expired Posted by gaamn114 | Staff • Mar 19, 2025
Mar 19, 2025 8:51 AM
Item 1 of 5
Item 1 of 5
expired Posted by gaamn114 | Staff • Mar 19, 2025
Mar 19, 2025 8:51 AM
100' Southwire 12/3 SJTW Heavy Duty Extension Cord w/ Lighted End
+ Free Shipping$53
$86
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People have left my "repaired" cords alone. Even found one sitting in a parking lot after it fell off my truck.
The longer the cord, the lower the peak.
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Normally, 14 awg wire is capable of 15 amps and 12 awg is capable of 20 amps.
It looks like the reason is continuous use vs peak:
12 AWG copper wire is suitable for a 20-amp circuit, and it's a common practice in residential wiring. However, for continuous loads exceeding 3 hours, it's recommended to limit the load to 80% of the breaker rating (16 amps). - Google AI
The 100' rule (voltage drop): After 100' you need to de-rate the conductor's rating and should use the next size larger conductor to maintain the amperage rating of the circuit.
Residential 15amp circuits are 14awg and there can easily be over 100' of wire in those circuits so using a 12awg extension cord should safely maintain the 15amp rating of the circuit all the way to the end of the extension cord.
That's why I recommend only buying 12awg copper extension cords. Also, two 50' cords are better, more versital/useful than a single 100' cord.
Hope that helps.
Conductors of the same AWG are rated for the same amperage regardless if they're solid or stranded. The AWG rating is based on the cross sectional area of the electrical conductor (copper). That's why a stranded conductor is a little larger in diameter than solid conductor of the same AWG.
AWG stands for "American Wire Gauge" and is the only officially recognized sizing standard for electrical conductors in the U.S.A. Electrical wire must have "AWG" stamped or printed on the outer jacket. The word "gauge" means nothing regarding electrical conductor size.
Tip: If you're stripping stranded wire, use the next larger size hole/notch on the wire strippers. IE: stripping 14awg stranded wire use the #12 hole/notch on the strippers.
Also, is it "Made in America"?
Notice the packaging and cord say:
"We've got it
MADE IN AMERICA tm"
This is a trademark slogan... I'm willing to bet it's NOT made in America.
Deceptive how the "made in america" is bold also....
Also, the proper labeling is "Made in USA", so this is not that... so likely made in elsewhere (China?)
According to the Federal Trade Commission, "Made in USA" means that "all or virtually all" the product has been made in America. That is, all significant parts, processing and labor that go into the product must be of U.S. origin
I'm sure it's a fine 12/3 cord, just don't expect too much.
My $.02
You apparently haven't seen the reality of this as in a space heater or other higher load device melting the plug & wall outlet receptacle, even tho the space heater would be within the 15 or 20 amp outlet rating.
Now that's just one wall socket plug in. (Another "pass-through" as you would call it) Imagine the potential with 2, 3, or 4 cord's plug-in connections to string them together. There is no guaranteed 'pass through' without any potential high resistance point of issue.
Attached pic is one example.
Ended up plugging the vac to my truck but it kept bugging out.
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