The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Trumpy 8
Texas_Ranger 8
sparkyinak 7
Who's Online
0 registered (), 255 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#126706 - 08/21/06 02:42 PM Current Load Test of New Receptacle
Christopher.Banbury Offline
Junior Member

Registered: 08/07/06
Posts: 6
Loc: Brooksville, FL, USA
I recently had a new L5-30R receptacle installed. How can I perform a current load test on the receptacle before plugging in my sensitive equipment.
The receptacle was installed by a licensed electrical contractor but my first unit burned out when I plugged it in and also threw the breaker. Also, the receptacle shorted out when the metal tab (f-clip) that holds the box in the drywall cut through the electrical tape and touched the hot terminal on the receptacle.
I have a replacement unit now and I have no real reason to doubt the contractors work but I am worried about this happening again. Also is it ok to use a single gang box with a L5-30P or should the receptacle be center mounted in a double gang box? I am concerned that under high current that the metal f-clip is somehow drawn to the hot terminal.
Thanks in advance for any help.
_________________________
Christopher Banbury, PE
President
Ark Engineering, Inc.
PO Box 10129, Brooksville, FL 34603
22 N. Broad ST, Brooksville, FL 34601
Phone: (352) 754-2424
FAX: (352) 754-2412
http://www.arkengineering.net

Top
#126707 - 08/21/06 02:46 PM Re: Current Load Test of New Receptacle
HotLine1 Offline
Member

Registered: 04/03/02
Posts: 6804
Loc: Brick, NJ USA
Based on your post, I believe your inquiry should be addressed by the professional that did the installation.

What you refer to as an "F-clip" may be a madison bar, to support an old work box in a existing hollow wall; that should not come in contact with any live terminals/terminations.

John
_________________________
John

Top
#126708 - 08/21/06 02:56 PM Re: Current Load Test of New Receptacle
Christopher.Banbury Offline
Junior Member

Registered: 08/07/06
Posts: 6
Loc: Brooksville, FL, USA
Thanks,
The contractor believes that the receptacle is installed properly and to code.

When the receptacle was opened, one of the tabs on the madison bar was completely burned off. The contractor replaced the tab, spent some time in the crawl space and electrical room checking the installation and re-taped the receptacle. It is basically the same installation unless they discovered something else that they didn't mention.
I am concerned that the same thing could happen again.
_________________________
Christopher Banbury, PE
President
Ark Engineering, Inc.
PO Box 10129, Brooksville, FL 34603
22 N. Broad ST, Brooksville, FL 34601
Phone: (352) 754-2424
FAX: (352) 754-2412
http://www.arkengineering.net

Top
#126709 - 08/21/06 03:44 PM Re: Current Load Test of New Receptacle
ShockMe77 Offline
Member

Registered: 06/11/05
Posts: 823
Loc: Rahway, New Jersey
How do you plan on testing for current without having the device plugged in?

Top
#126710 - 08/21/06 03:53 PM Re: Current Load Test of New Receptacle
electure Offline
Member

Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
Sorry, this doesn't sound like something that we should be giving you answers on.
Best bet, follow John's advice and have someone qualified look at it for you.
We'll close this one now

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals