-
Please use style selector to select BLUE AND WHITE. If you are not already on it. This notice will go once you're on the correct style.
This is quite rubbish, and very simple, but I'll put this up as it was a learning experience.
4 core 4mm SWA, already poked through a plasterboard wall and cut to approximate length, I had to clip it to the wall and terminate in a metal 3P DB. There was an additional 6mm CPC, as the aim was to reduce Zs on the dist board circuits as low as possible.
I was told to cable-tie the CPC to the SWA rather than clip it to the wall. I was told to use a closed 20mm rubber grommet to pass the CPC into the metal DB, rather than use a stuffing gland. The environmental conditions are not onerous at all. The cable is not near/over an escape route, so I was happy to use plastic clips. The run is level, the clips are 400mm apart, as per table D1 in the OSG. Bend radius is about 12cm (minimum ~9cm, table D5).
If I were to do the same job again, with the same limitations on fixing materials, I would measure the distance between the two 90 degree bends and work out how to space the clips evenly (making sure they were spaced <400mm apart), I would try to get the SWA more perpendicular to the top of the DB before making it off, and I would put the cable-ties on the other way round so the knobble was at the top out of the way.
This task (which took me over an hour, including terminating the SWA in the board) taught me that there's quite a lot to think about, even for a seemingly simple task. I know this won't win any medals, but I thought I'd share and I'd welcome any comments.
4 core 4mm SWA, already poked through a plasterboard wall and cut to approximate length, I had to clip it to the wall and terminate in a metal 3P DB. There was an additional 6mm CPC, as the aim was to reduce Zs on the dist board circuits as low as possible.
I was told to cable-tie the CPC to the SWA rather than clip it to the wall. I was told to use a closed 20mm rubber grommet to pass the CPC into the metal DB, rather than use a stuffing gland. The environmental conditions are not onerous at all. The cable is not near/over an escape route, so I was happy to use plastic clips. The run is level, the clips are 400mm apart, as per table D1 in the OSG. Bend radius is about 12cm (minimum ~9cm, table D5).
If I were to do the same job again, with the same limitations on fixing materials, I would measure the distance between the two 90 degree bends and work out how to space the clips evenly (making sure they were spaced <400mm apart), I would try to get the SWA more perpendicular to the top of the DB before making it off, and I would put the cable-ties on the other way round so the knobble was at the top out of the way.
This task (which took me over an hour, including terminating the SWA in the board) taught me that there's quite a lot to think about, even for a seemingly simple task. I know this won't win any medals, but I thought I'd share and I'd welcome any comments.
Heading of to the big Mainland for a job next week, so will have some pics hopefully! I think we're doing everything from laying 95mm2 3c SWA, and 95mm2 alu singles from plant to switchgear to tranny. and your usual lights sockets conduit/trunking work (plastic) in the fibreglass but. Looking forward to it even more now!! Haha.
D
Deleted member 78588
When I win can I have that Megger think in the first picure? The book doesn't have enough pictures in it for my liking and it's boring so I'll give it a miss if you don't mind.
As usual please mail my prize to Marvo when I win and I'll get it from him later.
Here's a DB I installed. It's pretty damn good and obviously better than the other stuuf shown so far but it's not my best work cause I ran of wire and sleeve so I had to make do with what I had but I think my method of swirling the wiring around the outside is much better and neater.
As usual please mail my prize to Marvo when I win and I'll get it from him later.
Here's a DB I installed. It's pretty damn good and obviously better than the other stuuf shown so far but it's not my best work cause I ran of wire and sleeve so I had to make do with what I had but I think my method of swirling the wiring around the outside is much better and neater.
i assume that the rat who made that nest is out of shot or deceased.
I'll be posting mine up next week when I strip my board and my tutor prints out the possibly new specs. this time around my conduit will be a lot better when i first did that board it was my first attempt at conduit and surprisingly fit together rather well with some "Gentle persuasion" and alot of foul language :lol:
Good luck fellas, a big thank you to GMES and Rob for this comp and being generous enough for these prizes.
Good luck fellas, a big thank you to GMES and Rob for this comp and being generous enough for these prizes.
Last edited:
Ok Doody I've made my mind up. Your doing the alarm panel change over a week on Saturday seen as you did a great job on the two new alarm installs last month. Make me proud and do a good job and post it up on here along side your college workshop board.
@ GMES. Is there any rules regarding a Trainee posting up more than one install/location?
@ GMES. Is there any rules regarding a Trainee posting up more than one install/location?
B
Bobster
Don't see why not, they can't be chosen to win both prizes though.
I get a little OCD with alarm panels ... Rather annoys me that the bellbox in that new build is using a different colour code to the rest of the zones :lol: and sweet, let me know when and I'll post both up that if it's okay to?
Two people = 2 prizes, I agree with that Rob.
The colours are only identification of conductors, up to you what to use for the bellbox. The PIR's are diffrent lol. Post up both Doody.
Rob and GMES, good call allowing one entrant to post more than one picture. I like that.
K
kevio123
College work of the day was a Lighting circuit with a ring circuit.. nothing fancy but we had to make sure it was tidy as being used as a display peice.. the twin and earth cable is not the best to be honest..
Hi everyone,
If...
OFFICIAL SPONSORS
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc
