Maybe being in Thailand, where 230vac is supplied with TWO wires, makes me ask.... what is 4-wire 240vac service? Charles Harpole k4vud@hotmail.com _______________________________________________ Amp
Also called an "Edison Service" The neutral is the center tap of the 240 volt transformer. The 4th wire is a frame ground. Sou you have: Phase "A", measures 120 volt to Neutral Phase "B", measures 12
2 hots, 1 neutral and 1 ground. Not really the proper term though. It's more properly named 120/240 single phase. With 120/240, you need a neutral. And a ground of course. 73 Jim W7RY _______________
Altho the 4 wire has been SOP in industrial sites for ages it is a result of nanny state busybodies where it is now mandated in our homes with appliances that also require 120V. The old appliances th
NO! Those "busybodies" to which you refer were smart electrical engineers who understood God's laws of physics, understood them in the context of "the big picture" of how buildings are wired and powe
Charles, There's a tutorial on Power and Grounding for Audio and Video Systems on my website that explains most of what you want to know, and it covers variations in practice over most of the world.
ORIGINAL MESSAGE: REPLY: Be careful doing this. Any load placed across only one of the two primaries causes unbalance in the voltage and current in each primary. The heavier the load, the more the un
Our club station is having a new electrical service installed courtesy of the our host. All of the receptacles specified for power amplifiers are 3 wire, four pole grounding. (NEMA L14-20R) The licen
The "extra" ground wire is needed only when a 240V appliance includes 120V devices. A range is a classic example - the oven elements are 240V and the stove stop elements and lighting is 120V. For saf
AB2ZY: Replace the word "neutral" and substitute with "ground". Paul, W9AC _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/li
What the hell, I knew what I meant! ;^) Al AB2ZY AB2ZY: Replace the word "neutral" and substitute with "ground". Paul, W9AC _______________________________________________ Amps mailing list Amps@cont
This is bass akwards. A power that runs on 240V MUST draw power between the two sides of 240 volts. NO NEUTRAL CONNECTION IS NEEDED UNLESS that power amp also needs power at 120V (typically to run a
"...All of the receptacles specified for power NEMA L14-20R is 3 pole, 4wire. "...he said he could not endorse an 2 wire, three pole grounding (NEMA And L6-20R is 2 pole, 3wire. Both locking receptac
Of course you edited my post out of context to conform with your rant. To me "working fine" means the millions of appliances of which maybe .01% or less belong to hams of which most could care less h
My understanding is that he provided a neutral. If a user chooses not to use it and there is a negative outcome, the blame shift from him to the user. BTW, the prints call out empty 3/4" conduit stub
I already corrected myself - "neutral" should be "ground". Al AB2ZY This is bass akwards. A power that runs on 240V MUST draw power between the two sides of 240 volts. NO NEUTRAL CONNECTION IS NEEDED
To understand how a 240/220 volt household circuit works you should first know a little bit about how a regular 120/110 volt circuit works. If you are at all familiar with residential electrical wiri
ORIGINAL MESSAGE: REPLY: Jim's 'rant' is right on. Nothing out of context at all. 73, Bill W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
There are a couple of things I don't understand: :-) (1) When it became clear, probably close to 100 years ago, that 120V was too low a voltage to efficiently power room (or tubes with handles) heate
It is a matter of reading comprehension or confusion about what I was attempting to say. "Altho the 4 wire has been SOP in industrial sites for ages" The above has been in effect for generations and