Discuss PME and Earth Rods in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

R

rasell

Is It OK to have both?

Some people seem to say it can create a dangerous PD, but is that right? If you have earth bonding thats not that different to an earth rod, as the pipes go through the earth.

I think I read somewhere in the regs or somewhere that an earth rod can be considered as a backup in the case of a PEN fault, otherwise all earthing could become live and you could even get feedback from other properties!

Regards

Marc
 
I am strong believer that there should only be one earthing point.

If you have PME, the supplier has taken responsiblity for the provision of a satisfactory earth point. Almost every joint of an underground cable has an earthing tail, and every second post has a PME spike.

It was explained to me by an inspector for the HV boys, if you used a earth rod and PME, you are in fact providing another earthing point for the whole grid.

Not that it happens every day, but if the pole outside gets hits by lighting, that energy may decide to earth via your house.
 
I am strong believer that there should only be one earthing point.

If you have PME, the supplier has taken responsiblity for the provision of a satisfactory earth point. Almost every joint of an underground cable has an earthing tail, and every second post has a PME spike.

It was explained to me by an inspector for the HV boys, if you used a earth rod and PME, you are in fact providing another earthing point for the whole grid.

Not that it happens every day, but if the pole outside gets hits by lighting, that energy may decide to earth via your house.

Perhaps an earth rod with a surge protector built in :D

Marc
 

Reply to PME and Earth Rods in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock