jea48
Responses from jea48
| On one leg or two legs? Hevac1,The two pole 60 amp breaker will trip just fine if there is an overload or short circuit on just the one pole of the breaker. It is designed to do so. I assume the reason Maril555 paid to have the sub panel installed was to keep his audio b... | |
| On one leg or two legs? BTW, what's your take on the high chassis voltage, higher with the correct polarity?02-01-09: Maril555Well the lower chassis to equipment ground voltage is the correct orientation polarity for the amps. Seems odd to me both amps would have the pri... | |
| On one leg or two legs? The measurements are good......The bad news is it does not help the hum problem. From the pictures you supplied of the sub panel what I could see the electrician you hired did a good job. The only code violation I could see was the (4) 30 amp brea... | |
| On one leg or two legs? Maril555, You misunderstood what I wanted you to do. All the test measurements are taken at the wall receptacle outlet only. No audio equipment is involved with the test. In simple terms the test will tell if there is a good electrical continuity ... | |
| On one leg or two legs? new measurements:L amp:Correct cheater plug 62.5 V.Reversed 51 V.R amp:Correct 62.5 V.Reversed 51 V.01-31-09: Maril555Wow, I could see where the reading might be high in one direction, but not high in both directions.I just checked my little ARC V... | |
| On one leg or two legs? Can I use a polarity checker, kind they sell in Home Depot, to accomplish the same, unless you meant to do this test for a purpose, other, than to check polarity of each receptacle?I cannot understand one thing, though- how come the hum is louder ... | |
| On one leg or two legs? Just did it again- no ICs connected, plugs in the inputs- same hum.01-31-09: Maril555Maril555, By chance do you have a multimeter? If so why not try a plug polarity orientation test for each power amp.To do the test you will need to trim the polar... | |
| On one leg or two legs? Even when just a power amps connected to the speakers, and nothing else connected to the amps, and with grounds lifted on both amps with a cheater plugs, still I hear faint hum (much louder with no cheater plugs).I have tried everything:Unplugged ... | |
| On one leg or two legs? Hevac1,It couldn't hurt if Maril555 moved the projector branch circuit over on the other leg, L2, of the sub panel. Might even help in balancing out his main electrical panel.Will that solve his hum problem? No, jmho.As for the total load that is ... | |
| On one leg or two legs? I will have to look at that screw when I get home, but what are you thinking about?01-30-09: Maril555Looking again closely to the picture it looks like the screw is used to connect the left side neutral bar to the cross tie bus to the right side n... | |
| Grounding A Preamp Licoricepizza, Question: If you select, say, CD for the listening input on the preamp, is the buzz present? If not and it is only present when the preamp listen selector switch is set to phono..... there may very well be a problem with the preamp. | |
| Grounding A Preamp 01-30-09: LicoricepizzaThe preamp also has a 2 pronged plug. The buzz is coming from the speakers, and is volume dependentWell if I understand you correctly at on point in your trouble shooting you isolated, disconnected, everything from the input... | |
| On one leg or two legs? I also see one orange 12 awg. cable entering the sub panel- the black (hot ?) wire is not connected to the breaker, terminated with the cap, the white and bare ground are connected to corresponding bars. What's that about, I don't know. 01-30-09: ... | |
| On one leg or two legs? Maril555,Are the 4 single pole breaker that feed the #10 wire branch circuits 30 amp?If so that is a no no... Should be a max of 20 amp.If the receptacles are 20 amp then the breakers must be 20 amp.That would not cause your problem though.... | |
| On one leg or two legs? Maril555,Looks ok to me..... I see the feeder equipment grounding conductor is part of the feeder cable. I assume it connects to the ground bar in the main electrical panel. Sub panel looks fine. Branch circuits are fed from L1, leg, of the panel.... |