The BV line is abbreviated as a plastic copper wire and its name is: general purpose single-core hard conductor non-sheathed power cable.
BV is the abbreviation of BTV: B stands for category: cloth wire, T stands for conductor: copper conductor, V stands for insulation: polyvinyl chloride.
2. The purpose of the BV line is to apply to cables and wires for power devices, household appliances, meters and telecommunications equipment with AC voltage of 450/750V and below. Common insulated wires and household wires are the most commonly used wire types.
Characteristics of anti-acid, oil resistance, moisture, mold and other characteristics.
4, commonly used BV diameter commonly used bv diameter: 0.75 square, 1 square, 1.5 square, 2.5 square, 4 square, 6 square, 10 square, 16 square, 25 square, 35 square, 50 square, 70 square, 95 square, 120 squares, 150 squares, 185 squares, 240 squares, etc. Fittings: Wires for BVBVR lighting: 1 square to 1.5 square millimeters, 2.5 square millimeters for outlets, and no less than 4 square millimeters for air-conditioning lines. It is recommended 4 Square millimeters or more. The ground wire is a yellow-green two-color wire, and the switch wire is any one of red, yellow, blue, green, and black.
BVR line use: suitable for AC voltage 450/750V and below power devices, household appliances, instrumentation and telecommunications equipment with cables and wires. Such as the distribution box and other RV line uses: mainly used for household appliances cable SYV line Uses: for video surveillance lines, conference video and other electronic circuit erection, engineering decoration signal transmission, audio and video equipment, and other electronic devices, transmission of radio frequency signals.
RVB uses: Suitable for home appliances (audio, radio, etc.), small power tools, instrumentation and power lighting are also used for telephone lines.
ZR-RVS copper core PVC insulated stranded connection soft wire, twisted multi-stranded flexible wire, referred to as twisted pair. Flame-retardant twisted pairs are mostly used in the fire detector fire alarm system.
RVS PVC Insulated Flexible Cables: Used in field wiring, electrical instrumentation, telecommunication broadcasting, anti-theft alarm systems, building intercom systems, video surveillance systems, electronic equipment and automation devices.
SYV cable has a wide range of applications, involving electricity, construction, communications, manufacturing and other industries RVV, BVV sheathed cable difference RVV cable full name of light weight copper core PVC insulated PVC sheathed flexible cable, also known as light PVC sheathed cord, commonly known as soft sheathed cord, is a type of sheathing cord.
R: Represents the meaning of cord/soft structure V: PVC insulation V: PVC sheathed BVV cable full name Copper core PVC insulated PVC sheathed round sheathed wire, also known as light polyvinyl chloride sheath A set of cables, commonly known as hard sheathed wires, is a type of sheathing wire.
The BVV line is a single copper wire with a large internal cross-section, and the RVV has a single copper wire with a small cross-section.
For example, the sheath of 2*1.5 BVV core is a single copper wire, BVV has two cores, and each core has a cross section of 1.5, and each core is a copper wire with a diameter of 1.38. The RVV core is composed of many small filaments, RVV2 cores, each with a cross section of 1.5, but each core is composed of 30 copper wires with a diameter of 0.25 mm.
So BVV is harder than RVV.
Purpose The difference RVV is applied to the power lines, control lines and signal transmission lines of electrical appliances, instruments and electronic equipment and automatic generation devices. It can be used for control installation of anti-theft alarm systems, building intercom systems, instruments, meters, monitoring and control.
BVV hard sheath cable is suitable for cables and wires for power equipment, household appliances, instruments and telecommunication equipment with AC voltage of 450/750V and below. It is also used for surface mounted wires.
RVVP shielded cable 1. Introduce RVVP type copper core PVC insulated shielded PVC sheathed flexible cable with rated voltage of 300V/300V. The number of cores is divided by national standard from 2 cores to 24 cores, two or more cores are stranded, the outer strand is twisted in the right direction, and the soft round oxygen-free copper wire or tin-plated oxygen-free copper wire shield is used. Field circuit, electrical instrumentation, telecommunication broadcasting, anti-theft alarm systems, building intercom systems, video surveillance systems, electronic equipment and automation devices such as shielded lines.
KVV control cable 1, KVV PVC insulated cable Scope PVC insulated PVC sheathed control cable for rated voltage of 450/750V and below or 0.6/1kV and below for control, signal, protection and measurement system wiring purposes .
2. Use characteristics â— The power frequency rated voltage Uo/U is 450/750V or 0.6/1kV.
â— The maximum allowable working temperature of the cable conductor is 70Â°C.
â— The ambient temperature during cable laying should not be lower than 0Â°C. If the ambient temperature is lower than 0Â°C, preheat the cable.
â— The cable's recommended allowable bending radius is as follows:
Unarmoured cables shall not be less than 6 times the outer diameter of the cable;
Armored or copper-shielded cables shall not be less than 12 times the outer diameter of the cable;
The shielded flexible cable should not be less than 6 times the outer diameter of the cable.
Introduction to KVVP Control Cable for KVVP Shielded Control Cables: Copper core PVC insulated sheath braided shielded control cables are installed in indoor, cable trenches, pipelines, and other fixed applications where shielding is required. They are mostly suitable for areas with large signal interference.
Features: Rated voltage: U0/U is 450/750V
2. The maximum allowable working temperature of the conductor is 70Â°C. The ambient temperature during cable laying is not lower than 0Â°C. Permissible bending radius of cable: No armored layer and textile screened cable shall be not less than 6 times of the cable's outer diameter; Cables with armored or copper tape shielded structure shall not be less than 12 times of the cable's outer diameter 3. The vinyl sheathed steel tape armored control wires are laid indoors, in cable trenches, in pipelines and underground, and can withstand large mechanical external forces.
Scope of application: This product is suitable for transmission and distribution lines with rated voltage of 450/750V and below.
Implementation standards: GB9330-1988 and Q/SCT-J02.04-1999
Usage characteristics: The maximum rated temperature of the cable conductor is: PVC insulated cable is 70Â°C, cross-linked polyethylene insulated cable is 90Â°C. The ambient temperature at which the cable is laid is not lower than 0Â°C.
Control cable: implementation of the standard GB9330-88
The scope of application of control cables: Control cables are suitable for AC rated voltages up to and including 450/750V. Control, monitoring circuits, and protection circuit control cables. Use characteristics: 1. The long-term allowable operating temperature of the conductor is 70Â°C. 2, when laying the ambient temperature â‰¥ 0 Â°C. 3, the minimum bending radius: 4, no armored cable, should not be less than 6 times the cable diameter. 5, armored or copper belt screen structure of the cable, should not be less than 12 times the cable diameter. 6. The flexible cable with shielding structure shall not be less than 6 times of the outer diameter of the cable.
Uses: This product is used for electrical wiring and meter wiring in distribution equipment with rated voltage 500V or DC voltage 1000V and below.
HYA communication cable HYA is a copper core solid polyolefin insulation moisture-proof layer polyethylene sheathed local communication cable, mainly used for transmission of audio, analog signals of 150kHZ and below, and digital signals of 2048kbit/s and below. Under certain conditions, it can also be used to transmit digital signals above 2048 kbit/s. It is suitable for overhead or pipeline laying in the city, suburbs and local areas, and can also be buried directly.
Explanation 1. Product implementation standards: refer to YD/T630-93 standard of Post and Telecommunications Department and enterprise standard of Fenjinda 2. Single-annealed bare copper wire, diameter: 0.4mm0.5mm3, insulation material: high-density polyethylene or polypropylene, according to international Chromatograms indicate the color of the insulated wire. 4. Insulation pairs: single insulated wires are twisted into pairs at different pitches, and the specified chromatograms are combined to identify the first pair; mutual interference between pairs is reduced, and power is reduced. Less wear and loss 5. Jacket material: HYA copper core polyolefin insulated aluminum plastic composite sheath outdoor use indoor communication HYA application solid insulation non-filled cable applies to the local telecommunication network urban and township telecommunication lines, also applies to access public The private network line of the network. In the overhead installation, it is necessary to use a hanging wire to support. At -30Â°C to +60Â°C, the mechanical and electrical properties of the cable remain unchanged.
Cross-linked polyethylene insulated power cable has excellent thermal-mechanical properties, excellent electrical properties and chemical resistance, but also has the advantages of simple structure, light weight, laying without restrictions on the drop, it is widely used in urban power grids, mines And the factory's novel cable. Insulation-crosslinking polyethylene is a cross-linked polyethylene that converts linear molecular structure polyethylene into a three-dimensional network structure using chemical and physical methods, thereby greatly improving the thermomechanical properties of polyethylene, thereby maintaining Excellent electrical performance. The maximum rated operating temperature of the conductors of cross-linked polyethylene insulated power cables is 90Â°C, which is higher than that of PVC insulated and polyethylene insulated cables. Therefore, the cable's current carrying capacity is further improved.
Product performance standards:
GB/T12706.2-2008 Extruded Insulated Power Cables and Accessories Rated Voltage 1KV(Um=1.2KV) to 35KV(Um=1.2KV) IEC60502-2:2005 Extruded Insulated Power Cables and Accessories Rated Voltage 1~30KV :
Conductor maximum rated operating temperature 90 Â°C
Conductor short circuit temperature:
The maximum temperature must not exceed 250Â°C and the maximum time should not exceed 5 seconds.
Cable installation temperature not lower than 0Â°C
Laying in the air:
Ambient temperature 40Â°C
Laying in the soil:
Ambient temperature 25Â°C
Uses: Suitable for indoor and outdoor laying, can withstand a certain laying traction, but can not afford the role of external mechanical force
Sheath: PVC PVC
Standard: This product is produced according to GB12706 "rated voltage 35KV copper core, aluminum core plastic insulated power cable" standard.
Uses: Suitable for indoor, cable trenches, pipelines, tunnels, etc., can also be buried in loose soil, can not withstand the external force, generally the main road for the transmission of the circuit, the rated voltage for the power line transmission and distribution with the general rated voltage: ( U0/U)0.6/1---26/35kv
1. The maximum rated temperature of the cable conductor is 90Â°C. In case of a short circuit (maximum duration does not exceed 5S), the maximum temperature of the cable conductor does not exceed 250Â°C.
2. The ambient temperature when laying the cable should not be lower than 0 Â°C
3. Allow bending radius when laying: single-core cable is not less than 15 times of cable's outer diameter; multi-core cable is not less than 10 times of cable's outer diameter
Low-voltage cables are suitable for fixed laying on transmission and distribution lines with AC 50Hz and rated voltage of 3kV and below for transmission of electrical energy.
Model Name Main Use Copper core aluminum core YJVYJLV cross-linked polyethylene insulated PVC sheathed power cable laid in indoor, tunnels, cable trenches and pipelines, can also be buried in loose soil, the cable can withstand a certain laying traction YJV22YJLV22 Cross-linked polyethylene insulated steel tape armored PVC sheathed power cable is suitable for indoor, tunnel, cable trench and underground buried laying. The cable can withstand the mechanical external force, but can not withstand large tensile force 2. Use characteristics:
1 The highest rated temperature of the cable conductor is 90Â°C.
2 The maximum temperature of the cable conductor does not exceed 250Â°C in the event of a short circuit (maximum duration not exceeding 5 seconds)
Suitable for model test and power transmission in AC rated voltage 0.6/1kV and below, high temperature environment. It is especially suitable for the control and power transmission of the system protection circuit of fire protection and security systems.
1, long-term use of working temperature: 200 Â°C; short-term use of 1000 Â°C, 90 minutes 2, rated voltage Uo / U: 450/750V, 600/1000V
3, the minimum ambient temperature: fixed laying -60 Â°C, non-fixed laying -20 Â°C
4, the minimum bending radius: non-armored cable is not less than 10 times the cable diameter, armored cable is not less than 12 times the cable diameter.
SBH multi-core rubber cable <br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> Applications With the properties of electrical performance optimization, anti-aging, cold resistance, etc., can maintain good flexibility under low temperature conditions, some of which models have shielding.
In general, the "Ultra-five" line refers to the network cable that we usually talk about. It is used to construct weak cables and implement network and telephone information functions.
Commonly used wire and cable types for construction sites A. What types and types of wires and cables are commonly used in construction projects ?
Copper single wire, 60227IEC01 (BV), abbreviated as BV, has copper strands from 1 square to 150 square feet, which is more than one copper wire inside, said BVR is also a lot of specifications of aluminum single wire, BLV flower wire, RVS telephone wire , HTVV closed route, SYWV
B. What types of wires and cables are used on construction sites?
Multi-purpose rubber cable used for moving on site equipment: YZ, YC
From the main power distribution room to the external high voltage is generally the high-voltage cable purchased by the power and electricity department YJV
From the power distribution room to the main body of each building buried generally: YJV22 (electrical armored cable), YJV, YJLV;
What type of wire (BV) is generally used for C\ building renovation?
1.6 square millimeter copper core plastic wire; (power supply entry line)
2.4 square millimeter copper core plastic wire; (power supply entry line)
32.5 mm2 copper core plastic wire; (socket wire)
4.1.5 mm2 copper wire plastic wire. (lighting fixture line)
D. What type of wire is generally used in distribution cabinets?
Wire mesh filter cloth mainly refers to wire mesh products made with Dutch woven patterns. Anping Yahua Wire Mesh Co. is an expert in Woven Wire Mesh, especially custom and special type wire mesh filter cloth Dutch woven. Dutch Woven Wire Cloth can be further divided into mainly four types according to weaving patterns:
Wire Mesh Filter Cloth Dutch Plain Woven
Wire Mesh Filter Cloth Dutch Twill Woven
Wire Mesh Filter Cloth Reverse Dutch Woven
Wire Mesh Filter Cloth Five-Heddle Woven
Dutch Weave Mesh, Woven Wire Mesh, Twill Dutch Weave Wire Manufacturer in China
Anping Shengjia Hardware Mesh Co.,LTD , https://www.oilshaleshakerscreen.com