I’ve been complaining for years about similar inabilities to do math with respect to diesel fuel. “Oh, but look at the high number I can calculate!” they all cry–as they pump their tanks with a fuel that’s 33% more expensive than gasoline.
This doesn’t make any sense, why not use an extension cord with the 220 already in the house? A 6 or 8 gauge cord for 75 feet should be perfectly fine.
I agree. Plus, from my experience using remote controlled outlets, when the 4A inbuilt fuse dies because of reasons, the relay stays intact. O the other hand, I have never seen a light dimmer with blown fuse, just blown triacs.
There’s a lot of FUD in the comments here about extension cords (which if you know what you’re doing, you have some 12AWG SO and call it a day, 10 if it’s really dang long) and in terms of current, if you screw up and overload a plug you have a handy-dandy circuit breaker there for you. If you want to say I can’t trust that, you have other issues. I wouldn’t want to try this in a house with K&T, which I didn’t know was still so prolifically installed until I moved to the Midwest.
I guess writer JIM must be a “NEWBIE” or is otherwise mis-informed, but IEVs is continuing the FICTION that Underwriter’s Laboratories (UL) ‘CERTIFIES’ anything. He isn’t alone since every IEV writer says the same thing and its getting to be an echo chamber – but the end result is that IEVs is passing out bad information.
15A is more like 1,500 times what’s required to kill you, depending on what part of your anatomy it finds to traverse.
If you can tell me the relation between MOC max or peak amps values and the switched power done by the MAINS BT137 Triac I will be more than happy to hear….
However, experience tells me that this very minimal standard is not good practice. Modelling for 240V will only cause problems with the first over voltage transient or spike.
Most people posting seem to have three stories, I only have two. Hard to believe I learn faster than you all; I must have just forgotten the other times.
The back-EMF voltage generated across the start winding causes a small current to flow in the start winding and potential relay coil, because they are in the same circuit. When the back-EMF has built up to a high enough value (referred to as pick-up voltage), the contacts between terminals 1 and 2 will be picked up (“opened”). This will take the start capacitor out of the circuit.
One aspect of ac motor protection is the surge-withstand capability of the motor itself. Paragraph 20.36.4 of the NEMA motor generator standard MG-1 defines a unit value of surge as:  u à VL-L (or 0.816 à VL-L) where VL-L is the line-to-line voltage of the ac power system.
inserts probes into amperge socket sets to VAC and measures 120v wall socket meter goes bang and lets blue smoke out
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