One, Purpose Code - Not marked as power cable, K for control cable, P for signal cable.
Insulation Codes - Z Oil-impregnated Paper, X Rubber, V Polyvinyl Chloride, YJ Cross-linked Poly
III. Conductor Material Code - Not marked indicates copper, L for aluminum.
Four, Inner Sheath Code - Q Lead Coated, L Aluminum Coated, H Rubber Sheathed, V Polyvinyl Chloride Sheathed
Five, Derived Code - D for no drip, P for dry insulation.
Section 6: External Sheath Code
Section 7: Special Product Codes - TH Wet Tropical, TA Dry Tropical
Section 8: Rated Voltage - Unit: KV; Inquiry Regarding Cable Models
1. SYV: Solid Dielectric Radio Frequency Coaxial Cable
2. Physical foam polyethylene insulated coaxial cable for CATV systems, video (radio frequency) coaxial cables (SYV, SYWV, SYFV) are suitable for closed-circuit monitoring and cable television projects, including SYWV(Y), SYKV cable television, and broadband networks.
Cable Structure: Single oxygen-free round copper wire, Physical Foam Poly (Insulation), Tin wire/Aluminum, Poly (Poly)
3. Signal Control Cables (RVV jacketed wire, RVVP shielded wire) are suitable for projects such as intercom systems, anti-theft alarms, fire protection, and automatic meter reading. RVVP: Copper-core insulated shielded poly jacketed soft cable, Voltage: 300V/300V2-24 cores, Applications: instruments, meters, intercom, monitoring, control installations.
4. RG: Physical Foam Insulated Submarine Cables for Data and Analog Signal Transmission in Coaxial Fiber Hybrid Networks (HFC)
5. KVVP: Shielded Cabled Braid Sheath for Electrical and Instrumentation Applications - Used for signal transmission, control, and measurement in electrical appliances, instruments, and distribution equipment.
6. RVV (227 IEC 52/53) Poly-insulated Soft Cable | Applications: Household appliances, small electrical tools, instruments, and power lighting
7. AVVR Sheathed Soft Cable for AVVR Jacket Installation
8. SBVV HYA Data Communication Cables (for indoor and outdoor use) for connecting telecommunication and radio equipment, as well as for wiring distribution boxes in telephone networks.
9. RV, RVP Insulated Cables
10. RVS, RVB cables are suitable for home appliances, small electric tools, instruments, meters, and power lighting connections.
11. BV, BVR Insulated Cables - Application: Suitable for fixed wiring of electrical instruments, equipment, and power lighting
12. RIB Speaker Connection Wire (High-End Wire)
13. KVV Insulated Control Cables - Application: Signal Transmission, Control, and Measurement for Electrical Appliances, Instruments, and Distribution Equipment
14. SFTP Twisted Pair Wire for Transferring Telephony, Data, and Information Networks
15. UL2464 Computer Cables
16. VGA Monitor Cable
17. SYV Coaxial Cable - Used for transmitting radio frequency signals in wireless communication, broadcasting, surveillance system engineering, and related electronic equipment (including general-purpose coaxial cables)
18. SDFAVP, SDFAVVP, SYFPY Coaxial Cables, Elevator
19. JVPV, JVPVP, JVVP Copper Core Insulated and Sheathed Copper Wire Braid Electronic Computer Control Cable
Our waste cable recycling company offers long-term high-priced waste cable recycling services. Waste cables are typically made by winding several or several groups of wires (each group consisting of at least two wires) around a central core, resembling a rope in shape, with a highly insulating layer covering the outer surface.
One. Waste Cable Recycling Brand:
Long-term high-price recycling service for domestic and imported waste cables from brands such as Baosheng, Runluntaishan, Yuandong, Shangshang, Panda,亨通光电, Nanyao, Prewitt, Wujiang, Yandong, Kaikai, Hongqi, Xinti, Nanding, Bendakang, Zhongtian, Taiyang, Kunlun, Jincheng, Ge Pai, Sheng Pai, Taihang, Yuetao, Zhaodao, Tongbao, Changjiang, Wuxi Changcheng, Jiangsu Taixiang, Wenzhengwang Pai, Jiangsu Dayu, Zhejiang Huatai, Jiangsu Yafei, Jiangxi Shengta, Shanghai Qifan, Lanzhou Zhongbang, Shanghai Youjiang, Qingdao Hongri, Tianjin Jinshan, Kunshan Changjiang, Wuxi Huzhong, Guangzhou Tianhong, Shanghai Shenghua, Jiaxing Duojiao, and more.
Section II: Areas for Scrap Cable Recycling
Our company serves the regions of Hangzhou, Ningbo, Wenzhou, Jiaxing, Huzhou, Shaoxing, Jinhua, Quzhou, Zhoushan, Taizhou, Lishui, Tonglu, Chun'an, Jiande, Fuyang, Lin'an, Xiangshan, Ninghai, Yuyao, Cixi, Fenghua, Ruian, Leqing, Jiashan, Haian, Haining, Pinghu, Tongxiang, Zhuji, Shangyu, Shengzhou, Lanxi, Yiwu, Dongyang, Yongkang, Jiangshan, Wende, Linhai (including Pudong New Area, Xuhui District, Changning District, Putuo District, Zhabei District, Hongkou District, Yangpu District, Huangpu District, Luwan District, Jing'an District, Baoshan District, Minhang District, Jiading District, Chongming County), Shanghai; and Nanjing, Zhenjiang, Changzhou, Wuxi, Suzhou, Yangzhou, Taizhou, Yancheng, Huai'an, Lianyungang, Nantong, Taicang, Kunshan, Yixing, Jiangyin, Qidong, Haimen, Zhangjiagang, Hefei, Wuhu, Bengbu, Fuyang, Huainan, Huaibei, Tongling, Wuhu, Anqing, Maanshan, Jiuhua Mountain, Huangshan, Xuancheng.
On-site collection of all types of scrap cables and wires in the region.
Section 3: Scrap Cable Recycling Product Introduction
Definition 1: A conductor or a set of conductors insulated from each other and enclosed by an insulating protective layer, used to transmit electricity or information from one place to another.
Definition 2: A cable resembling rope, typically composed of several wires or groups of wires (each group consisting of at least two wires), twisted together. The wires in each group are insulated from one another and are often twisted around a central core. The entire cable is covered with a highly insulated sheath. The cable features internal conductivity and external insulation.
1. SYV: Solid Insulated Radio Frequency Coaxial Cable
2. SYWV(Y): Physical Foamed Polyethylene Insulated CATV System Cable, Video (RF) Coaxial Cable (SYV, SYWV, SYFV) Suitable for Closed-Circuit Monitoring and Cable Television Projects
SYWV(Y), SYKV Cable Structure for Cable TV and Broadband Internet: (Coaxial Cable) Single Oxygen-Free Round Copper Wire + Physical Foamed Poly (Insulation) + (Tin Wire + Aluminum) + Poly (Poly)
3. Signal Control Cables (RVV jacketed wire, RVVP shielded wire) are suitable for projects such as intercom systems, anti-theft alarms, fire protection, and automatic meter reading.
RVVP: Copper-core insulated shielded polyethylene sheath flexible cable, voltage 250V/300V, 2-24 cores
Applications: Instruments, Meters, Intercoms, Surveillance, Control Installations
4. RG: Physical Foamed Insulation Submarine Cables for Data and Analog Signal Transmission in Coaxial Fiber Hybrid Networks (HFC)
5. KVVP: Shielded braided jacketed cable, Application: Signal transmission, control, and measurement for electrical appliances, instruments, and distribution equipment.
6. RVV (227IEC52/53): Poly-insulated flexible cable, Applications: Household appliances, small electric tools, instruments, and power lighting
7. AVVR: Soft Cable for Protective Sheath Installation
8. SBVV: HYA Data Communication Cables (for Indoor and Outdoor Use) for connecting telecommunication and radio equipment, as well as for wiring distribution boxes in telephone distribution networks.
9. RV, RVP: Poly-insulated Cable
10. RVS, RVB: Suitable for cables used in household appliances, small electric tools, instruments, meters, and power lighting connections.
11. BV, BVR: Poly-insulated cables, Application: Suitable for fixed wiring of electrical instruments and equipment, as well as power and lighting installations.
12. RIB: Speaker Connection Wire (Hi-Fi Wire)
13. KVV: Insulated Control Cable, Applications: Signal Transmission, Control, and Measurement for Electrical Appliances, Instruments, and Distribution Equipment
14. SFTP: Twisted Pair Cable, for transmitting telephone, data, and information networks
15. UL2464: Computer Connection Wire
16. VGA: Monitor Cable
17. SYV: Coaxial Cable, for transmitting radio frequency signals in wireless communication, broadcasting, monitoring system projects, and related electronic equipment (including general-purpose coaxial cables)
18. Coaxial Cable, Elevator
19. JVPV, JVPVP, JVVP: Copper-core insulated and sheathed copper wire, woven computer control cable
Section 4: Waste Cable Recycling Product Classification
Cables include power cables, control cables, compensating cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and more. They are composed of single or multi-strand conductors and insulation, used for connecting circuits and electrical appliances.
Flame-retardant rubber sheathed cable
I. Usage
This product is a series of mining rubber sheathed flexible cables. Suitable for power connections of coal mining machines and similar equipment with rated voltage Uo/U of 1.9/3.3KV and below. Commonly used in coal mines.
Section II: Terms of Use
The conductor is permitted to operate at a long-term working temperature of 65°C, with the small bending radius of the wire being six times the diameter of the cable. Yellow sheathed cables must not be exposed to sunlight for extended periods.
Nuclear-grade cables
Application Scope
·This product is suitable for control and signal cables used in the control network of nuclear power plants with rated voltage Uo/U of 0.6/1kV.
· The cable conductor allows for a long-term working temperature of 90°C, with the conductor temperature not exceeding 250°C during a short circuit, and the duration not to exceed 5 seconds.
The environmental temperature during cable laying should not be below 0°C.
·The allowable bending radius for cable laying is:
— Unarmored cables should not be less than 6 times the diameter of the cable.
Cables with armored or copper tape shielding should be at least 12 times the diameter of the cable.
— Soft cables with shielding structure should be no less than 6 times the diameter of the cable.
· When the conductor is allowed to operate at a long-term temperature not exceeding 90°C, the cable's certified life is at least 40 years.
The finished cables should comply with the requirements of Test for combustion of type A cables as specified in GB/T18380.3 standard.
· Finished cable smoke density: Transparency rate not less than 70%.
Radiation Resistance: 25×10^4 Gy
· Halogen-free: The acidity of the gas released during the combustion of non-metallic materials (expressed as pH value) should be greater than 4.3; the conductivity should not exceed 10μS/mm.
裸电线 and bare conductor products
This category of products features pure conductive metal, without any insulation or sheath, such as steel-core aluminum stranded wire, copper-aluminum busbars, electric locomotive wires, etc.; the main processing technique is pressure processing, including melting, rolling, drawing, stranding/compacted stranding, etc.; the products are primarily used in suburban, rural areas, main user lines, switch cabinets, and more.
Electrical Cable
Our products are primarily used for the transmission of strong electrical energy in transmission lines for power distribution, transmission, transformation, and supply, with high currents (ranging from dozens to thousands of amperes) and high voltages (up to and above 500kV).
Communication cables and optical fibers
Over the past two decades, the rapid development of the telecommunications industry has also led to astonishing growth in products. The evolution has progressed from simple telephone and telegraph cables to thousands of pairs of wire cables, coaxial cables, optical fibers, and data cables, even to composite communication cables. These products typically have smaller and uniform structural dimensions, with high manufacturing precision requirements.
Electromagnetic Wire (Winding Wire)
Primarily used for various motors, instruments, and meters.
Flexible Fire Resistant Cable
1. Excellent fire resistance; the耐火等级 not only meets the international GB12666.6A class 950℃ for 90min, but also complies with the British BS6387-1994 requirements for Grade A (650℃ for 3h), Grade B (750℃ for 3h), and Grade C (950℃ for 3h). Additionally, it can withstand water spray and mechanical impact during combustion.
2. Continuous length is long, whether it's a single-core or multi-core cable, the length can meet the power supply length requirements, with an ultimate length of up to 2000 meters.
3. Sectional area for single-core cables can reach up to 1000mm², while multi-core cables can reach up to 240mm².
4. Flexible, cables can be coiled on a drum, with a bend radius of ≥20D, where D is the outer diameter of the cable.
5. Smoke and odor-free during combustion; insulated with inorganic materials known as "non-combustible" substances, which produce no harmful gases upon burning and do not cause secondary pollution, making it an environmentally friendly and green product.
6. The cable has an excessive cross-sectional capacity, featuring both a large cross-sectional flow and significant overload capability. Generally, the cable surface temperature should not exceed 70℃ according to wiring requirements. If the wiring is not touchable and does not come into contact with combustible building materials, the cable jacket temperature can reach up to 105℃. During overload conditions, the working temperature of the fire-resistant cable can reach 250℃.
7. Corrosion-resistant, organic insulated fire-resistant cables may require plastic or iron piping, as plastic tends to age and become brittle, and iron piping is prone to rust. Fire-resistant cables, however, have copper sheathing that does not need to be enclosed in a pipe, offering excellent corrosion resistance.
8. No electromagnetic interference; when fire-resistant cables are laid in the same vertical shaft as signal and control cables, the fire-resistant cables, shielded by the copper sheath, will not interfere with the information transmission of the signal and control cables.
9. Excellent safety: fire-resistant cables not only provide normal power supply and activate fire extinguishing equipment during flames, reducing fire damage, but also offer exceptional reliability for personal safety. Their copper sheath acts as an excellent conductor, serving as an earth wire that extends continuously along the entire length of the cable, significantly enhancing the sensitivity and reliability of grounding protection.
10. Long service life, inorganic insulating material, high-temperature resistant, and not easily aging; its lifespan is many times longer than that of organic insulated cables. Under normal operating conditions, its lifespan can be equal to that of the building.
11. The transportation and installation of flexible flame-retardant cables include the installation process.
New Product
Derivative/new products for cables and wires are primarily produced due to varying application scenarios and requirements, the convenience of equipment, and the need to reduce equipment costs, which lead to the use of new materials, special materials, alterations in product structure, increased process requirements, or the combination of different product varieties.
Materials used include: flame-retardant cables, low-smoke halogen-free/halogen-reduced cables, termite-proof, rat-proof cables, oil-resistant/cold-resistant/temperature-resistant cables, etc.
Revamp product structure, such as: refractory cables.
Enhance process requirements such as cables.
Composite products such as OPGW
Easy to install and reduce equipment costs, such as prefabricated branch cables.
Five. Waste Cable Recycling Product Models
The composition and sequence of wire and cable models are as follows: [1: Category, Application][2: Conductor][3: Insulation][4: Inner Sheath][5: Structural Features][6: Outer Sheath or Derivative]-[7: Usage Characteristics]
1-5 items and item 7 are represented by pinyin letters, high polymer materials are represented by the first letter of their English name, each item can be 1-2 letters; item 6 is 1-3 digits.
Standard Codes
Usage Code - Not marked as power cable, K-(control cable), P-(signal cable).
Conductor Material Code - Not marked as copper (can also be marked as CU), L-(aluminum)
Inner sheath code - Q-(lead sheathed), L-(aluminum sheathed), H-(rubber sheathed), V-(poly sheathed); the inner jacket is usually not marked.
Outer Sheath Code - V-(Polyester), Y-(Power Cable);
Derived Code - D-(Non-drip), P-(Dry Insulation)
Special Product Codes - TH-(Humid Tropical), TA-(Dry Tropical), ZR-(Flame Retardant), NH-(Fireproof), WDZ-(Low Smoke Halogen-Free, Corporate Standard).
Omitting Principle
Model abbreviation principle: In wire and cable products, copper is the main conductor material, so the copper core symbol "T" is abbreviated, except for bare wires and bare conductor products. For bare wire and bare conductor products, power cable products, and electromagnetic wire products, the general category code is not indicated. Similarly, for electrical equipment wiring and cable products and communication cable products, the category or series code is listed instead.
Item 7 includes markings for special usage occasions or additional requirements, marked with pinyin letters after the hyphen “-”. Occasionally, to emphasize this item, it is written at the beginning. Examples include ZR-(fire-retardant), NH-(fire-resistant), WDZ-(low smoke and halogen-free, corporate standard), TH-(for humid and hot areas), FY-(termite-proof, corporate standard), etc.
Section 6: Applications of Recycled Cable Products
Power System
Electricity systems primarily utilize wire and cable products such as overhead bare conductors, busbars, power cables (plastic insulated cables, oil-paper insulated cables, largely replaced by plastic power cables), rubber-sheathed cables, overhead insulated cables, branch cables (replacing some busbars), electromagnetic wires, and electrical equipment cables for power equipment.
Information Transmission
Wires and cables used for information transmission systems primarily include local telephone cables, television cables, electronic cables, radio frequency cables, fiber optic cables, data cables, electromagnetic wires, power communication cables, or other composite cables.
Instrumentation system
This section is applicable to nearly all products except for overhead bare wires, primarily including power cables, electromagnetic wires, data cables, and cables for instruments and meters.
Section 7: Common Malfunctions of Recycled Cable Products
Common faults in cable lines include mechanical damage, insulation damage, moisture in insulation, aging and deterioration of insulation, overvoltage, and overheating faults. When these faults occur in the line, the power supply to the faulty cable should be disconnected, locate the fault point, inspect and analyze the fault, then carry out repairs and testing. Remove what needs to be cut out, and only after the fault is eliminated can power be restored.
The direct cause of cable failure is the decrease in insulation, which leads to breakdown.
Mainly includes:
a. Overload operation. Prolonged overload operation will cause the cable temperature to rise, the insulation to age, and eventually lead to insulation breakdown, reducing the construction quality.
b. Electrical issues include: cable head construction not meeting standards, poor cable head sealing, moisture intrusion into the cable, and decreased cable insulation performance; failure to implement protective measures during cable laying, resulting in damage to the protective layer and reduced insulation.
c. Civil engineering issues include: insufficient drainage in manholes and trenches, cables being long-term submerged in water, damaging their insulation strength; manholes being too small, insufficient cable bend radius, leading to long-term external force compression and damage. Mainly due to rough and aggressive construction methods during municipal projects, causing damage or cutting of cables.
d. Corrosion: Long-term chemical or cable corrosion of the protective layer leads to its failure and reduced insulation.
e. Poor quality of the cable itself or cable head accessories, poor cable head sealing, insulation glue dissolution, cracking, leading to resonance phenomena at the station being identified as a broken wire fault. This fault creates a resonant circuit between the inter-phase capacitance and ground capacitance of the line, and the excitation inductance of the distribution transformer, thereby triggering ferromagnetic resonance.
Harmonic disturbances caused by open circuit faults
In severe cases, the resonance of open-circuit can cause the superposition of high-frequency and fundamental frequency resonances, leading to overvoltage amplitudes reaching 2.5 times the phase voltage [P]. This may result in the displacement of the neutral point in the system, overvoltage in windings and conductors, and in severe instances, can cause insulation breakdown, lightning arrester explosion, and damage to electrical equipment. In certain situations, the phase sequence of the load transformer may be reversed, and overvoltage may also be transmitted to
