Summary
The complete naming of wires and cables is usually complex, so people sometimes use a simple name (usually a category name) and model specifications to replace the complete name, such as "low voltage cable" represents all plastic insulated power cables of 0.6/1kv level. The type spectrum of wires and cables is relatively complete. It can be said that as long as the standard model and specification of wires and cables are written, specific products can be made clear. But what is the complete name of them?
The naming principles of wire and cable products are as follows:
1. Contents included in the product name
(1) product application or size category name
(2) product structure material or type;
(3) important or additional features of the product
Basically named in the above order, sometimes in order to emphasize important or additional features, features are written before or corresponding structure description.
2. Order of structure description
The product structure is described according to the principle from inside to outside: conductor > insulation > inner sheath > outer sheath > armor type.
3, simplify
In the case of no confusion, some structural descriptions are omitted or simplified, such as aluminum conductor is not allowed in automobile wires and flexible wires, so conductor materials are not described.
Case study:
Rated voltage 8.7/15kv flame retardant copper core XLPE insulated steel strip armored PVC sheathed power cable
"Rated voltage 8.7/15kv" - Application / voltage level
"Flame retardant" -- characteristics emphasized
"Copper core" - conductor material
"XLPE insulation" - insulating materials
"Steel strip armor" - 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, and the inner sheath materials are omitted)
"Power cable" - product category name
The corresponding model is written as zr-yjv22-8.7/15. See the following instructions for the description of the model.
4. The first letter of Chinese pinyin is used to indicate the insulation type, conductor material, inner sheath material and structural characteristics. For example, Z represents paper (Zhi); l represents aluminum (LV); Q represents lead (Qin); F represents phase separation (Fen); Zr represents flame retardant (zuran); NH represents fire resistance (Naihu).
5. The outer sheath structure is represented by two numbers. No number means no armor layer, no outer coating. The first digit represents armor, and the second digit represents outer quilt. For example, the outer quilt of thick steel wire armored fiber is 41.
⒍ cable models are generally arranged in the order of cable structure: insulation material; conductor material; inner sheath; outer sheath.
⒎ cable products are represented by model, rated voltage and specification. The method is to add the rated voltage, number of cores and nominal sectional area after the model.
list
RV,RVV,RVVP,RVVY,RVVYP,KVVRP,(N)2YSLC,ZR-RE,ZR-REE,ZR-REEP,PUR,LIYY,LIYCY,LIYY(TP),LIYCY(TP) ,LI2YCY,PIMF,LIHH,LIHCH。
Characteristic
CEF - ethylene propylene rubber insulated neoprene sheath, marine flame-retardant power cable.
CVV - PVC insulated, PVC sheathed marine flame retardant power cable.
BV, BX, RV, RVV series wires are often used for oxygen cabin wires, among which:
Bv - copper core PVC insulated wire, long-term allowable temperature 65 ℃, minimum temperature - 15 ℃, working voltage AC 500V, DC 1000V, fixed laying indoor and outdoor, exposed laying or concealed laying.
BX -- copper core rubber insulated wire, with the maximum service temperature of 65 ℃, applied indoors.
RV - PVC insulated single core flexible wire, the maximum service temperature is 65 ℃, the minimum service temperature is - 15 ℃, the working voltage is 250V AC, 500V DC, which is used as the internal wiring of instruments and equipment.
RVV - copper core PVC insulated and sheathed flexible wire, with allowable long-term working temperature of 105 ℃, working voltage of 500V a.c. and 1000V D.C., is used in humid, mechanical protection, frequent moving and bending occasions.
Common models
VV: PVC insulation (first V), PVC sheath (second V)
Yjv22 refers to: cross linked polyethylene insulation (YJ), PVC sheath (V), steel tape armor (22)
The model with "Zr" or "fr" is flame-retardant cable (wire). Add "L" for aluminum wire
The wire model is simple:
BVV -- PVC insulated and sheathed copper core wire,
Bv - PVC insulated copper core wire,
BVR -- PVC insulated copper cord,
BX -- rubber insulated copper core wire,
RHF -- neoprene rubber sheathed copper cord.