- Reaction score
- 67,272
because where PME is provided, the supply has the N (star point) reliably earthed at several points along it's route. therefore, it's maintained at ground potential. best option is to TT it with RCD for fault protection, as wilko stated .No thats not what i mean , forgot war and all that. Why is it that a in one house a tncs system here can be connected to neutral but in another house it cant?