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#11
September 3rd 03, 04:27 AM
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nobody wrote: In wrote: But in 1978 I wired the 2 bulbs in the each of the EXIT lights in the church in series. Congratulations, you probably bypassed a safety feature. If they're in parallel, if one burns out the other keeps going. In series, if one goes they're both out, and the exit sign is no longer visible. Thanks for the congratulations! Regarding safety: there are 6 exit lights, which had to be re-lamped 3 - 4 times per year. So the new wiring saved 25 (years) x 6 (lights) x 3.5 (relampings per year) or 525 trips up and down the ladder. It also kept hands and fingers out of electrically hot fixtures 525 times. Those fixtures are required to be on 24x7 - the only way to turn them off is at the breaker. So it saved 525 flips of the breaker - or more likely, it saved 525 instances of fingers inside a fixture that was electrically hot, human nature being what it is. The need for re-painting has also been reduced (more ladder climbing), but I cannot quantify that. With the old wiring, the wall and ceiling above the exit signs used to get dirty a lot sooner than it does now. Now with the above facts in mind, which do you think is safer? |
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