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POP sound in panel what is it? #184843
02/23/09 07:39 PM
02/23/09 07:39 PM
E
edman78  Offline OP
New Member
Joined: Nov 2005
Posts: 6
pa
Im rewiring a 100 year old home that has 100 amp pushmatic panel in it. Im temporarily tighing in a 20 amp circuit in for a bedroom.

Im pretty sure i have the answer to this question but want to make sure. I tighed in the new 20amp circuit but the breaker was off i then turned the main breaker back on and heard a pop sound so i quick shut the main off again.

I forgot to turn off alot of the branch circuits before i turned the main back on so was that the pop i heard because of the load? There was nothing on in the house just the fridge and the lights in the basement.

I first thought there was a short in the circuit i just ran because i had to use wiremold thinking i chafed a wire. I only hooked the circuit up to the breaker and the neutral to the ground bar i never turned the circuit breaker on so i dont see how that is the problem.

So was this pop sound because of the fridge and light loads? Nothing was burning or smelled burnt in the panel.

So at the end i turned off all the branch circuits and then turned the main on then each branch circuit without any pop noise.

Work Gear for Electricians and the Trades
Re: POP sound in panel what is it? [Re: edman78] #184852
02/23/09 11:44 PM
02/23/09 11:44 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,985
Brick, NJ USA
I'd venture a guess that you heard the breaker mechanism closing.

The pushamatics make 'odd' noises occasionally. Some guys call them 'pop-o-matics'



John
Re: POP sound in panel what is it? [Re: HotLine1] #184868
02/24/09 05:34 PM
02/24/09 05:34 PM
A
Ann Brush  Offline
Member
Joined: Dec 2005
Posts: 152
Ohia
Does tighed = tied and tighing = tying, not trying to be smart just want to make sure I understand your post. I assume you're getting it inspected right?

Re: POP sound in panel what is it? [Re: Ann Brush] #184869
02/24/09 05:42 PM
02/24/09 05:42 PM
dougwells  Offline

Member
Joined: May 2003
Posts: 1,145
kamloops BC Canada
I think he meant tying in

Re: POP sound in panel what is it? [Re: Ann Brush] #184874
02/24/09 07:03 PM
02/24/09 07:03 PM
L
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
Where is Ohia? wink

Re: POP sound in panel what is it? [Re: leland] #184875
02/24/09 07:57 PM
02/24/09 07:57 PM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,271
Fullerton, CA USA
Don't they require AFCI's in Pennsylvania in bedroom circuits?

I don't think they make a Pushmatic AFCI.



Re: POP sound in panel what is it? [Re: leland] #184876
02/24/09 08:00 PM
02/24/09 08:00 PM
E
edman78  Offline OP
New Member
Joined: Nov 2005
Posts: 6
pa
Sorry yes i meant tying haha. I remember winning awards for spelling back when i was in school now i cant spell for **** ha.

Anyway still don't know what that pop sound was but everything works nothing is burnt. But when i finally turned the 20 amp breaker on for the circuit i ran it tripped right away. Turned out i smashed a wire putting on the internal 90 cover on the wiremold! I hate wiremold!

Anyway case closed everything is fine and dandy now haha.

Re: POP sound in panel what is it? [Re: edman78] #184878
02/24/09 08:42 PM
02/24/09 08:42 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,985
Brick, NJ USA
That's over!

Leland:
Think she means Ohio?


John
Re: POP sound in panel what is it? [Re: HotLine1] #184882
02/24/09 10:33 PM
02/24/09 10:33 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,242
Estero,Fl,usa
"Pop" always meant that an arc either welded or blew open, to me. I am not sure where it happened in that can but that's what happened. Maybe that is just the way Pushmatics close the circuit. Never saw one.


Greg Fretwell
Re: POP sound in panel what is it? [Re: gfretwell] #184883
02/24/09 11:06 PM
02/24/09 11:06 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,985
Brick, NJ USA
Greg:
They were made orig by 'Bulldog', then later I believe ITE bought the brand/design. I used to have a bunch of then in the shop, single, double and three pole.

IMHO, they were a pain in the butt. Bolt-in, tight panel space, and I wonder if they ever had a SWD rating.

It was 'push-on; push-off' with an indicator in the 'push' part.



John
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