General Car Related Discussion. To discuss anything that is related to cars and automotive technology that doesnt naturally fit into another forum catagory.

sparky help needed again.

Thread Tools
 
Search this Thread
 
Old Nov 7, 2010 | 05:00 PM
  #1  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default sparky help needed again.

So a few weeks I asked about how to power up a static caravan that my parents use in the back garden.

Its going to be connected and tested properly however the cable run and entry into the house will ne done by me.

The house end is below.
I believe there is an issue here as their is only a 20Amp slot spare.


The caravan end is below
it has a 32amp and 2 6 amp


so what sort of feed needs to go to house?
30 Amp or bigger?
Do i need a new consumer board?
will the van need earth or will it come from house?
What core size will i need for awc cable?
please help

Lee
Reply
Old Nov 7, 2010 | 06:09 PM
  #2  
vaughant's Avatar
vaughant
PassionFord Post Whore!!
iTrader: (1)
 
Joined: Jun 2008
Posts: 6,807
Likes: 0
From: south wales, swansea
Default

Originally Posted by L33BYT
So a few weeks I asked about how to power up a static caravan that my parents use in the back garden.

Its going to be connected and tested properly however the cable run and entry into the house will ne done by me.

The house end is below.
I believe there is an issue here as their is only a 20Amp slot spare.


The caravan end is below
it has a 32amp and 2 6 amp


so what sort of feed needs to go to house?
30 Amp or bigger?
Do i need a new consumer board?
will the van need earth or will it come from house?
What core size will i need for awc cable?
please help

Lee
I'd say,although I'm not really a domestic boy but I've done a bit so:
1. Generally your feed in the board should be larger than the largest switch in the caravan.
2.32amp or above,problem being if what your feeding from is smaller,then that will trip first,so any faults in the van will show up in the house first,inconvenience more than anything.
3.Not really,if it works and is safe that's fine,certainly legal.
4.The van won't necessarily need additional earthing but it won't harm to do,your earth should come via the armoured or you can buy three core,use one of the spare cores as an earth and connect that up to the earthing block,personally I'd put an earthing rod outside the van and use that.
5.I'd go for 6mm myself,better safe than sorry.price wise there's not much in it really,use tlc for your bits,get their really good on price and their gland kits are superb,come with all the bits you need!!!
Reply
Old Nov 7, 2010 | 06:15 PM
  #3  
cozzy940's Avatar
cozzy940
Too many posts.. I need a life!!
 
Joined: Sep 2006
Posts: 789
Likes: 0
From: norfolk
Default

db has no rcd protection ideally should be replaced with 17th dual rcd board to comply with regs, 6mm swa fine, stake van end,
Reply
Old Nov 7, 2010 | 06:21 PM
  #4  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default

Originally Posted by cozzy940
db has no rcd protection ideally should be replaced with 17th dual rcd board to comply with regs, 6mm swa fine, stake van end,

i didnt show it but there is a seperate rcd before the cb. i know its not ideal as if it goes it does the whole lot.
Reply
Old Nov 7, 2010 | 06:28 PM
  #5  
Rsmat's Avatar
Rsmat
Professional Waffler
20 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: May 2004
Posts: 27,262
Likes: 585
From: either at work or on way :)
Default

Ask danneth on here he`s a good sparky Lee.
Reply
Old Nov 7, 2010 | 06:35 PM
  #6  
caprizetec170's Avatar
caprizetec170
Too many posts.. I need a life!!
 
Joined: Nov 2009
Posts: 776
Likes: 0
From: ireland
Default

ah not sure what regs are over there but 4mm sq swa should be plenty with shield an earth connacted to earthing rod outside. dont know why your internal sockets have 32 amp breaker should be only 20 other than cooker and have a main fused breaker and an rcd breaker for sockets only not lights
Reply
Old Nov 7, 2010 | 06:44 PM
  #7  
danneth's Avatar
danneth
TORQUE!
 
Joined: Sep 2006
Posts: 11,756
Likes: 3
From: Sheffield
Default

From what i can see it looks like the best way to do it is, come out of the DB in the house into a adaptable with some 6mm T+E then from the adaptable box in some 6mmSWA go straight into the DB in the caravan it looks like there is already an RCD in the caravan, then find out what kind of current your going to be using and find a breaker to suit for the DB in the house
Reply
Old Nov 7, 2010 | 07:03 PM
  #8  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default

Originally Posted by danneth
From what i can see it looks like the best way to do it is, come out of the DB in the house into a adaptable with some 6mm T+E then from the adaptable box in some 6mmSWA go straight into the DB in the caravan it looks like there is already an RCD in the caravan, then find out what kind of current your going to be using and find a breaker to suit for the DB in the house
Danneth,

The yellow colour code on the consumer board, i take it that it is implicitally for a 20amp mcb?
your above info seems very straight forward. I take it as you mention twin and earth i would use the house earth?
Reply
Old Nov 7, 2010 | 07:14 PM
  #9  
art411y's Avatar
art411y
Too many posts.. I need a life!!
iTrader: (1)
 
Joined: Oct 2004
Posts: 536
Likes: 0
From: grimsby
Default

sound advice above.if for some reason you do get niusance triping, a main cause could be that you are using an rcd to run another rcd.it can cause noise on the line with both rcds talking to each other
Reply
Old Nov 7, 2010 | 07:24 PM
  #10  
focusv8's Avatar
focusv8
PassionFord Post Whore!!
20 Year Member
Liked
Loved
 
Joined: Sep 2004
Posts: 4,773
Likes: 86
From: Nottingham
Default

Originally Posted by L33BYT


The yellow colour code on the consumer board, i take it that it is implicitally for a 20amp mcb?
your above info seems very straight forward. I take it as you mention twin and earth i would use the house earth?
The yellow 20amp can be changed for a 32amp (red)

Use the house earth.

And use a Steel (galv) box at each end to terminate the SWA in, it's the easiest way;

http://cgi.ebay.co.uk/ADAPTABLE-BOX-...item3f01f38587


.
.

Last edited by focusv8; Nov 7, 2010 at 07:26 PM.
Reply
Old Nov 7, 2010 | 07:38 PM
  #11  
cossie330's Avatar
cossie330
I've found that life I needed.. It's HERE!!
iTrader: (1)
 
Joined: Mar 2006
Posts: 1,134
Likes: 21
From: Suffolk
Default

Hi, what you need to do to comply with section 7 of the 17 th edition regs is fit a 32amp breaker in place of that spare 20amp one in the house, run a length of 6mm twin and earth to an adaptable box and convert to steel wire armoured cable to run to the caravan. The swa cable need only be 2 core 6mm as you need to segregate the earth at the caravan end and fit an earth rod and connect that to the caravan disboard with some 10mm green and yellow 6491x cable, then test your earth loop impedance and make sure it's under 200 ohms.
Also make sure you connect the steel armour to the house earth only
Cheers Jason
Reply
Old Nov 7, 2010 | 07:48 PM
  #12  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default

Originally Posted by cossie330
Hi, what you need to do to comply with section 7 of the 17 th edition regs is fit a 32amp breaker in place of that spare 20amp one in the house, run a length of 6mm twin and earth to an adaptable box and convert to steel wire armoured cable to run to the caravan. The swa cable need only be 2 core 6mm as you need to segregate the earth at the caravan end and fit an earth rod and connect that to the caravan disboard with some 10mm green and yellow 6491x cable, then test your earth loop impedance and make sure it's under 200 ohms.
Also make sure you connect the steel armour to the house earth only
Cheers Jason
so just one query with that yellow marker, that will be fine to have a 32amp breaker in its place. I guess what i am saying with a lack of knowledge is why is that pre coloured yellow?
Reply
Old Nov 7, 2010 | 07:53 PM
  #13  
St3V3_C's Avatar
St3V3_C
PassionFord Post Whore!!
20 Year Member
Liked
Loved
 
Joined: May 2003
Posts: 9,608
Likes: 45
From: Bristol
Default

No 16A socket this time?
Reply
Old Nov 7, 2010 | 07:53 PM
  #14  
focusv8's Avatar
focusv8
PassionFord Post Whore!!
20 Year Member
Liked
Loved
 
Joined: Sep 2004
Posts: 4,773
Likes: 86
From: Nottingham
Default

Originally Posted by L33BYT
I guess what i am saying with a lack of knowledge is why is that pre coloured yellow?
The colour makes it easier to identify the fuse / mcb size for replacement, although now it's mcb you don't replace anywhere near as often.

As the size of fuse / mcb increases the slots in the holder and blades on the fuse carrier / mcb get bigger.

That means you can't fit a 32amp fuse / mcb in a 6 amp holder.

.

Last edited by focusv8; Nov 7, 2010 at 07:54 PM.
Reply
Old Nov 7, 2010 | 07:56 PM
  #15  
danneth's Avatar
danneth
TORQUE!
 
Joined: Sep 2006
Posts: 11,756
Likes: 3
From: Sheffield
Default

Originally Posted by L33BYT
Danneth,

The yellow colour code on the consumer board, i take it that it is implicitally for a 20amp mcb?
your above info seems very straight forward. I take it as you mention twin and earth i would use the house earth?

As said mate yes thats just colour identification just find yourself another 32A breaker and holder ( i might actually have one if your struggling ) and use the houses earth
Reply
Old Nov 7, 2010 | 08:04 PM
  #16  
cossie330's Avatar
cossie330
I've found that life I needed.. It's HERE!!
iTrader: (1)
 
Joined: Mar 2006
Posts: 1,134
Likes: 21
From: Suffolk
Default

Originally Posted by L33BYT
so just one query with that yellow marker, that will be fine to have a 32amp breaker in its place. I guess what i am saying with a lack of knowledge is why is that pre coloured yellow?
What you need to do is turn the fuse board off then remove the yellow marker and replace it with a red one and a 32 amp breaker
Reply
Old Nov 7, 2010 | 08:06 PM
  #17  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default

Originally Posted by St3V3_C
No 16A socket this time?

no was of the 32 amp variety not 16. Had only had a quick look initially.
Reply
Old Nov 7, 2010 | 08:07 PM
  #18  
L33 BYT's Avatar
L33 BYT
Thread Starter
PassionFord Post Whore!!
 
Joined: Jul 2003
Posts: 7,482
Likes: 0
From: SUFFOLK
Default

Originally Posted by cossie330
What you need to do is turn the fuse board off then remove the yellow marker and replace it with a red one and a 32 amp breaker

ah i see they come with the backing

http://www.diy.com/diy/jsp/bq/nav.js...&isSearch=true
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
biggiejody
Insurance
4
Sep 2, 2015 12:04 PM
Sultzi
Restorations, Rebuilds & Projects.
12
Aug 16, 2015 01:08 PM
Ben26
Restorations, Rebuilds & Projects.
3
Aug 11, 2015 04:19 PM
col93saphcos
Ford Sierra/Sapphire/RS500 Cosworth
5
Aug 7, 2015 03:21 PM




All times are GMT. The time now is 05:36 AM.