B
buff3r
ecco ce l'ho fatta
prova ad accorciare il cavo di 5 10 cm , mi sembra di aver letto qualcosa di simile , forse era noreason ?
l'articolo l'ho trovato quiHigh Pressure Sodium Lamp Repeatedly Goes Out for 1-3 Minutes After Warming Up:
The lamp warms up and as soon as it is warmed up, or maybe several minutes after warming up, it goes out. Maybe it takes about 3 minutes to relight, but in fixtures available from home centers it usually relights in closer to 1 minute with often a little dim orange-yellow glow at times before it relights:
This is usually "end of life cycling". That is a characteristic of the bulb. Replace the bulb and this common problem is fixed.
Less likely, the problem is a reflector that returns light to the arc tube in the bulb and overheats it