October 18, 2023
First, wire and cable products are mainly divided into five categories:
1. Bare wires and products with bare conductors
The main features of this type of product are: pure conductive metal, no insulation and sheath layer, such as steel core aluminum stranded wire, copper-aluminum busbar, electric locomotive wire, etc.; processing technology is mainly pressure processing. such as melting, calendering, drawing, twisting/compression twisting, etc.; products are mainly used in suburban areas, rural areas, user trunk lines, distribution cabinets, etc.
2. Power cable
The main features of this type of product are: extruding (winding) an insulating layer outside conductor, such as overhead insulated cables, or twisting several strands (corresponding to phase conductor, neutral conductor and earth conductor of power system). ) such as more than two-core air insulated cables or additional sheath layers such as plastic/rubber sheathed wires and cables. The core technology includes drawing, twisting, insulation extrusion (wrapping), twisting, reinforcement, sheath extrusion, etc., and different combinations of operations of different products have a certain difference.
The product is mainly used for transmission of strong electrical energy in transmission, distribution, transmission, conversion and power supply lines. The passing current is large (from tens to thousands of amperes) and high voltage. (from 220V to 500kV and above).
3. Wires and cables for electrical equipment
The main features of this type of products are: various varieties and specifications, wide range of applications, more voltages below 1kV, new products are constantly introduced for special occasions, such as fire-resistant cables, fire-resistant cables, low-voltage cables. -smoke and non-toxic Halogen/low smoke low halogen cables, termite-proof, mouse-resistant cables, oil/cold-resistant/heat-resistant/wear-resistant cables, medical/agricultural/mining cables, thin-wall wires, etc.
4. Communication cables and optical fibers (the company does not currently produce such products, so this is a brief introduction)
With rapid development of communications industry over past two decades, products have also developed at an astonishing rate. From simple telephone and telegraph cables in past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables and even combined communication cables.
The structural size of this type of product is usually small and uniform, requiring high manufacturing precision.
5. Electromagnetic wire (windingth wire) (the company does not currently produce this type of product, so this is a brief introduction)
Mainly used in various motors, instruments, meters, etc.
Derivative/new wire and cable products:
Wire and cable derivative/new products are mainly related to application cases, different application requirements, equipment convenience and equipment cost reduction requirements, etc., and new materials, special materials, or changes in product structure. Toad ⒒ pole yellow score Mou Fang ferocious gap?
The use of various materials such as flame retardant cables, low smoke/halogen free/low smoke/low halogen cables, termite/mouse proof cables, oil/frost/heat resistant cables, etc. ;
Change structure of product, for example: fire-resistant cables, etc.;
Improve technological requirements such as: medical cables, etc.;
Combination products such as: OPGW, etc.;
Easy installation and lower equipment costs such as prefabricated drop cables, etc.
Two,Cable type classification
1) Category: H——Local communication cable
HP——wire cable
HJ - office cable
(2) Insulation: Y - Solid Polyolefin Insulation
YF - expanded polyolefin insulation
YP - Foamed/Rigid Polyolefin Insulation
(3) Inner jacket: A - plastic coated aluminum tape connecting shielding polyethylene jacket
S——aluminum, steel two-layer metal with shielded polyethylene jacket
V——PVC Jacket
(4) Characteristics: T - vaseline filling
G—high frequency isolation
C—sustainability
(5) Outer sheath: 23 - two-layer anti-corrosion steel strip wrapped and secured with polyethylene pins, outer sheath
33—Single layer quilted layer of fine steel wire reinforced with polyethylene xianlan315.com
43—Single layer reinforced polyethylene coating made of thick steel wire
53——Single-layer steel strip with a corrugated longitudinal reinforced polyethylene outer coating
553—Two-layer steel strip with a corrugated longitudinal reinforced polyethylene outer coating
2) BV wire with copper core and PVC insulation;
BLV wire with aluminum core and PVC insulation;
Wire with BVV copper core, PVC insulation and PVC sheath;
BLVV wire with aluminum core, PVC insulation and PVC sheath;
Cord with BVR copper core and PVC insulation;
RV installation cord with copper core and PVC insulation;
Flat connecting cord with RVB copper core and PVC insulation;
Twisted cord with BVS copper core and PVC insulation;
RVV cord with copper core, PVC insulation and PVC sheath;
flexible wire with polyethylene insulation BYR;
BVR cord with polyethylene insulation in PVC sheath;
PE insulated cord RY;
PE-insulated PVC-sheathed RYV cord
3) The cable model consists of eight parts:
1. Destination code - not marked as power cable, K - control cable, P - signal cable;
2. Insulation code - Z oil impregnated paper, X rubber, V PVC, YJ XLPE
Thirdly, conductor material code is not designated as copper, L is aluminum;
4. Inner sheath code - Q lead sheath, L aluminum sheath, H rubber sheath, V PVC sheath
5. Derived code - D does not drip, P dry insulation;
6. Outer shell code
Seven, special product code - TH for humid tropics, TA for dry tropics;
8. Rated voltage - kV unit
Question about cable model
1. SYV: Rugged PE Insulated RF Coaxial Cable
2. SYWV(Y): PE foam insulated CATV system cable, video (radio frequency) coaxial cable (SYV, SYWV, SYFV) suitable for closed loop monitoring and CATV projects
SYWV (Y), SYKV CATV, dedicated broadband cable structure: (coaxial cable) single oxygen-free round copper wire, physical polyethylene foam (insulation) (tin wire, aluminum), polyvinyl chloride (polyethylene)
3. Signal control cables (RVV sheathed wires, RVVP shielded wires) are suitable for intercom communication, anti-theft alarm, fire protection, automatic meter reading and other projects
RVVP: PVC-insulated copper conductor screening with PVC sheath flexible cable voltage 300V/300V2-24 cores
Application: instrument, meter, intercom, monitoring, control unit
4. RG: PE foam insulated network access cable used for transmission of data and analog signals in a coaxial-optical hybrid network (HFC)
5. KVVP: PVC braided shielded cable Application: signal transmission, control and measurement of electrical appliances, instruments and power distribution devices
6. RVV (227IEC52/53) PVC insulated flexible cable Application: Household appliances, small power tools, instruments and power lighting
7. Flexible cable for mounting in PVC sheath АВВР
8. SBVV HYA data cables (internal and external) are used to connect telephone and radio equipment, as well as distribution wiring of a telephone distribution network
9, RV, RVP Cables with PVC insulation
10. RVS and RVB are suitable for connecting cables of household appliances, small power tools, tools, meters and power lighting
Cables with PVCoh insulation 11, BV, BVR Application: for fixed wiring of electrical appliances and power lighting
12. Speaker cable RIB (fever cable)
13.KVV control cable with PVC insulation Application: signal transmission, control, measurement of electrical appliances, instruments, power distribution devices
14. Twisted Pair SFTP Phone
15. Computer cable UL2464
16. VGA monitor cable
17. SYV coaxial cable RF signal transmission in wireless communication, broadcasting, monitoring system design and related electronic equipment (including complex coaxial cable)
18 coaxial cable SDFAVP, SDFAVVP, SYFPY, special for elevator
19, JVPV, JVPVP, JVVP copper core computer control cable with PVC insulation and copper braided wire sheath
Three,
The meaning of specifications and models of wires and cables
Model, name
RV connection cable (wire) with copper core and vinyl chloride insulation
flexible cable (wire) with tinned copper core and polyethylene insulation AVR
Flat PVC connecting wire with RVB copper core
PVC stranded connecting wire with RVS copper core
PVV Copper Core PVC Insulated Flexible Cable with PVC Sheath and Round Joint
ARVV Tinned Copper Flexible Cable with PVC Insulation, Flat Splice and PVC Sheath
Flexible RVVB Copper Core PVC Insulated PVC Sheath Flat Splice Cable
RV－105 Heat Resistant 105oC Copper PVC Insulated PVC Insulated Pigtail Cable
AF－205AFS－250AFP－250 silver plated PVC fluoride plastic insulation high temperature resistance -60°C~250°C connection flexible wire
2. Meaning of specification designation
Specifications are indicated by number of cores, nominal cross section and voltage level
①Single-core drop cable specification designation: number of cables in one circuit * (1*nominal cross section), 0.6/1kV,
For example: 4*(1*185)+1*95 0.6/1 kV
② Stranded twisted drop cable specification: number of cables in one circuit * nominal cross section, 0.6/1 kV,
For example: 4**185+1*95 0.6/1kV
Description of specifications and models of wires and cables
Model Name Purpose
BX (BLX)
BXF (BLXF)
BXR wire with copper (aluminum) core and rubber insulation
Wire with copper (aluminum) core and neoprene insulation
Copper core rubber insulated flexible wire suitable for AC 500V and below or DC 1000V and below electrical equipment and lighting
BV (BLV)
BVV (BLVV)
BVVB (BLVVB)
BVR
BV-105 wire with copper (aluminum) core in PVC insulation
Round wire with copper (aluminum) core, PVC insulation and vinyl chloride sheath
Flat wire with copper (aluminum) core, PVC insulation and vinyl chloride sheath
Cord with copper (aluminum) core and PVC insulation
Flexible wire with a copper core heat-resistant 105°C in PVC insulation is designed for fixed laying of various AC and DC electrical appliances, electrical appliances, tools, telecommunications equipment, power lines and lighting
RV
RVB
RVS
РВ-105
Reception
RX with copper core and PVC insulation
Parallel Cord with Copper Core and PVC Insulation
Twisted cord with copper core and PVC insulation
Copper core, heat resistant, 105°C, PVC insulated, flexible wire
Twisted flexible wire with copper core and cotton rubber insulation
Cotton braid with copper core and rubber insulation is suitable for connecting various AC and DC electrical appliances, power tools, household appliances, small power tools, power and lighting appliances
BBX
Fiberglass braid with BBLX copper core and rubber insulation
Fiberglass braided wire with aluminum core and rubber insulation, applicable voltages of 500 V and 250 V respectively, for indoor and outdoor fixed laying or pipe laying
Note: B (C) - first letter indicates wiring, and second letter indicates fiberglass.
V (B) - The first letter indicates polyethylene (plastic) insulation, and second letter indicates polyethylene sheath.
L (L)——aluminum, no L means copper
F (Ф) - connection
R—soft line
S——twisted pair
X—insulating rubber
Detailed specification and model table of wires and cables
Using model name BX (BLX) BXF (BLXF) BXR rubber insulated copper (aluminum) core copper (aluminum) core chlorine copper wire (aluminum) wire soft wire with PVC insulation heat-resistant copper wire 105 °C flexible wire with PVC insulation suitable for fixed laying of various AC and DC electrical appliances, electrical appliances, appliances, telecommunications equipment, power and lighting lines RVRVBRVSRV-105RXSRX PVC copper wire insulated flexible wire with PVC copper core insulated parallel flexible cord copper core twisted cable with PVC insulation copper core heat-resistant 105°C PVC insulated connecting flexible wire rubber insulated copper core cotton braided twisted flexible cordcopper core rubber insulating cotton yarn braided round flexible cord Connection of various AC and DC electrical appliances, power tools, household appliances, small power tools, power and lighting appliances Indoor and outdoor fixed laying or pipe laying
