Summary of various specifications and models of cables

 Cable model
1. Category: H - Urban Communication Cable HP - Distribution Cable HJ - Local Cable
2. Insulation: Y - solid polyolefin insulation YF - foam polyolefin insulation YP - foam/solid leather polyolefin insulation
3. Inner protective layer: A - coated aluminum tape bonded shielding polyethylene sheath S - aluminum, steel double-layer metal tape shielding polyethylene sheath V - polyvinyl chloride sheath
4. Features: T - Petroleum paste filling G - High frequency isolation C - Self supporting type
5. Outer protective layer:
23- Double layer anti-corrosion steel strip wrapped and wrapped with 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 wrinkle longitudinal armor polyethylene outer coating layer
553- Double layer steel strip wrinkled longitudinal armor polyethylene outer coating layer
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 flexible wire;
RV copper core PVC insulated installation flexible wire;
RVB copper core PVC insulated flat connecting wire flexible wire;
BVS copper core PVC insulated twisted flexible wire;
RVV copper core PVC insulated PVC sheathed flexible wire;
BYR polyethylene insulated flexible wire;
BYVR polyethylene insulated polyvinyl chloride sheathed flexible wire;
RY polyethylene insulated flexible wire;
RYV polyethylene insulated PVC sheathed flexible wire
The cable model consists of eight parts
1. Usage code - not labeled as power cable, K is control cable, P is signal cable;
2. Insulation code - Z oil immersed paper, X rubber, V polyvinyl chloride, YJ cross-linked polyethylene
3. Conductor material code - not labeled as copper, L is aluminum;
4. Inner protective layer code - Q lead package, L aluminum package, H rubber sleeve, V polyvinyl chloride sheath
5. Derivative code - D does not drip, P is dry insulated;
6. Code for outer protective layer
7. Special product code - TH wet tropical, TA dry tropical;
8. Issues related to cable models in rated voltage unit KV:
(1) SYV: Solid polyethylene insulated RF coaxial cable
(2) SYWV (Y): Physical foam polyethylene insulated cable for cable television system, video (RF) coaxial cable (SYV, SYWV, SYFV) suitable for closed-circuit monitoring and cable television engineering SYWV (Y), SYKV cable television, broadband network dedicated cable structure: (coaxial cable) single oxygen free round copper wire physical foam polyethylene (insulation) (tin wire aluminum) polyvinyl chloride (polyethylene)
(3) Signal control cable (RVV sheathed wire, RVVP shielded wire) is suitable for building intercom, anti-theft alarm, fire protection, automatic meter reading and other engineering projects. RVVP: copper core PVC insulated shielded PVC sheathed flexible cable voltage 300V/300V2-24 cores. Usage: instrument, meter, intercom, monitoring, control installation
(4) RG: Physical foam polyethylene insulated access network cable used for transmitting data analog signals in coaxial fiber hybrid network (HFC)
(4) KVVP: PVC sheathed braided shielded cable Application: Signal transmission, control, and measurement for electrical, instrumentation, and distribution equipment
(6) RVV (227IEC52/53) PVC insulated flexible cable Application: Household appliances, small power tools, instruments, and power lighting
(7) AVVR PVC sheathed installation flexible cable
(8) SBVV HYA data communication cables (indoor and outdoor) are used for connecting telephone communication and wireless equipment, as well as for wiring distribution boxes in telephone distribution networks
(9) RV and RVP PVC insulated cables
(10) RVS and RVB are suitable for household appliances, small power tools, instruments, meters, and power lighting connection cables
(11) Application of BV and BVR PVC insulated cables: Suitable for fixed wiring of electrical instruments and power lighting equipment
(12) RIB speaker connection cable (fever cable)
(13) KVV PVC insulated control cable is used for signal transmission, control, and measurement in electrical, instrumentation, and distribution equipment
(14) SFTP twisted pair transmission for telephone, data, and information networks
(15) UL2464 computer connection cable
(16) VGA monitor cable
(17) Transmission of RF signals in SYV coaxial cable wireless communication, broadcasting, monitoring system engineering and related electronic equipment (including comprehensive coaxial cables)
(18) SDFAVP, SDFAVVP, SYFPY coaxial cables, elevator specific
(19) JVPV, JVPVP, JVVP copper core PVC insulated and sheathed copper wire braided electronic computer control cable
Naming principles for wire and cable products
1. The content included in the product name
(1) Product application scenario or size category name
(2) Product structural materials or types;
(3) Important or additional features of the product
Naming is generally done in the order mentioned above, sometimes to emphasize important or additional features, the features are written earlier or before the corresponding structural description.
2. The order of structural description
The product structure description follows the principle from inside out: conductor -->insulation -->inner protective layer -->outer protective layer -->armor type.
3. Simplify
Without causing confusion, some structural descriptions are omitted or abbreviated, such as aluminum conductors not allowed in automotive wires and flexible cords, so the conductor material is not described.
case
Rated voltage 8.7/15kV flame-retardant copper core cross-linked polyethylene insulated steel tape armored polyvinyl chloride sheathed power cable "Rated voltage 8.7/15kV" - Application scenario/voltage level "Flame retardant" - Emphasized features "copper core" - Conductor material "cross-linked polyethylene insulated" - Insulation material "steel tape armored" - Armor layer material and type (double steel tape gap wrapping) "polyvinyl chloride sheathed" - Inner and outer sheath materials (inner and outer sheath materials are the same, provincial writing of inner sheath material) "Power cable" - The product category name and corresponding model are written as ZR-YJV22-8.7/15, and the model writing is described later.
The model composition and sequence of wires and cables are as follows
[1: Category, purpose] [2: Conductor] [3: Insulation] [4: Inner protective layer] [5: Structural features] [6: Outer protective layer or derivative] [7: [Make manganese container]
Items 1-5 and 7 are represented by pinyin letters, while polymer materials are represented by the first letter of their English names, with each item consisting of 1-2 letters; The sixth item consists of 1-3 digits.
The principle of omission in the model: Copper is the main conductor material used in wire and cable products, so the copper core code T is omitted, except for bare wires and bare conductor products. Bare wires and bare conductor products, power cables, and electromagnetic wire products do not indicate major category codes. Electrical equipment wires and cables, as well as communication cables, are also not listed, but sub category or series codes are specified. The seventh item is marked with pinyin letters after "-" for various special usage occasions or additional special usage requirements. Sometimes, in order to highlight this item, it is written at the beginning. Such as ZR - (flame retardant), NH - (fire-resistant), WDZ - (low smoke and halogen-free, enterprise standard), - TH (used in humid and hot areas), FY - (anti termite, enterprise standard), etc.
Number of Armor and Outer Sheath for Power Cables
Number marking armor layer outer coating or outer sheath
0 None
1. Interlocking armor fiber outer cover
2 double-layer steel strip PVC jacket
3 thin round steel wire polyethylene jacket
4 thick round steel wires
5 Wrinkle (Rolling) Steel Strip
6 double aluminum (or aluminum alloy) strips
7 copper wire weaving
8 steel wire weaving
Classification of wire and cable products
1. Power system
The wire and cable products used in the power system mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil paper cables (mostly replaced by plastic power cables), rubber sheathed cables, overhead insulated cables), branch cables (replacing some busbars), magnetic wires, and electrical equipment wires and cables for power equipment.
2. Information transmission system
The wires and cables used in information transmission systems mainly include local telephone cables, television cables, electronic cables, RF cables, fiber optic cables, data cables, electromagnetic wires, power communication or other composite cables.
3. Mechanical equipment, instrumentation systems
This section is applicable to almost all products except for overhead bare wires, but mainly includes power cables, electromagnetic wires, data cables, instrument cables, etc.
Wire and cable products are mainly divided into five categories
1. Bare wires and bare conductor products
The main features of this type of product are: pure conductor metal, without insulation or sheath layer, such as steel core aluminum stranded wire, copper aluminum busbar, electric locomotive line, etc; The processing technology mainly involves pressure processing, such as melting, rolling, drawing, twisting/compression twisting, etc; The product is mainly used in suburban areas, rural areas, user main lines, switchgear, etc.
2. Power cable
The main features of this type of product are: extruding (winding) an insulation layer outside the conductor, such as overhead insulated cables, or twisting several cores (corresponding to the phase line, neutral line, and ground line of the power system), such as two core or more overhead insulated cables, or adding a protective sheath layer, such as plastic/rubber sheathed wires and cables. The main process technologies include drawing, twisting, insulation extrusion (wrapping), cabling, armor, protective layer extrusion, etc. The different process combinations of various products have certain differences.
The product is mainly used for the transmission of strong electrical energy in power generation, distribution, transmission, transformation, and power supply lines, with high currents (tens of amps to thousands of amps) and high voltages (220V to 500kV and above).
3. Wires and cables for electrical equipment
The main features of this type of product are: a wide variety of specifications, a wide range of applications, and a high usage voltage of 1kV and below. In the face of special occasions, new products are constantly emerging, such as fire-resistant cables, flame-retardant cables, low smoke halogen-free/low smoke low halogen cables, anti termite, anti mouse cables, oil resistant/cold resistant/temperature resistant/wear-resistant cables, medical/agricultural/mining cables, thin-walled wires, etc.
4. Communication cables and optical fibers
With the rapid development of the communication industry in the past two decades, products have also experienced astonishing growth rates. From 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 high manufacturing accuracy is required.
5. Electromagnetic wire (winding wire)
Mainly used for various motors, instruments, etc. Derivatives/new products of wires and cables: Derivatives/new products of wires and cables mainly adopt new materials, special materials, or change the product structure to use different materials such as flame-retardant cables, low smoke halogen-free/low smoke halogen-free cables, anti termite, anti mouse cables, oil resistant/cold resistant/temperature resistant cables, etc. due to different application scenarios, application requirements, equipment convenience, and requirements for reducing equipment costs; Changing product structure, such as fire-resistant cables; Improve process requirements such as medical cables, etc; Combination products such as OPGW, etc; Convenient installation and reduced equipment costs, such as prefabricated branch cables.