Timeline for okay to use fatter/longer extension cord than spec'd for power tools?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 24, 2019 at 18:02 | history | edited | Karæthon | CC BY-SA 4.0 |
added 1 character in body
|
| Jan 24, 2019 at 16:56 | comment | added | Karæthon | A few years ago I had to spec a 1000 foot range for a heavy duty construction robot and in my search for informationmation I found this formula in Pocket Ref by Thomas Glover. The book says it's information comes from NEC and when I checked NEC just now they say 5% so it may have changed but I still prefer 2%, as a safety margin I'd now say 2-5% is probably ok. And it wouldn't hurt to compare 50ft 14 ga just to be sure. Here's the chart engineeringtoolbox.com/awg-wire-gauge-circular-mils-d_819.html | |
| Jan 24, 2019 at 16:46 | comment | added | TimCO | thanks for formula. Shouldn't we also calculate voltage drop on 50' cord since that's allowed per spec (assume 14 gauge?) and see how that compares to 100'? Do you have a source to back up that 2% voltage drop statement? I've seen 3% and 5% mentioned but nobody other than NEC says how they came up with those numbers. | |
| Jan 24, 2019 at 15:55 | history | edited | Karæthon | CC BY-SA 4.0 |
added 897 characters in body
|
| Jan 24, 2019 at 5:48 | history | edited | Karæthon | CC BY-SA 4.0 |
added 79 characters in body
|
| Jan 24, 2019 at 2:10 | review | First posts | |||
| Jan 24, 2019 at 2:14 | |||||
| Jan 24, 2019 at 2:05 | history | answered | Karæthon | CC BY-SA 4.0 |