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What in Tarnation?
What in Tarnation?
by timmp, September 10
Plumber meets Electrician
Plumber meets Electrician
by timmp, September 10
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Joined: Nov 2004
Posts: 51
B
Member
Larry's solution is great! But can you convince the people to spend (guessing $200.00) for this insted of $9.99 for the power strip?
Larry just out of curiosity is this a seperate circuit to the panel or a tap off of an existing circuit?

Insulated Tools for Electricians

Insulated Tools for Electricians, Installers & Maintenance Technicians

Joined: Jan 2003
Posts: 4,391
I
Moderator
Another good post Reno, I have thought of many of the same issues.

I have some Wiremold brand portable power taps and they are wired with 12 AWG and 20 amp Hubbell receptacles.

They also have brackets to mount to a wall.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Joined: Feb 2005
Posts: 693
L
Member
"Larry just out of curiosity is this a seperate circuit to the panel or a tap off of an existing circuit?"

Actually, this is fed from a 4-space/8-circuit G.E. sub-panel just above in the wall, fed via a 6/3 NM on a 50a. 2-pole breaker in my main panel. I used the G.E. because the breakers aren't centered in the enclosure:

[Linked Image from fineelectricco.com]

Note the yellow RCA cord; this is a 12v. trigger from my surround pre/pro. There is a 25a, 4-pole contactor inside the panel which switches 4 of the 8 circuits. I had to cascade several relays because the pre/pro trigger is only capable of 15ma.

The 12v. output operates a reed relay with 1a. contacts, which in turn controls a 120v-coil, 10a-contact relay, which in turn operates the contactor. The reed relay contacts can't handle contactor's current directly.

(Yes, I know it's illegal to have misc equipment in a panel. Hey, after all, I'm a professional, so I know how to break the rules properly!)


Larry Fine
Fine Electric Co.
fineelectricco.com
Joined: Dec 2004
Posts: 329
I
Member
"Hey, after all, I'm a professional, so I know how to break the rules properly!)"

Famous last words? [Linked Image]

Joined: Jan 2005
Posts: 135
M
Member
"Hey, after all, I'm a professional, so I know how to break the rules properly!)"

Like the shoemaker with holes in his shoes or the carpenter with a hole in his roof.

I have a buddy who is an electrician, at who's house you can see some of the most horrific uses of extension cords, temp lighting and countless other electrical odds and ends used in a way that a professional (that he is) should always be on hand.
I laugh (probably should cry) to myself everytime I set foot in this guy's house.

Joined: Jan 2005
Posts: 5,485
Likes: 4
Cat Servant
Member
Checkmate, Larry. Guess the code, by proscribing anything actually useful, really wants us to return to horse & buggy days!

We can't let anything like progress interfere with inspection convenience, can we?

Joined: Nov 2001
Posts: 745
M
Member
Larry: What is the purpose of having a remote controlled contactor for the four circuits? Some type of power on/power off sequencing for amplifiers and pre-amps, possibly (to minimize audio "thumps")?

Mike (mamills)

Insulated Tools for Electricians

Insulated Tools for Electricians, Installers & Maintenance Technicians

Joined: Jul 2004
Posts: 145
C
Member
Larry, by posting this you raise a question. What is the code-compliant way of doing this? My imagination is tending towards the following:
Panel->Breaker->Contactor(Separate Enclosure)->Second Subpanel->Final Breakers

Although Non Code Compliant, I (at the risk of being yelled at) agree that sometimes In circumstances like this, professionals know when it is safe to break the rules.

I would agree this would be a bad idea if it were the *Main* panel, but being a subpanel it can be isolated for service by turning off the feed breaker in the main.

And with reference to your 'Stack O Outlets', EXCELLENT work, neat, and shows that such a thing can be neat and workmanlike.

Joined: Nov 2002
Posts: 793
Likes: 3
W
Member
Thre should exist industrial control relays and such that would be code compliant, maybe not in the panel, but maybe downstream. Or those remote control light switch relays that fit in knockouts of boxes with the low voltage wiring outside the box.

Joined: Feb 2005
Posts: 693
L
Member
Thanx for the kudos, guys.

Mike, the contactor is not on delay. It's simply for automatically controlling my amplifiers and ancillary electronics.


Larry Fine
Fine Electric Co.
fineelectricco.com
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