Cable model
1. Category: H—— Local communication cable HP—— Distribution cable HJ—— Office cable
2. Insulation: Y—— Solid polyolefin insulation YF—— Foam polyolefin insulation YP—— Foam/solid leather polyolefin insulation
3. Inner cover: A—— Plastic coated aluminum tape bonding shielding polyethylene sheath S—— Aluminum, steel double-layer metal tape shielded polyethylene sheath V—— PVC sheath
4. Features: T—— Petroleum jelly filling G—— High frequency isolation C—— self-supporting
5. Outer sheath:
23—— Double layer anti-corrosion steel tape wrapped and pinned polyethylene outer coating
33—— Single layer thin steel wire armored polyethylene coating
43—— Single layer thick steel wire armored polyethylene coating
53—— Single layer steel strip corrugated longitudinal armored polyethylene outer coating
553—— Double layer steel strip corrugated longitudinal armored polyethylene outer coating
BV Copper core PVC insulated wire
BLV Aluminum core PVC insulated wire;
BVV Copper core PVC insulated PVC sheathed wire;
BLVV Aluminum core PVC insulated PVC sheathed wire;
BVR Copper core PVC insulated cord;
RV Copper core PVC insulated installation cord;
RVB Copper core PVC insulated flat connection cord;
BVS Copper core PVC insulated stranded cord;
RVV Copper core PVC insulated PVC sheathed flexible wire;
BYR Polyethylene insulated flexible wire;
BYVR PE insulated PVC sheathed cord;
RY Polyethylene insulated cord;
RYV Polyethylene insulated PVC sheathed flexible wire
The cable model consists of eight parts
1、 Usage code - not marked as power cable ， K For control cable, P Is signal cable;
2、 Insulation code - Z Oil impregnated paper, X Rubber, V Polyvinyl chloride, YJ Cross linked polyethylene
3、 Conductor material code - not marked as copper, L Is aluminum;
4、 Inner sheath code - Q Lead wrap, L Aluminum clad, H Rubber sleeve, V PVC sheath
5、 Derived code - D No drip, P Dry insulation;
6、 Outer sheath code
7、 Special Product Code - TH Humid tropics, TA Dry tropics;
8、 Rated voltage - unit KV Questions about cable model
one 、 SYV : Solid polyethylene insulated RF coaxial cable
two 、 SYWV(Y) : Physically foamed polyethylene insulated cable for cable TV system, video (RF) coaxial cable（ SYV 、 SYWV 、 SYFV ）Applicable to closed-circuit monitoring and cable television projects SYWV （ Y ）、 SYKV Cable structure for cable TV and broadband network: (coaxial cable) single oxygen free round copper wire physical foaming polyethylene (insulation) (tin wire aluminum) PVC (polyethylene)
three Signal control cable（ RVV Sheath wire RVVP Shielded wire) is applicable to building intercom, anti-theft alarm, fire protection, automatic meter reading and other projects RVVP : Copper core PVC insulated shielded PVC sheathed flexible cable voltage 300V/300V2-24 Core use: instrument, instrument, intercom, monitoring, control installation
four 、 RG : The physically foamed polyethylene insulated access network cable is used in the coaxial fiber hybrid network（ HFC ）Analog signal of data transmission in
five 、 KVVP PVC sheathed braided shielded cable Application: signal transmission, control and measurement of electrical appliances, instruments and power distribution devices
six 、 RVV （ 227IEC52/53 ）PVC insulated flexible cable Application: household appliances, small electric tools, instruments and power lighting
seven 、 AVVR Flexible cable for PVC sheath installation
eight 、 SBVV HYA Data communication cables (indoor and outdoor) are used for connection of telephone communication and radio equipment and junction box wiring of telephone distribution network
nine 、 RV 、 RVP PVC insulated cable
ten 、 RVS 、 RVB Applicable to cables for connecting household appliances, small electric tools, instruments, meters and power lighting
eleven 、 BV 、 BVR PVC insulated cable application: suitable for fixed wiring of electrical instrument equipment and power lighting
twelve 、 RIB Speaker connection cable (fever cable)
thirteen 、 KVV PVC insulated control cable Application: signal transmission, control and measurement of electrical appliances, instruments and power distribution devices
fourteen 、 SFTP Twisted pair transmission telephone, data and information network
fifteen 、 UL2464 Computer connection cable
sixteen 、 VGA Display cable
seventeen 、 SYV Transmission of RF signals in coaxial cable wireless communication, broadcasting, monitoring system engineering and related electronic equipment (including integrated coaxial cable)
eighteen 、 SDFAVP 、 SDFAVVP 、 SYFPY Coaxial cable, special for elevator
nineteen 、 JVPV 、 JVPVP 、 JVVP Copper core PVC insulated and sheathed copper wire braided computer control cable
Naming principles of wire and cable products
one Contents included in the product name
(1) Name of product application or size category
(2) Product structural material or type;
(3) Important or additional features of the product
The names are basically in the above order. Sometimes, in order to emphasize important or additional features, the features are written before or before the corresponding structure description.
two Sequence of structure description
The product structure is described from inside to outside: conductor --> insulation --> Inner sheath --> Outer sheath --> Armor type.
three Simplification
In case of no confusion, some structural descriptions are omitted or abbreviated, for example, aluminum conductors are not allowed in automobile wires and flexible wires, so conductor materials are not described.
Case:
Rated voltage 8.7/15kV Flame retardant copper core XLPE insulated steel tape armored PVC sheathed power cable “ Rated voltage 8.7/15kV”—— Application occasions / Voltage level “ Flame retardant ”—— Highlighted features “ Copper core ”—— Conductor material “ XLPE insulation ”—— Insulating material “ Steel strip armouring ”—— Armor material and type ( Double steel strip gap wrapping ) “ PVC sheath ”—— Inner and outer sheath materials ( The inner and outer sheath materials are the same, omitting the inner sheath materials ) “ power cable ”—— The product category name and the corresponding model are written as ZR-YJV22-8.7/15 See the description below for the model.
The model composition and sequence of wires and cables are as follows
[1: Category and purpose ] [2: conductor ] [3: insulation ] [4: Inner sheath ] [5: structure characteristics ] [6: Sheathing or derivative ] [7: [ Manganese You ]
1-5 Item and No seven Items are represented by pinyin letters, and polymer materials are represented by the first letter of the English name. Each item can be 1-2 Letters; Section six Item is 1-3 Number.
Omission principle in model: copper is the main conductor material used in wire and cable products, so copper core code T Omission, except for bare wires and bare conductor products. Bare wires and bare conductor products, power cables, and electromagnetic wire products do not indicate the category code, nor do wires and cables for electrical equipment and communication cables, but list the category code or series code. Section seven Item is a mark for various special use occasions or additional special use requirements “-” Marked with pinyin letters. Sometimes, in order to highlight this item, write it first. as ZR-( Flame retardant ) 、 NH-( refractory ) 、 WDZ-( Low smoke and halogen-free, enterprise standard ) 、 -TH( For hot and humid areas ) 、 FY-( Anti termite, enterprise standard ) Etc.
Power cable armouring and outer sheath digital
Digital mark armor layer outer cover or outer sheath
zero nothing
one Interlocking armored fiber cover
two Double layer steel belt PVC jacket
three Fine round steel wire polyethylene jacket
four Thick round steel wire
five wrinkle ( Striation ) steel strip
six Double aluminium ( Or aluminum alloy ) belt
seven Copper wire braiding
eight Steel wire braiding
Classification of wire and cable products
one Power system
The wire and cable products used in the power system mainly include overhead bare wires and bus bars ( a bus or bus bar ) , Power cable ( Plastic cable, oil paper cable ( Basically replaced by plastic power cable ) , rubber sheathed cable Overhead insulated cable ) Branch cable ( Replace some buses ) , electromagnetic wires and electrical equipment wires and cables for power equipment, etc.
two Information transmission system
The wires and cables used for the information transmission system mainly include local telephone cables, television cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communication or other composite cables.
three Mechanical equipment and instrument system
This part is applied to almost all products except overhead bare wires, but mainly power cables, electromagnetic wires, data cables, instrument cables, etc.
Wire and cable products are mainly divided into five categories
one Bare wires and bare conductor products
The main features of this type of products are: pure conductor metal, without insulation and sheath layer, such as steel cored aluminum strand, copper aluminum bus bar, electric locomotive line, etc; The processing technology is mainly pressure processing, such as smelting, calendering, drawing and stranding / Compression stranding, etc; The products are mainly used in suburban areas, rural areas, user main lines, switchgear, etc.
two , Power cable
The main features of this product are: extruding outside the conductor ( Around ) Wrapping insulation layer, such as overhead insulated cable, or several cores twisted ( Corresponding phase line, zero line and ground wire of power system ), For example, overhead insulated cable with more than two cores, or additional sheath layer, such as plastic / Rubber sheathed wire and cable. The main process technologies include drawing, stranding and insulation extrusion ( Wrapping ) , cabling, armouring, sheath extrusion, etc. The different process combinations of various products have certain differences.
The product is mainly used for transmission of strong electric energy in power generation, distribution, transmission, transformation and power supply lines, with large current ( Dozens of amperes to thousands of amperes ) High voltage (220V to 500kV And above ) 。
three Wires and cables for electrical equipment
The main features of this kind of products are: a wide range of varieties and specifications, wide application range, and application voltage of 1kV And more, and constantly derive new products in the face of special occasions, such as fire-resistant cables, flame retardant cables, low smoke halogen free / Low smoke and low halogen cable, anti termite, anti mouse cable, oil resistant / Cold hardiness / Temperature resistance / Wear resistant cable, medical / Agriculture / Mining cables, thin wall wires, etc.
four Communication cable and optical fiber
With the rapid development of the communication industry in the past 20 years, the products have also developed at an amazing speed. From the simple telephone and telegraph cables in the past to thousands of pairs of voice cables, coaxial cables, optical cables, data cables, and even combination communication cables. The structural dimensions of such products are usually small and uniform, and the manufacturing precision is required to be high.
five Electromagnetic wire ( Winding wire )
It is mainly used for various motors, instruments and meters. Derivation of wires and cables / new product : Derivation of wires and cables / New products mainly adopt new materials, special materials, or change the product structure to use different materials such as flame retardant cables, low smoke and zero halogen due to different application occasions, application requirements, equipment convenience and equipment cost reduction requirements / Low smoke and low halogen cable, anti termite, anti mouse cable, oil resistant / Cold hardiness / Temperature resistant cable, etc; Change product structure, such as fire-resistant cable; Improve process requirements, such as medical cables; Combined products such as: OPGW Etc; Convenient installation and lower equipment costs, such as prefabricated branch cables.
