1. Use the capital letter of the first letter of the Chinese pinyin 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 (qian); F represents phase separation (fen); ZR represents flame retardant (zuran); NH represents fire resistant (naihuo).
2. Use numbers to represent the outer sheath composition, with two digits. No numbers represent no armor layer and no outer sheath. The first digit represents the armor, and the second digit represents the outer sheath, such as the outer sheath of thick steel wire armor fiber is represented as 41.
3. The cable model is generally arranged in the order of: insulation material; conductor material; inner sheath; outer sheath.
4. Cable products are represented by model, rated voltage and specification. The method is to add the rated voltage, number of cores and nominal cross-sectional area after the model.
Model Detailed Description
(1) Category: H - Urban communication cable
HP - Distribution cable
HJ - Office cable
(2) Insulation: Y - Polyethylene insulation
YF - Foamed polyolefin insulation
YP - Foamed/solid skin polyolefin insulation
(3) Inner sheath: A - Plastic coated aluminum tape bonded shielded polyethylene sheath
S - Aluminum, steel double metal tape shielded polyethylene sheath
V - Polyvinyl chloride sheath
(4) Features: T - Petroleum jelly filling
G - High frequency isolation
C - Self-supporting
(5) Outer sheath: 23 - Double layer of anti-corrosion steel tape wrapped with pins and polyethylene outer sheath
33 - Single layer of fine steel wire armored polyethylene sheath
43 - Single layer of coarse steel wire armored polyethylene sheath
53 - Single layer of steel tape corrugated longitudinal armored polyethylene outer sheath
553 - Double layer of steel tape corrugated longitudinal armored polyethylene outer sheath
2) BV Copper core polyvinyl chloride insulated wire;
BLV Aluminum core polyvinyl chloride insulated wire;
BVV Copper core PVC insulated PVC sheathed wire;
BLVV aluminum core PVC insulated PVC sheathed wire;
BVR copper core PVC insulated soft wire;
RV copper core PVC insulated installation soft wire;
RVB copper core PVC insulated flat connection wire soft wire;
BVS copper core PVC insulated twisted soft wire;
RVV copper core PVC insulated PVC sheathed soft wire;
BYR polyethylene insulated soft wire;
BYVR polyethylene insulated PVC sheathed soft wire;
RY polyethylene insulated soft wire;
RYV polyethylene insulated PVC sheathed soft wire
3) WD: halogen-free low smoke type
ZR: flame retardant type
NH: fire resistant type
DH: fireproof type