What does the model number of a 35kV power cable represent? Power cables are categorized by voltage level into medium- and low-voltage power cables, high-voltage cables, extra-high-voltage cables, and ultra-high-voltage cables. Cables 35kV and below are considered medium- and low-voltage power cables. There are many models of these cables on the market. Many users fail to understand the model number markings when purchasing power cables, resulting in cables that are not suitable for their intended application.
1. Insulation Type: V stands for polyvinyl chloride; X stands for rubber; Y stands for polyethylene; YJ stands for cross-linked polyethylene; Z stands for paper. 2. Conductor Material: L stands for aluminum; T (omitted) stands for copper.
3. Inner Sheath: V stands for polyvinyl chloride jacket; Y stands for polyethylene jacket; L stands for aluminum jacket; Q stands for lead jacket; H stands for rubber jacket; F stands for neoprene jacket.
4. Features: D stands for non-drip; F stands for phase separation; CY stands for oil-filled; P stands for oil-poor dry insulation; P stands for shielding; Z stands for direct current. 5. Control layer: 0: None; 2: Double steel belt; 3: Fine steel wire; 4: Thick steel wire.
6. Outer sheath: 0: None; 1: Fiber sheath; 2: Polyvinyl chloride sheath; 3: Polyethylene sheath.
7. For flame-retardant cables, add ZR before the designation; for fire-resistant cables, add NH before the designation.
