Just a quickie.
What size should the MEB to water and gas supplies be in a property with a PME supply earth? The supply earth is 50mm² and the supply neutral is 95mm² (Its a non domestic property BTW)
What size should the MEB to water and gas supplies be in a property with a PME supply earth? The supply earth is 50mm² and the supply neutral is 95mm² (Its a non domestic property BTW)

