For drawing a overhead line, different accessories like pole, conductor, etc. are required. A brief discussion is given here about varieties of accessories available in the market and their use in different jobs:- 1. Electric Poles or Supports 2. Overhead Line Conductors 3. Insulators 4. Cradle Guard 5. Lightning Arrestor 6. Horn-Gap Lightning Arrestor. Accessory # 1. Electric Poles or [...]
Fatal accident may happen if an overhead line snaps and, while falling on the ground, comes in contact with a man or an animal. In order to assure safety against chances of such accidents, safety devices are used in medium and low voltage overhead lines. A safety device is usually made of galvanised iron wire. One end of this wire [...]
The following points highlight the six main types of insulators generally used in low or medium voltage. The types are: 1. Pin Insulators 2. Shackle Insulators 3. Stay-Insulators or Guy-Insulators 4. Reel Insulators 5. Egg-Type Insulators 6. Aerial Fuse. Type # 1. Pin Insulators: An insulator set on a pin or a bolt is called a 'pin insulator'. Both ends [...]