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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> low voltage, downlights and 2 smoking transformers https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1233939943 Message started by seagull on Feb 6^th, 2009, 5:05pm

Title: low voltage, downlights and 2 smoking transformers
Post by seagull on Feb 6^th, 2009, 5:05pm

having given up installing low voltage downlights years ago (due to getting the odd call back for burnt out transformers) , I now only put in 240 volt fittings.....( with no re-calls to date).. I no i am going to sound a bit thick here but what was the big idea of using transformers in the first place? and should they all be enclosed fittings due to the fact the customer may melt their fingertips if they touch them... :-?

Title: Re: low voltage, downlights and 2 smoking transformers
Post by Lectrician on Feb 6^th, 2009, 8:13pm

ELV lamps give a far superior light, crisper and cleaner, and per watt.......brighter.

You need to ensure your you use decent trannies - There are many decent makes. JCC had issues last year, but recently they are fine. There are some more expensive makes too.

Tranformers need to be kept clear of insulation. This can be an issue in new builds, as even the ground floor ceilings are insulated.

I much prefer ELV to LV(mains). However, we probably fit a 50/50 of each.

Title: Re: low voltage, downlights and 2 smoking transformers
Post by seagull on Feb 6^th, 2009, 9:18pm

cheers lect,, the other thing i have noticed is that customers are now googling things and giving you a starter for ten..... I blame these cowboy builders programmes.... I dont need it on a monday morning
whilst unloading my tools, dealing with my hangover and thinking about the job ahead......... one guy started questioning me about 2-phase supply!!! :-?