I have been reading booklet on new genni and it suggests earthing genni. Is it necessary as Caravan is naturally earthed when van feet are down. and 3 pin power lead with earth ties genni to van and then earthing occurs am I correct?
-- Edited by jeepnudger on Wednesday 15th of December 2021 03:08:20 PM
Mike Harding said
03:56 PM Dec 15, 2021
No.
And it is safer if you do not - for a free standing installation, ie. a caravan on its own in a field.
Peter_n_Margaret said
05:43 PM Dec 15, 2021
Mike Harding wrote:
No.
And it is safer if you do not - for a free standing installation, ie. a caravan on its own in a field.
Correct.
This is also the recommendation of the electrical authorities.
You can not achieve a reliable earth with a caravan in any case. It is simply not possible.
HOWEVER, you should change the RCD to an RVD for better safety.
Cheers,
Peter
Mike Harding said
06:58 PM Dec 15, 2021
Peter_n_Margaret wrote:
>This is also the recommendation of the electrical authorities.
Actually it isn't but they are wrong.
>You can not achieve a reliable earth with a caravan in any case. It is simply not possible
Irrelevant: a caravan is a floating item.
Unless you have a situation where your caravan will be connected to both a generator/inverter *AND* the mains then don't earth it - there is no point in so doing and it probably increase the risk of shock.
kgarnett said
07:53 AM Dec 16, 2021
AS/NZS 3001:2008 ......Section 2, para 2.4.1 :
"When the portable generator or inverter is supplying a transportable structure, the generator or inverter and the transportable structure shall be equipotentially
bonded together by the supply lead and associated fittings.
Connection of the equipotential bonding system to an earth electrode is not required or recommended."
-- Edited by kgarnett on Thursday 16th of December 2021 07:54:42 AM
Mike Harding said
10:02 AM Dec 16, 2021
And as I stated to you in email a few weeks ago doing so increases the risk of shock.
SoloMC said
07:38 AM Dec 18, 2021
Many years ago NSW Workcover were going to require that every genny on a ute be connected to a earth rod driven into the ground.
thankfully they didnt go ahead with that idea. Things were moving ahead at warp speed re elcbs and very few knew how they actually worked
Aus-Kiwi said
10:08 AM Dec 18, 2021
Potential bond and earth ? We know the difference. The last thing you want is different potential between two devices ! Not necessary earth to ground !
I have been reading booklet on new genni and it suggests earthing genni. Is it necessary as Caravan is naturally earthed when van feet are down. and 3 pin power lead with earth ties genni to van and then earthing occurs am I correct?
-- Edited by jeepnudger on Wednesday 15th of December 2021 03:08:20 PM
No.
And it is safer if you do not - for a free standing installation, ie. a caravan on its own in a field.
Correct.
This is also the recommendation of the electrical authorities.
You can not achieve a reliable earth with a caravan in any case. It is simply not possible.
HOWEVER, you should change the RCD to an RVD for better safety.
Cheers,
Peter
AS/NZS 3001:2008 ......Section 2, para 2.4.1 :
"When the portable generator or inverter is supplying a transportable structure, the generator or inverter and the transportable structure shall be equipotentially
bonded together by the supply lead and associated fittings.
Connection of the equipotential bonding system to an earth electrode is not required or recommended."
-- Edited by kgarnett on Thursday 16th of December 2021 07:54:42 AM
And as I stated to you in email a few weeks ago doing so increases the risk of shock.
thankfully they didnt go ahead with that idea. Things were moving ahead at warp speed re elcbs and very few knew how they actually worked