How many earthing rods for a 132kV switch yard with grid mesh system?

[neduet]

Hi ,

friends , how many earthing rods we should use in 132 kv switch yard. grid/mesh earthing system. less number better or should we use as many as we can. ? rods length is 3000mm ?

thanks.

 

[dlgoff]

For maximum efficiency, rods should be placed no closer together than the length of the rod. Normally, this is 10 ft. Each rod forms an electromagnetic shell around it, and when the rods are too close, the shells actually interfere with each other.

Eleven Practical tips for grounding substations

 

[davenn]

Hi ,

friends , how many earthing rods we should use in 132 kv switch yard. grid/mesh earthing system. less number better or should we use as many as we can. ? rods length is 3000mm ?

thanks.

You should not be asking these sorts of questions on a forum
you should instead consulting the electrical regulations on the construction and installation of such in your countryRegards
Dave

 

[berkeman]

Agreed. Thank you Dave.

 

[micromass]

Hi ,

friends , how many earthing rods we should use in 132 kv switch yard. grid/mesh earthing system. less number better or should we use as many as we can. ? rods length is 3000mm ?

thanks.

If you do not know the answer to this, perhaps consult a professional...