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Thanks for sharing.
The UL should rewrite the rules that all AC items should have a fuse inline including CFL,LED lighting,Wall warts ,Kitchen Appliances and the list can go on. I'm tired seeing these fuseless crap devices killing people with fires . It would not hurt on the DC devices too with the powerful batteries. |
#2
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Most electrical fires are caused by misapplication of the items and most are items over ten years old. |
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I have two fibre-optic Christmas trees, one has an AC motor driven color wheel and the other one doesn't. I grabbed the wrong, lower current wall-wart and used it on a higher current tree. Within a half hour the thermo-fuse did it's job, open primary. I found another at a thrift, for a buck. |
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You can find Beryllium oxide in home use tranzistor radios or that used only in big power stuff?
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I've had the odd nasty shock from electronics kit but only one that might have been lethal. I was troubleshooting a 'scope and measuring the EHT on the CRT cathode. About -1.2kV DC. The insulation of the probe wasn't good enough and I got a belt. It hurt. A lot. Mainly due to violent muscle contraction, my arm ached for a couple of days. Fortunately I was also thrown clear by the muscle spasm. That EHT was derived from a mains transformer so there would have been plenty of current available to kill me. By contrast when 25kV EHT from a Barco monitor jumped out and bit me it was like a bad insect sting. More current available than on a domestic TV but still nowhere near enough to be dangerous. The only real hazard was mechanical. I might have jumped back and hit my head on something. Last edited by ppppenguin; 01-23-2016 at 02:05 AM. |
Audiokarma |
#6
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The main item, that I have a lot of respect for is the power supply in a microwave oven. The transformer in those puts out over 1000 volts at around an amp. Enough to be fatal. |
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