A Must for Your Truck Camper –
An understanding what is a GFCI or GFI
and why they are needed
Truck campers should be equipped with one Ground Fault Circuit Interrupter(aka GFI). GFI’s are 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. Their fast action works by comparing the amount of current going to > and returning < from appliance(s) or equipment. When the amount of electrical current going differs from the amount returning by approximately 5 mA (milliamperes), the GFI interrupts (stops) the current. The tripping of the electrical current is quick enough to prevent electrical shock or worse.
According to the National Electric Code (NEC 70), all wet and damp locations which include the kitchen, bathroom and outside electrical plugs require a GFI to reduce possibility of electrical shock.
Test, test and test again regularly
The GFI outlet should be test periodically to ensure that it will work when needed.
Activate the test function by plugging an appliance into the outlet, such as a lamp or hair dryer, turning the unit on and pressing the button on the GFI outlet with the word “TEST”. The appliance should turn off and the “RESET” button should pop out. This action verifies that the electrical circuit has indeed been interrupted. Press the “RESET” button and your appliance should turn on again.
Should the test fail, REMOVE and REPLACE the GFI outlet.