The answer is actually quite simple, but let me first explain why that locking device is there. Section 422.30 of the National Electric Code (NEC) requires a disconnecting means for all appliances.
Careful what you leave in your lockers, high school students and gym-goers. An invasion of 3-D–printed robots may be coming, capable of popping one of the world’s most ubiquitous brands of combination ...
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