One problem with setting up one safety standard is whose universal principles will you follow? Historically, the radio/TV people put out product in wooden enclosures (I guess I am showing my age as well). So their principles forbade sparks and things igniting inside the cabinet. The IT industry has the concept of a fire enclosure, so that what goes on inside is OK, provided nothing gets outside, per 950, and damage is confined to a small area, per the (non-safety) K series of the ITU recommendations. Either approach would seem valid, in that nobody's house will burn down. So if two approaches can reach the same goal, which is the one that will be chosen? Or do we have the ONE standard that offers the fire enclosure option or the option of preventing internal hot-spots?
Regards, Frank McCaughey Consultant
