Sherwood Schwartz, the television genius who created The Brady Bunch and Gilligan's Island -- and wrote the theme songs for BOTH shows -- has died ... TMZ has learned. Schwartz is a TV legend -- back in 1961, he won an Emmy for his work as a writer on The Red Skelton Show..
The electrical current may then take an alternative path to the ground through the user, resulting in serious injuries or death. The ground-fault circuit interrupter, or GFCI, is a fast-acting circuit breaker designed to shut off electric power in the event of a ground-fault within as little as 1/40 of a second. It works by comparing the amount of current going to and returning from equipment along the circuit conductors.
Some testers not meeting UL 1436-1993 have timing circuits that limit the test current to a duration of 200 ms. If the GFCI takes more than 200 ms to trip (as permitted by UL), these testers may never trip some GFCIs that are in full compliance with UL requirements.