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 [...]
The following article will guide you about how overhead line is drawn, explained with the help of suitable diagrams. The route along which the overhead line is to be drawn should at first be surveyed and one peg is to be driven into the ground wherever a pole is to be erected. It is necessary to watch that the poles [...]
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 [...]