1. Use the capitalization of the first letter of the Chinese pinyin to indicate the insulation type, conductor material, inner sheath material and structural characteristics. For example, Z stands for paper (zhi); L stands for aluminum (lv); Q stands for lead (qian); F stands for phase separation (fen); ZR stands for flame retardant (zuran); NH stands for fire resistance (naihuo).
2. Use numbers to indicate the composition of the outer protective layer, with two digits. No number means no armor layer and no outer cover layer. The first digit indicates the armor, and the second digit indicates the outer quilt. For example, the outer armor of thick steel wire is indicated as 41.
3. The cable model is generally in sequence according to the arrangement of the cable structure: insulating material; conductor material; inner protective layer; outer protective layer.
4. Cable products are expressed by model, rated voltage and specification. The method is to specify the rated voltage, the number of cores and the nominal cross-sectional area after the model number.
Model details
(1) Category: H——Intra-city communication cable
HP-distribution cable
HJ-office cable
(2) Insulation: Y-polyethylene insulation
YF-foam polyolefin insulation
YP-Foam/Solid Skin Polyolefin Insulation
(3) Inner protective layer: 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 protective layer: 23-double-layer anti-corrosion steel belt wrapped with polyethylene outer layer
33——Single-layer thin steel wire armored polyethylene coating
43——Single-layer thick steel wire armored polyethylene coating
53——Single-layer steel belt corrugated longitudinally wrapped armored polyethylene outer layer
553-Double-layer steel belt corrugated longitudinally wrapped armored polyethylene outer layer
2) 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 connecting wire cord;
BVS copper core PVC insulated stranded flexible wire;
RVV copper core PVC insulated PVC sheathed flexible cord;
BYR polyethylene insulated flexible wire;
BYVR polyethylene insulated PVC sheathed cord;
RY polyethylene insulated cord;
RYV polyethylene insulated PVC sheathed cord
3) WD: Halogen-free low-smoke type
ZR: Flame-retardant
NH: fire-resistant
DH: Fireproof type
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