Hi friends, hope you are good and healthy.

In this post , i will tell you
what is line support 
Types of line support
wooden pole
RCC pole
Steel pole
Steel tower

what is Line Support ?

Line supports as the name suggests support the overhead line , cross arm insulator,
conductor , Earth wire etc. Line support should be mechanically strong, cheap 
and light weight for comfortable transport and durable.

 Types of line supports 

various types of line support in use are :-

  1. Wooden poles
  2. RCCpoles
  3. steel poles
  4. steel tower

Now, I am explaining each type one by one.

1. Wooden poles.

  • Wooden poles are made up of dry Sal/chir/teak wood. 
  • Poles are generally 10 to 11 meter in length with sufficient base 
  • They are in simple design or having A shape or  having H shape.
  • The H type Pole is strongest.
  • The wooden pole may be used up to 11KV .
   
Electricalwallah wooden pole

  • There use is limited to rural areas 
  • About 1.5 metre length from bottom which is to buried in the ground ,is treated with  some preservative  to protect it against chemical reaction of soil.
  • These poles do not need earthing but their life is short .
  • The maximum span for which they used is 150 meters.

2.RCC Poles

  • The reinforced cement concrete poles are very much used in rural as well as urban areas.
  • They are also 10 to 11 metre long and use up to 33kv with span of 250 Meter
  •  They do not need earthing their life is short they are liable to break away . 
  •  RCC poles are used as distribution poles in urban areas.

3.Steel poles.

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