31 Jan '17, 7pm

Awesome Prank or Circuit-Breaker Tester?

Awesome Prank or Circuit-Breaker Tester?

Many tools can be used either for good or for evil — it just depends on the person flipping the switch. (And their current level of mischievousness.) We’re giving [Callan] the benefit of the doubt here and assuming that he built his remote-controlled Residual Current Device (RDC) tripper for the purpose of testing the safety of the wiring in his own home. On the other hand, he does mention using it to shut off all the power in his house during an “unrelated countdown at a party”. See? Good and evil. An RCD (or GFCI in the States) is a kind of circuit breaker that trips when the amount of current in the hot and neutral mains power lines aren’t equal and opposite, which would suggest that the juice was leaking out somewhere, hopefully not through someone. They only take a few milliamps of imbalance to blow so that nobody gets hurt. Making a device to test an RCD is easy; a r...

Full article: http://hackaday.com/2017/01/31/awesome-prank-or-circuit-b...

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hackaday.com 06 Feb '17, 9pm

Arc-fault circuit breakers are a boon for household electrical safety. The garden-variety home electrical fire is usually ...