Caravan park Earthing

[Bradley6969]

Is TNS permitted on caravan site? I always thought you could use as TNS as supply cable then TT each pitch, spark I’m working with says you can use TNS all way through if ZS is acceptable
Thanks

 

[bigspark17]

The spark your working with is correct! Are you aware of the new interlock sockets required now on new pitch supplies as of jan 19?

 

[Bradley6969]

The spark your working with is correct! Are you aware of the new interlock sockets required now on new pitch supplies as of jan 19?

Thanks mate and yes I heard about them, we are just doing EICR I suppose there a good idea still seeing people driving off with them plugged in still

 

[Deleted member 26818]

You need to ensure PME conditions don’t apply.

 

[Nigel]

You need to ensure PME conditions don’t apply.

Excuse me?

 

[bigspark17]

Excuse me?

ESQCR prohibits the use of pme to supply a caravan pitch

 

[DPG]

It's TNS he's asking about.

 

[bigspark17]

No essex was quoting spin on pme!

 

[DPG]

No essex was quoting spin on pme!

Yeah sorry - I was trying to point out that the OP was specifically asking about TNS.

 

[bigspark17]

Yeah sorry - I was trying to point out that the OP was specifically asking about TNS.

Yes i answered to the OP in post 2

 

[DPG]

Yes i answered to the OP in post 2

I know, and then it started going down the PME route!

 

[bigspark17]

I know, and then it started going down the PME route!

Any questions regarding caravan sites end up down the PME route haha

 

[Nigel]

I know about PME. I want to know how one determines that a TN-S does not have PME conditions.

 

[Deleted member 26818]

Here we go.
Just because the supply to the installation is TN-S, doesn’t mean PME conditions do not apply.
It’s why BS7671 states “where PME conditions apply”, rather than saying “where the earthing system is TN-C-S”.

Yes ESQCR does prohibit the use of PME for Caravan pitches.
However it does not prohibit the use of PME for static Caravans or for other permanent structures on Caravan sites.

 

[bigspark17]

Here we go.
Just because the supply to the installation is TN-S, doesn’t mean PME conditions do not apply.
It’s why BS7671 states “where PME conditions apply”, rather than saying “where the earthing system is TN-C-S”.

Yes ESQCR does prohibit the use of PME for Caravan pitches.
However it does not prohibit the use of PME for static Caravans or for other permanent structures on Caravan sites.

ESQCR are does NOT allow pme conditions to a static caravan! It does allow it for buildings on parks, not the vans themselves

 

[Deleted member 26818]

ESQCR are does NOT allow pme conditions to a static caravan! It does allow it for buildings on parks, not the vans themselves

Here is a quote from BS7430 (earthing Code of Practice):

"NOTE Residential caravans which are not normally intended to be moved from a caravan park are regarded as permanent buildings."

 

[Nigel]

Here we go.
Just because the supply to the installation is TN-S, doesn’t mean PME conditions do not apply.
It’s why BS7671 states “where PME conditions apply”, rather than saying “where the earthing system is TN-C-S”.

Yes ESQCR does prohibit the use of PME for Caravan pitches.
However it does not prohibit the use of PME for static Caravans or for other permanent structures on Caravan sites.

If it is as you put it ‘A TN-S with PME conditions’ then it is not a TB-S is it?

It is up the the DNO to ensure their supply arrangement is vlear nit for us to go around asking questions.

 

[Nigel]

Here is a quote from BS7430 (earthing Code of Practice):

"NOTE Residential caravans which are not normally intended to be moved from a caravan park are regarded as permanent buildings."

Regardless, BS7671 is clear that a PME cannot be used.

 

[Deleted member 26818]

Not sure what TB-S is?

 

[Deleted member 26818]

Regardless, BS7671 is clear that a PME cannot be used.

No, it’s not.
From BS7671 Definitions:
Caravan. A trailer leisure accommodation vehicle, used for touring, designed to meet the requirements for the construction and use of road vehicles (see also definitions of Motor caravan and Leisure accommodation vehicle).