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Topic Title: Water on live parts
Topic Summary: PART TWO
Created On: 13 April 2014 11:30 AM
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 13 April 2014 11:30 AM
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SKElectrical

Posts: 910
Joined: 01 February 2009

I wanted to keep these discussions specific hence the two part conversations.

Water (rainwater) is getting into the DB enclosure. Cables are terminated top entry - this was always going to cause problems:

I am looking for a 4 way IP55 DB (170 x 105 x 100) which is flanged for EXTERNAL fixing points so that the interior IP integrity is not compromised when "mounting". Such as the flanges seen on the adaptable box: ( I cant find this design for DBs!!!!! )
http://www.ebay.co.uk/itm/1908...K%3AMEBIDX%3AIT



In addition I would like the back (box) of the DB to be as deep as possible i.e. the back box dimensions to be say 80mm deep and the front cover (lid) to be just 20mm or less. This is obvious and simple design! Currently I can only find DBs with back boxes and front covers of equal dimensions.



Rubbish currently used:
http://www.ebay.co.uk/itm/Gewi...ET&hash=item5d46092c41
 13 April 2014 11:38 AM
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SKElectrical

Posts: 910
Joined: 01 February 2009

Furthermore,
I don't want the enclosure to have cover retaining points in the corners but rather such as: http://www.ebay.co.uk/itm/2613...me=STRK%3AMEBIDX%3AIT

AND..
flat plastic, i.e. no bloody pre scibed markers for hole entry

Grrrrrrrrrrrrrhhhhhh!
 13 April 2014 08:25 PM
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peteTLM

Posts: 3142
Joined: 31 March 2005

why dont you fit suitable compression glands on the top entry cables?

Never seen a DB enclosure with outboard fixing lugs, but i suppose you could bond an enclosure to a sheet of ali and use it that way.

The Gewiss ones are among the better examples for small DB enclosures, so you might as well give up then.

-------------------------
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Lack of planning on your part doesn't make it an emergency on mine....

Every man has to know his limitations- Dirty Harry
 13 April 2014 08:38 PM
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Fm

Posts: 655
Joined: 24 August 2011

Hager do IP rated DB's
 15 April 2014 02:12 PM
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AJJewsbury

Posts: 11367
Joined: 13 August 2003

I am looking for a 4 way IP55 DB (170 x 105 x 100) which is flanged for EXTERNAL fixing points so that the interior IP integrity is not compromised when "mounting". Such as the flanges seen on the adaptable box: ( I cant find this design for DBs!!!!! )

Some of the "continental" origin enclosures I've worked with seem to maintain the IP rating without ulgy external lugs, usually either:
1. Fixing points are recessed into the thick back - supplied covers (look like soft screw caps) fit into the recess over the mounting screw to seal the hole, or
2. Fixing points are near the corners, inside the box, but outside the lid seal - effectively the box is double-skinned at that point - outer skin provides the cosmetic box shape, inner skin the IP rating.

Both approaches also seem to maintain the class 2 protection of the enclosure too (just in case you're mounting it on something conductive) - our continental cousins seem to have such things worked out a bit better than us in that respect.

- Andy.
 15 April 2014 10:06 PM
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SKElectrical

Posts: 910
Joined: 01 February 2009

Yes but "ugly external lugs" used as a fixing point guarantee 100% no compromise of IP rating. I bought the MK 'garage enclosure' today - a very good enclosure, spacious, smooth walls, earth and neutral bars, but 5mm too wide!
I think Schneider do one called 'Kaedra', which looks similar so will have to check their dimensions.
 15 April 2014 10:10 PM
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SKElectrical

Posts: 910
Joined: 01 February 2009

Originally posted by: SKElectrical
I think Schneider do one called 'Kaedra', which looks similar (to MK's weatherproof enclosure).


Yep, it's IDENTICAL.
 27 April 2014 04:17 PM
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rayhanabu

Posts: 1
Joined: 27 April 2014

It is a great discussion. Thanks to all participants.
 27 April 2014 07:13 PM
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davebarman

Posts: 285
Joined: 27 February 2006

Originally posted by: rayhanabu

It is a great discussion. Thanks to all participants.



WOW its amazing how boring some people really are

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 27 April 2014 07:42 PM
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mantutu

Posts: 42
Joined: 16 June 2013

The IP rating of any board will be declared if fitted to the manufacturers installation instructions.
Having declared a rating they are not going to have that rating downgraded by poor installation methods. There are many boards available that are IP rated above and beyond your requirement, if fitted correctly no loss of rating is expected.
 27 April 2014 08:02 PM
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phantom9

Posts: 673
Joined: 16 December 2002

Slight digression (sorry SK) Top entry is technically not allowed on non-IP rated CUs either becasue of the min IPX4 requirement. It is amazing how many I find fitted with cables galore along the top of the casing. The neat trick with a piece of trunking I spotted years ago on a job and was impressed with the simplicity of overcoming this problem.
 27 April 2014 08:59 PM
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redtoblackblewtopieces

Posts: 204
Joined: 10 January 2013

Think its ip4x or ipxxd , no moister requirment
Kevin

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Compliance by Approved Documents
 27 April 2014 09:29 PM
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impvan

Posts: 753
Joined: 07 September 2005

Originally posted by: davebarman

Originally posted by: rayhanabu



It is a great discussion. Thanks to all participants.






WOW its amazing how boring some people really are


Coming soon, cheap kitchens courtesy of rayhanabu.
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