10mm earths on sub boards

[jimmer]

Is it acceptable to earth bond the water in 10mm to a sub board in the installation if the supply earth feeding the sub board is 10mm or greater?
or does it have to go back to the main earth terninal?
Any help much appreciated

 

[mrloy99]

Is it acceptable to earth bond the water in 10mm to a sub board in the installation if the supply earth feeding the sub board is 10mm or greater?
or does it have to go back to the main earth terninal?
Any help much appreciated

normally goes to met

 

[L&B Electrics]

you have got to go back to the original source being the main db

 

[mrloy99]

you have got to go back to the original source being the main db

MET isco surely?