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Posted By Topic: Direct UK Imported Caravan by Owner

Apr 12 2018 19:47

Owner has asked me to do the WOEF for said caravan.
Any specific UK issues I should look out for.

Dont do and try and keep away from motor homes caravans etc

Yes I have the Standard and have/am reading it

Apr 12 2018 21:16

AS/NZS 3001 will be of little use to read as all imported caravans from Europe need to be assessed using a Part 1 solution. ESR 2010 regulation 78 (2) (c) refers.

Most of the requirements to which a Part 1 a solution (or assessment) is used must fully comply with are located in Part 1 of AS/NZS 3000, sections 1.5, 1.6 and 1.7.

Unless you are able to fully understand Sections 1.5, 1.6 and 1.7, Fundamental Safety Outcomes, you will be unable to safely make the Part 1 assessment required to the issue of WoEF.

You will in the short term need to find someone who knows that part of AS/NZS 3000 very well and fully understands how to convert those safety outcomes into an hardware, and than be able to test that all the safety outcomes required are being delivered using test instruments.

There are some major changes coming for the issuing of WoEF for overseas bult (European) caravans and motorhomes but they will NOT be completed to early 2019, so these pending changes are currently NOT complete and will be of NO practical use to you or to anyone else in the short term.

Apr 13 2018 12:24

You should be aware that much of the wiring in UK vans is 3 core flex. Nothing wrong with this as it goes but they use moles style plugs all over the place. For example most of the power points will have a short bit of flex and then a plug to connect it to the fixed portion of the wiring. These plugs apparently do not comply with some aspects with respect to current rating and fire resistance.
Also the wiring may be run under the sandwich style floor construction using p clips. This in my opinion is insufficient protection from mechanical damage. Ie gravel roads in NZ.
The wiring may also be plugged into the back of the switchboard using the same style plugs. These plugs can sometimes cause high resistance readings when doing your continuity checks.
And the RCD will be the wrong type almost certainly.

Apr 13 2018 13:55

Some other background information

As a general rule European caravans will comply with IEC 60364 and IEC 60364-7-721 (international wiring rules in which our AS/NZS 3000 are based on) or BS 7671 (UK Wiring Rules).

The new edition of IEC 60364-7-721 Ed 2 (06/2017) does not allow the installation couplers to be located anywhere except at fittings (light switches and socket outlets) so I would expect an improvement in the placement of insulation couplers in the future for new caravans. It may take sometime before this improvement will occur in used caravans.

Apr 13 2018 14:52

The connectors used are not installation couplers. They are nasty items similar to those used for some ELV applications (as found in Jaycar & similar), and they typically mean that basic insulation is accessible. Some provide access to live parts without use of a tool. They are used because no electrician has anything to do with assembling the caravan. Instead a wiring loom is placed on the floor, then the walls & furniture are built around that and finally the switchboard, appliances & accessories are plugged into the loom. cheap and definitely nasty.

Apr 13 2018 18:06

(2)Every warrant of electrical fitness for a connectable installation must be issued in accordance with AS/NZS 3001, except that a warrant of electrical fitness for a connectable installation—

(a)in a pleasure vessel must be issued in accordance with AS/NZS 3004.2; and

(b)in a mobile medical facility must be issued in accordance with NZS 6115; and

(c)that has been imported must be issued in accordance with AS/NZS 3001, but only after an assessment for compliance with Part 1 of AS/NZS 3000.