Forum Discussion
professor95
Dec 22, 2008Explorer
Old & Slow wrote:
Prof,
On the subject of adding GFCI to our gennys. Several questions.
1. Assuming a 30a is available to replace the 20a recpt. in the C46540 can it just be jumpered to the 30a RV recpt? Only connect the white and black wires? And must I know if my MH has a floating neutral?
2. If I were to accidentally touch a black and white wire down stream from a GFCI, would the result be less dangerious than depending on a breaker. I assume the result from a GFCI @ 5ma would only be a slight zap. Maybe you could offer some differing results in safety. And any further thoughts about the vibration issue?
Floyd
Unless you are an electrician and fully understand what you are doing behind the panel on the genny, I would strongly urge you to leave it "as is" and purchase the portable GFCI. You will not need to wire anything and will also have the added benefit of transient and surge supression both when connected to a generator and park power. Thus, you get two for one on that deal (protection on park power and on genny power).
Back when I was doing my Cardiac training as an EMT, there were several lectures devoted to electrocution. Under the absolutely worst situations where the electrical current passes directly across the heart and bisects what is known as the SA node an electrical shock with 4-6 MA current (120 VAC or higher) is capable of causing the heart to go into V-Fib.
Understand that a number of conditions must be exactly right for this wrong thing to happen. Truthfully, the likelyhood of 4-6 MA of current killing you are minimal. Thus, your chances are much, much better using a GFCI than hoping a circuit breaker will trip before you are dead.
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