chrbb Posted November 28, 2006 Posted November 28, 2006 Why is nothing easy? The bulb went in our fixed projector and was out of stock everywhere, so we decided to order a replacement projector, then found out that because our old projector was fitted five years ago the wiring and cables are not up to todays regs and we now need asbestos and structural surveys and new electrics to install the new projector. Is it just me or does this happen everywhere?
Andrew_C Posted November 28, 2006 Posted November 28, 2006 The wiring regs have _not_ changed in the last five years. Someone is taking the piss, royally! Edit:- However, they will be in summer '08. Draft of the 17th Edition of the wiring regs is out for consultation in a week or so. Not sure yet if it will have major impact on our work. Will read and report back!
plexer Posted November 28, 2006 Posted November 28, 2006 Unless it wasn't installed correctly in the first place? Ben
john Posted November 28, 2006 Posted November 28, 2006 What a load of tosh, all you should need to do is remove the mouting bracked from the old one, fit the new one to it and away you go. UNLESS you need to physically move the projector closer to the board / screen due to new projectors having much increased focal lenght on them comapired to old ones, I have had this and that will then casue the mentioned issues.
chrbb Posted November 28, 2006 Author Posted November 28, 2006 Yes I thought it would be as easy as new projector poss new bracket to fix on end of pole. But the projector mains cable isn't 'hard wired'? it just plugs in an ordinary socket and the adaptor at the end of the cable that goes through the ceiling and down the pole isn't moulded and apparently won't fit the new projector. I trust the company that are giving the advise but just wish everything wasn't so complicated.
plexer Posted November 28, 2006 Posted November 28, 2006 What is the current end on the power lead a small figure 8 and the new projector is a clover leaf one? Ben
john Posted November 28, 2006 Posted November 28, 2006 I think its a money making job that this firm are on, I had one once say this, just so they can hard wire it into a new fused spur, but they will then say that the wiring doesn't meet code so they cannot certify the work and thus you need to have X amount of remedia workd to fix some of the other issues they find.
chrbb Posted November 29, 2006 Author Posted November 29, 2006 It looks like an ordinary computer kettle type connector to me, but it isn't moulded. I haven't got the new projector out the box yet (we're using it as a mobile til all this is sorted) so I'll know more at the end of the day. Looks like the new one is security coded and will only work with a remote so now have find somewhere to tie it to! Things like that disappear in our school and it's not the children!
webman Posted November 29, 2006 Posted November 29, 2006 Ask them which regulations the current setup doesn't meet so you can confirm it.
CyberNerd Posted November 29, 2006 Posted November 29, 2006 We've had similar problems, not due to wiring regulations but because our older and obsolete projectors have a different projection distance than newer ones. Consequently the mounting and sometimes the wiring needs to be re-fitted for the new projectors to fit the screens.
russdev Posted November 29, 2006 Posted November 29, 2006 The wiring regs have _not_ changed in the last five years. Someone is taking the piss, royally! Edit:- However, they will be in summer '08. Draft of the 17th Edition of the wiring regs is out for consultation in a week or so. Not sure yet if it will have major impact on our work. Will read and report back! Technically they have changed in minor parts major part is all new wiring must use eu wiring colour coding and not old one.. But that dosnt stop old wiring be outdated or anything best thing is ask which parts are not up tp code and what code number has changed and get it checked out... Russ
chrbb Posted November 29, 2006 Author Posted November 29, 2006 Old projector kettle type lead - new epson projector figure of eight lead. Are there any current projectors that still have kettle leads? This one was recommended to us, which would be fine if it was for a new installation.
plexer Posted November 29, 2006 Posted November 29, 2006 It's a long extension with a kettle end fixed on by the sounds of his previous post. You haven't got an apc ups that came with a spare kettle lead socket do you? then you could cut then plug of the new figure of eight lead and add that socket to it. Ben
chrbb Posted November 29, 2006 Author Posted November 29, 2006 Sorry lost the plot here a bit, the old fixed projector has a kettle type socket on a cable that runs up the wall through the ceiling and down a pole. The new projector that is to be fixed to the old installation has a figure of eight socket, the company that supplied it said we would need a new cable running to a hard wired socket. If I could get a projector with a kettle lead then maybe our electrician could just rewire the current cable so it is hard wired and not just plugged into a socket. I'm just a plain and simple technician that doesn't do cutting wires and adding sockets! Also I'm female.
john Posted November 29, 2006 Posted November 29, 2006 Projectors are fine plugged into sockets, thats how most are, but normally a socket hidden in the ceiling so fiddlers cannot turn them off at the wall. What you need to get is just a very long figure 8 power lead, as yes, Epson are going figure 8 leads for everything, which in a way is great as they are thinnner and smaller for use in poles with a lot of cabling in them. But you should be able to find one, or why can't your electrician just remove the IEC plug that you said was wired on the end of the wire and wire on a re-wirable figure 8 plug instead?
SteveT Posted November 30, 2006 Posted November 30, 2006 ..... or chop end off existing cable; chop plug off new cable; join cables together using terminal block and chocbox? Screwfix 30amp terminal block 85 pence terminal block Chocbox 99 pence Chocbox
plexer Posted November 30, 2006 Posted November 30, 2006 0.85 + 0.99 + 6.00 bit expensive. Have a word with your caretaker and see what he can do? Or just let them get on with it? Ben
chrbb Posted November 30, 2006 Author Posted November 30, 2006 Electricians coming next week, we are having smartboards and fixed projectors fitted soon, the caretaker isn't allowed to do electrical work we have to have 'tradesmen' in. Whats struck me though is that the company we're dealing with are supplying epson projectors throughout, so the wiring will be specific for epson projectors ie figure of eight connectors, so if we decide 3 years down the line to opt for another make that uses the three pin kettle plug, we'll need rewiring again! Do you all do your own electrics or do you, like me have to get people in? I thought there were so many regs etc that you have to be up to speed on that only 'electricians' have to do anything that's more involved than changing a fuse.
plexer Posted November 30, 2006 Posted November 30, 2006 We have electricians in for major works but what I meant was see if you caretaker can change the end for one that will fit. Ben
Andrew_C Posted November 30, 2006 Posted November 30, 2006 Whats struck me though is that the company we're dealing with are supplying epson projectors throughout, so the wiring will be specific for epson projectors ie figure of eight connectors, so if we decide 3 years down the line to opt for another make that uses the three pin kettle plug, we'll need rewiring again! There is NOTHING specific about installed wiring. All you need to do is change the lead. Or do you allow non-16th edition wiring? A 13A socket is a 13A socket. You do not need an electrician to take the old cable out of a drop bar and put a new one in.
plexer Posted November 30, 2006 Posted November 30, 2006 True if the are running it from a fused spur then it should terminate at the ceiling in a 13a socket. Then you plug in the lead supplied with the projector into and that into the projector, therefore if you change projectors in the future you just unplug the lead and change for the new one. Ben
chrbb Posted November 30, 2006 Author Posted November 30, 2006 Right with it now, sorry for being so thick, it will be running from a fused spur but now I realise you can get rewireable connectors to change from one type of connector to another. With the company telling me it had to be a moulded connector I got the impression that once the cable is in thats it, but I can see now with a rewireable connector all is not lost. Cheers. It's been a long term!
plexer Posted November 30, 2006 Posted November 30, 2006 It's not even going to be a case of using a rewireable connector as I said you should just end up with a ceiling mounted 13amp socket, into that you can plug any sort of lead as long as it has a 13amp plug on one end. Ben
Ste_Harve Posted December 1, 2006 Posted December 1, 2006 We've got 30 projectors that are ceiling mounted and all of them are run from a socket on a fused spur in the ceiling. Would never have it hard wired as when you change projector you can't guarantee having the same power connector. I'm not aware of any regs that say it must be hard wired. I know that you've got to be able to isolate it but I think that's down to local council policy.
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