Cable laying methods
1. Commonly Used Low-Voltage Power Cables Are Divided Into Several Categories According To Their Different Insulation And Protection Layers. Which Categories Are These?
Answer:
- Oil-impregnated paper-insulated lead-clad (or aluminum-clad) power cables
- Non-drip oil-impregnated paper-insulated power cables and wires
- Polyvinyl chloride insulated polyvinyl chloride sheathed power cables
- Cross-linked polyvinyl chloride insulated polyethylene sheathed power cables
- Cross-linked polyvinyl chloride insulation polyvinyl chloride sheathed power cables
- Rubber insulated cables
2. What Are The Common Types Of Insulation Materials? Give Examples?
Answer:
- Inorganic insulating wire and cable materials: mica, asbestos, marble, porcelain, glass, to name a few.
- Organic insulating materials: these include resin, rubber, paper, hemp, and cotton yarn, among others.
- Mixed insulating materials: the above insulating materials are used to process and shape the name insulating materials
