Burnt Receptacle...

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don resqcapt19 said:
I understand there will be one to require a receptacle that has a thermal shut down system for for the 2011 code.
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Great, another trouble-prone proposal for a device that will be pushed onto the market before it's worth (or actual, statistically proven-need) is established. :roll:
 
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mxslick said:
Great, another trouble-prone proposal for a device that will be pushed onto the market before it's worth (or actual, statistically proven-need) is established. :roll:
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This isn't from NEMA or a major manufacturer, so I don't see the proposal getting accepted....but then if one of the majors takes an interest...it might have a chance.
 
acrwc10 said:
In most cases about 7K to 10K, depending on how close to the transformer you are.:D could be more.
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Not, not the AIC rating of the system. Take a standard 20a circuit. I want a tester to plug into a receptacle on that circuit to tell me how many more amps I can draw and not trip the breaker. If there's 8 amps being used, I want to see "12" on the display.
 
LarryFine said:
Perhaps poor stripping habits by the original installer. I've seen plenty of guys ring wire when stripping it. They squeeze the cutters and rotate the handles. Now there's a nick in the wire, and that's where it breaks.

Sooner or later, especially with handling, the wire breaks right where it was stripped.

I tell them that the insulation just rotates with the pliers, and they're doing to the conductor what they want to do to the insulation. I teach to squeeze, release, rotate, squeeze again, then pull. I can just squeeze and pull.
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O so true. I see plenty of guys use their linemans or dykes. And my favorite are the guys that use razor knifes.
 
LarryFine said:
Perhaps poor stripping habits by the original installer. I've seen plenty of guys ring wire when stripping it. They squeeze the cutters and rotate the handles. Now there's a nick in the wire, and that's where it breaks.

Sooner or later, especially with handling, the wire breaks right where it was stripped.

I tell them that the insulation just rotates with the pliers, and they're doing to the conductor what they want to do to the insulation. I teach to squeeze, release, rotate, squeeze again, then pull. I can just squeeze and pull.
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And this is the result:

Card001.jpg
 
480sparky said:
And this is the result:

Card001.jpg
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Yes, this is ultimately the reason why the conductors broke off of the devices. I basically knew that but was just kind of shocked (no pun intended) that it could happen to I think 3 that I found in about 10 devices that I pulled out. Pretty bad record. :)

Nice textured wall in the background by the way. :)
 
Aluminum wire

Aluminum wire

I find that 9 times out of 10 the problem recep is one that is still functioning and 9 times out of 10 that same recep will be behind something like a dresser or appliance.
A coworker was on a trouble call yesterday where a recep circuit was out, he found the problem in the recep behind the fridge and it was still working.

This is aluminum wire.
 
480sparky said:
Not, not the AIC rating of the system. Take a standard 20a circuit. I want a tester to plug into a receptacle on that circuit to tell me how many more amps I can draw and not trip the breaker. If there's 8 amps being used, I want to see "12" on the display.
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This would be tough to do, since breakers factor in time by design. For instance, most breakers will hold a load of about 25 percent higher than their rating for 2 hours before they trip.

I just clamp the circuit and read the load at the time. The math is not all that hard to do in ones head.

The requirement that the tester be plugged into the receptacle also poses some problems since a receptacle may be anywhere in the circuit.
 
K8MHZ said:
This would be tough to do, since breakers factor in time by design. For instance, most breakers will hold a load of about 25 percent higher than their rating for 2 hours before they trip.....
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I know. But about once a month I get a request for just such a device from people who just don't understand how amperage is measured. They think we have some special plug-in device that shows how many amps are still available on the circuit. I don't even try to tell them about inverse-time characteristics. The honestly believe a 20a breaker should shut off at exactly 20.00000001 amps.
 
480sparky said:
I want a tester to plug into a receptacle on that circuit to tell me how many more amps I can draw and not trip the breaker. If there's 8 amps being used, I want to see "12" on the display.
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Who remembers the episode of Green Acres when they got electricity in the house? Well, not in the house, exactly. They had to climb up the same pole they had to climb to use the phone.

Each appliance had a plug and a numbered tag, and they couldn't plug in anything that would take the total of the numbers higher than '9', if I remember correctly.
 
Glowing Connections and Burnt Outlets

Glowing Connections and Burnt Outlets

I have been on a crusade to save lives and property for the last 14 years. I was an electrical contractor in NYC and saw many electrical fires in receptacles. I had discovered that there was an overheating problem in the connection points of the outlets where the wires connect and at the insertion point of the male plug. Have you ever had a male plug that was loose in an outlet? That can be the beginning of a phenomenon called a Glowing Connection. ( you should Google Glowing connection ) for lots of information.
Outlets wear out over time. They cause fires, lots of fires. I invented a simple solution to the problem, temperature sensing outlets. It has taken 14 years to produce a product that can prevent this problem. It has been a David and Goliath situation.
--Outlets can become a defective product, they can kill people over time. This is a National and International problem. I have been involved with the Consumer Products Commission (CPSC) Underwriters Laboratory (UL); NYS fire commissioner, Insurance companies and numerous others. I am looking to spread the word about these safety hazards.
When I gave up my business to peruse my dream of preventing these fires , I thought the world would embrace my idea of outlets and wiring devices with temperature sensing so that when there is an over temperature condition they will shut them self down. This principal has been used in small motors, fluorescent lighting, street lighting, recessed lighting, etc. This is to prevent over heating and shut down before a fire could start.
The world does not know that outlets cause fires and that the problem is usually NOT overloading or short circuits. I hope you can help me get the word out to save lives and property. Temperature sensing outlets will finally be in the market place this month. I feel that I have won the David and Goliath battle and want to share this with the world.
I have TONS of information on this subject and 1000's of articles about this exact problem. I have put in submissions to the NEC (National Electrical Code) to require these outlets. Hopefully with our help we can get the code changed and the word out. The glowing connection can be created wth as little as 1 amp. AFCI’s are not designed to detect glowing connections as per UL 1699.
Arc-Fault Circuit-Interrupters
Scope of UL 1699
1.3 These devices are not intended to detect glowing connections
GFI’s Will not detect glowing connections.
>>web link removed< <
Bob K
 
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thermalsensing said:
I have been on a crusade to save lives and property for the last 14 years. I was an electrical contractor in NYC and saw many electrical fires in receptacles. I had discovered that there was an overheating problem in the connection points of the outlets where the wires connect and at the insertion point of the male plug. Have you ever had a male plug that was loose in an outlet? That can be the beginning of a phenomenon called a Glowing Connection. ( you should Google Glowing connection ) for lots of information.
Outlets wear out over time. They cause fires, lots of fires. I invented a simple solution to the problem, temperature sensing outlets. It has taken 14 years to produce a product that can prevent this problem. It has been a David and Goliath situation.
--Outlets can become a defective product, they can kill people over time. This is a National and International problem. I have been involved with the Consumer Products Commission (CPSC) Underwriters Laboratory (UL); NYS fire commissioner, Insurance companies and numerous others. I am looking to spread the word about these safety hazards.
When I gave up my business to peruse my dream of preventing these fires , I thought the world would embrace my idea of outlets and wiring devices with temperature sensing so that when there is an over temperature condition they will shut them self down. This principal has been used in small motors, fluorescent lighting, street lighting, recessed lighting, etc. This is to prevent over heating and shut down before a fire could start.
The world does not know that outlets cause fires and that the problem is usually NOT overloading or short circuits. I hope you can help me get the word out to save lives and property. Temperature sensing outlets will finally be in the market place this month. I feel that I have won the David and Goliath battle and want to share this with the world.
I have TONS of information on this subject and 1000's of articles about this exact problem. I have put in submissions to the NEC (National Electrical Code) to require these outlets. Hopefully with our help we can get the code changed and the word out. The glowing connection can be created wth as little as 1 amp. AFCI?s are not designed to detect glowing connections as per UL 1699.
Arc-Fault Circuit-Interrupters
Scope of UL 1699
1.3 These devices are not intended to detect glowing connections
GFI?s Will not detect glowing connections.
>>web link removed< <
Bob K
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Do these also shut off receptacles that are wired downstream of the "hot" receptacle? If not, I don't think that would have prevented this meltdown.

Steve
 
I feel dirty if I replace a recept and re-wrap the wires around the screws. I always pigtail, wrap around the screws and reinstall. No tape though. I am not comfortable with the recept in series in the circuit.
 
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