Not sure which topic to put this (and other battery storage related issues), so move if required.
I would appear that the Battery Storage revolution is upon us and whether we like it or not, people are going to start fitting these. If it turns out I'm installing them, I want to make sure I'm doing it right.
I know some on here are totally against it at moment, but as I say, it will probably happen regarless of our view.
So, lets kick the questions off with earthing. In particular earthing arrangements when a backup system is installed for when the grid fails. From what I have found out so far, once the grid fails you need to have a changoover switch, whether it be manual or automatic and as part of the changeover, when the generator (in our case a battery system) is brought in the Neutral and Earth connections need to be linked.
That is pretty much as far as freely available information goes. So, my question is, what else?
If the grid Earth connection is lost (afterall backup is for in case of lost grid) then there is no connection to the mass of earth. Wouldn't be an issue if we were floating in the sky not touching earth ourselves or using services that do contact earth. My assumption would be to fire a spike in, but where? adjacent MET and connect to MET? From memory the DNO don't like you adding earth connection after a TN split, though I could be wrong. Do we need to bond the body of the battery inverter so that it is just the same potential as the other services?
I can only assume that this is same no matter what the secondary generator is, battery, diesel, water @Canoeboy.
Any info would be greatly appreciated.
I would appear that the Battery Storage revolution is upon us and whether we like it or not, people are going to start fitting these. If it turns out I'm installing them, I want to make sure I'm doing it right.
I know some on here are totally against it at moment, but as I say, it will probably happen regarless of our view.
So, lets kick the questions off with earthing. In particular earthing arrangements when a backup system is installed for when the grid fails. From what I have found out so far, once the grid fails you need to have a changoover switch, whether it be manual or automatic and as part of the changeover, when the generator (in our case a battery system) is brought in the Neutral and Earth connections need to be linked.
That is pretty much as far as freely available information goes. So, my question is, what else?
If the grid Earth connection is lost (afterall backup is for in case of lost grid) then there is no connection to the mass of earth. Wouldn't be an issue if we were floating in the sky not touching earth ourselves or using services that do contact earth. My assumption would be to fire a spike in, but where? adjacent MET and connect to MET? From memory the DNO don't like you adding earth connection after a TN split, though I could be wrong. Do we need to bond the body of the battery inverter so that it is just the same potential as the other services?
I can only assume that this is same no matter what the secondary generator is, battery, diesel, water @Canoeboy.
Any info would be greatly appreciated.
