Am I hearing things?

He probably put the 25 amp breaker on your AC unit which is not unusual that's about the only thing 25 breakers are used for AC units or water heaters. 

blueranger OP
255 posts                                                                            08-03-2018 3:05pm

I called the electrician and he said it was a 25 amp breaker. He assured me I’m fine. Mike

Call him back and ask him to cite the section in the NEC code that said he can use a 25 amp breaker where a 5-20R (20 amp) duplex receptacle is installed on a branch circuit.


Have him look at NEC
110.3 (B)

210.21 (B) (3).
Where connected to a branch circuit supplying two or more receptacles or outlets, receptacle ratings shall conform to the values listed in Table 210.21 (B) (3), ......


Table 210.21(B)(3)
Circuit rating (Amperes) ............Receptacle rating (Amperes)
20 amp ............................................... 15 or 20 amp
30 amp .................................................. 30 amp

If you have had problems with nuisance tripping with a 20 amp breaker I would suggest the electrician check and see if the Electrical Panel manufacturer makes an HM (High Magnetic) circuit breaker. An HM breaker has a longer lag time for inrush current.

In an earlier post I asked you a few questions. The questions asked relates to the problems you are experiencing with the sound from your audio system, when connected to the new dedicated circuit.

.

I will get a polarity tester and I don't kniw tbe particulars. But I do know when I saw the wire it was orange 10 ga and there was no ground wire in it. So how could he ground it otherwise? I'm just going to get another electrician verify everything and quote this post. Thanks Mike 

There should be white/neutral , black/ hot, bare copper/ ground. The ground might not be connected to the receptacle if there are more receptacles  on the run he might have twisted them together and crammed them in the back of the box. He should have pigtailed to the receptacle. 

blueranger OP
257 posts 08-03-2018 5:32pm

I will get a polarity tester and I don’t kniw tbe particulars. But I do know when I saw the wire it was orange 10 ga and there was no ground wire in it. So how could he ground it otherwise? I’m just going to get another electrician verify everything and quote this post. Thanks Mike

Stop. Take a deep breath. Don’t jump to conclusions. Other than the breaker the electrician installed in the electrical panel, everything else of the installation may be fine.

#10-2 with ground NM-B cable (Romex is a Trade name of) has an outer orange sheath, jacket. It comes with a bare equipment grounding conductor. It doesn’t come without an equipment grounding conductor.

The electrician installed one wall cut-in box and installed one 20 amp duplex receptacle. Correct? Metal or plastic box? Do you know the make of the duplex outlet? Is it at least a spec grade outlet? The outlet could be the source of the sound you are hearing from your audio system.  What type of duplex cover did he install? A flexible non breakable nylon plate?

Go to the electrical panel. What breaker number on the panel schedule is the older dedicated circuit you already have? What is the breaker number of the new dedicated circuit? The number is also stamped on the panel front cover next to the breakers. The numbers will tell me if the electrician install the new dedicated circuit breaker on the same Line, Leg, as the old dedicated circuit breaker.

Pick up a circuit/polarity tester at Home Depot. $5.00
https://www.homedepot.com/p/Power-Gear-3-Wire-Receptacle-Tester-50542/206212329?cm_mmc=Shopping%7CG%...
Post back what it indicates. Hopefully it will indicate CORRECT

Jim