Originally Posted By: jtedesco
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I found this listing information in my UL Directory "White Book" on page 124-125. We should refer to it as a "Relocatable Power Tap". Please read this first.
The receptacle in the wall with the two "duplex" outlets, is probably only rated for 15 amps, and is not designed to carry more than 12 amps (80%) on a 15 amp branch circuit, so when the equipment that is plugged into the "power tap" is rated beyond that figure the wall receptacle starts to heat up, and may begin to deteriorate and weaken the contacts.
That's one of the reasons I always suggest that new receptacles (specification grade) be used as replacements to give more strength to that first connection.
The best advice would be to run some individual 20 ampere branch circuits.
The two receptacle outlets in a duplex are not enough for everything we need to play with our toys!
PS: I am on the Amtrak now at Newark station so I have a receptacle next
to me so I can play and get some work done before I get into Baltimore!
Joe Tedesco, NEC Consultant