Electrical Earthing

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By, "size", do you mean diameter or length?

Consult your local code requirements, if any. If not, you still should use a recognized standard such as (US)NEC, BS7671, or others. It also depends on earth conditions.

Hi, Guest

Are you refering to ground electrode, if yes

3/8 x 5ft

1/2 x 1oft

5/8 x 10ft

3/4 x 10ft

1 x 10ft

The best method is to consult an experienced engineer. If you are a young engineer you should know the prospective fault current,type of soil,type of installation (hone, industry,substation-system earth,telecom earth,lightning earth,surge earth etc)

Refer IS-3043, clause 10.3 & Section 12.2.2.1.

Tell me if you can't find them. I will help you with the formulae.

Can u explain, please

I am sorry! Please quote carefully. This section 12.2.2.1 of IS 3043 specifies only the sizing of Protective Conductors and NOT the earth electrode sizing. Earth Electrdoe sizes are given in Section 9 of IS 3043 rather.9.2.1 gives typical plate electrode sizes & 9.2.2 gives typical Pipe or Rod electrode sizes.