I thank you kindly for your advice, but its not good news, .....we need to get rid of these linear regulators as they are running well hot.....theres no room inside the lamp enclosure for the smps.....we have to put it in the rear lamp control unit, and run the 60v to the lamp from there.
Surely in this day and age, running 60v to a lamp is manageable?
60 volts is within SELV limits...the 48V refers to AC I thought?
The rear lamp control PCB will be in an enclosure... and the wires with 60V , which run to the lamps, will be within shrouded connectors...
The 60V is the output of a power limited (12W) SMPS....its nothing dangerous surely?
I must say I've zapped myself on voltages from 80VDC, to 230VAC, even touched the drain of a flyback that was going up to 1000V......also used to test 10W, 500V SMPS's whilst working at a scanning microscope place...used to shock myself on it every day because it was impossible to do the test without shocking oneself.
I must confess I wasn't shocking with one hand connected to the circuits ground return.
At one company, who were developing a mains lighting product, I was the company's "shock dummy"...they would get me to touch conductors to test the shockability just in case installers might touch it......I only grabbed the conductors between thumb and forefinger...but some of them left me with strange numb feelings inside the finger for several days after ward.
However, surely no one can touch inside a shrouded connector?