I had a call out to a shop today regarding some lighting not working in the store room and toilets,, so a quick look to confirm (and yes, no lights), check board and a MCB has tripped so I put it back on and go into the stores -- big time fizzing noise coming from a 360deg PIR so I quickly go back and turn the MCB back off.
The PIR was well and truely burnt out so I replaced it and checked on the lights.. 9 x 70w twin flourescents... all running from a PIR that has a max rating of 500W (for flourescents).. So I did what I could.. took out one tube out of each fitting; I know it's still not within it's rating but it's better than it was...
Recommended to customer that the fittings should be switched via a contactor...
The PIR was well and truely burnt out so I replaced it and checked on the lights.. 9 x 70w twin flourescents... all running from a PIR that has a max rating of 500W (for flourescents).. So I did what I could.. took out one tube out of each fitting; I know it's still not within it's rating but it's better than it was...
Recommended to customer that the fittings should be switched via a contactor...