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Installation batteries

Posted: Wed May 03, 2023 10:09 pm
by Dan L
I see nothing for EWOF check for current, 2022 standards or part 1 regarding a battery enclosure or loctation. For new install 2022 there's is plenty.


I know elv but Seems wrong to me exposed battery sitting out.

Could not find anything regarding this.

Is this acceptable. Example shown battery, charge and 12v circuit sitting under work bench in food truck?

Re: Installation batteries

Posted: Thu May 04, 2023 10:38 am
by AlecK
Correct there is nothing in current WoEF requirements WRT batteries; and not much that applies to ELV.

Note that ESRs require both LV & ELV (parts of) installations to comply with '3000"; and for connectable installations that's Part 2 + "3001".

The situation you describe is dangerous, but nothing to do with WoEF checks.
All you can do is advise.
Biggest risk here is that something conductive could fall onto the battery terminals, causing arc and possibly explosion.

As a food truck it's a place of work; so HSW rules apply.

Re: Installation batteries

Posted: Thu May 04, 2023 8:18 pm
by Dan L
Just clarify Even so for part 1 compliance for import? Can only advise on this situation.

Thanks.

Re: Installation batteries

Posted: Fri May 12, 2023 8:50 am
by AlecK
Part 1 is about fundamental principles; so best approach for a Part 1 Assessment is to follow through the various headings.

1.5.3 protection against shock; which is then detailed in 1.5.4 to 1.5.7
That's basic protection, fault protection, additiional protection (RCD), and basic + fault protections by ELV.
This is ELV, so nothing to complain of here.

1.5.8 protection against thermal effects (normal service);
nothnibg wrong here either

1.5.9 protection against overcurrent
insufficient info in this image to make a judgement

etc, etc

The obvious problem here is the risk of something conductive falling onto the battery terminals,
causing a short circuit arc and possibly an explosion
That comes under 1.5.14 protection against external influences

There's also the fact that any gas given off from the battery is not vented to exterior
For lead/acid battery, that's hydrogen being emitted into a space where there are very likely to be ignition sources.
That's 1.5.12, protection against spread of fire.

I wouldn't issue a WoEF for an import;
but for a NZ-built there's nothing in App C that I could use to fail it.


This sort of unthinkingly unsafe installation is exactly why the new "3001" includes rules for ELV aspects, in particular batteries & PV