: single-core cable is not less than 15 times the outer diameter of the cable; multi-core cable is not less than 10 times the outer diameter of the cable. If you want to know more cable details click this web https://zwcables.com/yjv-cable/
1 LIKED
1 person likes this.
Richard zi
posted a blog.
Armored cable is made of different material conductors packed in a metal sleeve with insulating material, which is processed into a solid combination that can be bent. Armored cable includes armored thermocouple, armored RTD, armored heater and armored lead, which are mainly used for temperature measurement, signal transmission and special heating in chemical industry, metallurgy, machinery manufacturing, power generation and scientific test, etc. The largest amount is armored thermocouple.
The armor is divided into steel belt armored (22, 23), fine steel wire armored (32, 33) and coarse steel wire armored (42, 43).
Steel belt armored cable models are VV22, VVP22, ZRVV22, NH-VV2.
Control cable steel belt armored cable, models KVV22, KVVP2, KVVP22, ZR-KVV22
Steel wire armored power cable cable, models VV32, YJV32, ZR-VV32
Steel wire armored control cable cable Model No. KVV32 KVVP32
Armored communication cable models: HYA53, HYAT53, HYA23, HYV22, HYA22 (rat-proof, buried)
Foreign armored cable production is mainly concentrated in a few more developed countries, such as the United States, Britain, Japan, Germany, Russia, Southeast Asia is still no manufacturer, but as long as there are chemical, metallurgical, machinery manufacturing, power generation and other industries where there is temperature measurement, you need armored cable. For more details you can visit click https://zwcables.com/steel-wire-armoured-cable/
1 person likes this.
Richard zi
posted a blog.
Control cables are PVC insulated, PVC sheathed control cables suitable for use in industrial and mining enterprises, energy and transportation sectors, for control and protection lines with a rated voltage of 450/750 volts or less.
Performance characteristics
1. DC resistance: 20℃, 0.4mm copper wire, less than or equal to 148Ω/km, 0.5mm copper wire, less than or equal to 95Ω/km.
2. Insulation electrical strength: between conductors 1min 1kv not breakdown conductors and shielding 1min 3kv not breakdown
3. Insulation resistance: each core and the rest of the core grounding, control cables greater than 10000MΩ.km, HYAT cable greater than 3000MΩ.km.
4. Working capacitance: average 52±2nF/km
5. Remote crosstalk defense degree: the average value of the power of the specified combination at 150kHZ is greater than 69dB/km.
Performance difference
Control cables are moisture-proof, anti-corrosion and damage-proof, and can be laid in tunnels or cable trenches. [1] Power cables are used to transmit and distribute high-power electrical energy in the main line of the power system, and control cables are used to transmit electrical energy directly from the distribution point of the power system to the power connection lines of various electrical equipment appliances. The rated voltage of power cables is generally 0.6/1kV and above, and control cables are mainly 450/750V. The insulation and sheath thickness of power cables are thicker than control cables when the same specifications of power cables and control cables are produced.
(a) Control cables belong to the electrical equipment with cables, and power cables are 2 of the five categories of cables.
(B) The standard for control cables is 9330, and the standard for power cables is GB12706.
(C) the color of the insulation core of the control cable is generally black printed white, and power cable low-voltage are generally color separation.
(D) the control cable cross-section is generally not more than 10 square, power cable is mainly to transmit power, generally large cross-section.
For the reasons we have mentioned above, the specifications of power cables can generally be larger, as large as 500 square (conventional manufacturers can produce the range), and then a larger cross-section can generally do relatively few manufacturers, while the control cable cross-section is generally smaller, the largest general not more than 10 square.
From the cable cores, power cables according to the requirements of the power grid, the most general 5 cores, while control cables for the transmission of control signals, the number of cores more, according to the standard more than 61 cores, but can also be produced according to user requirements.
Get more details from https://zwcables.com/control-cable/
1 person likes this.