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Non-Cattle Specific Topics
Every Thing Else Board
Submersible Electric Water Trough Heater for Cattle and Horses
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<blockquote data-quote="simme" data-source="post: 1836969" data-attributes="member: 40418"><p>Be forewarned, I am an "electrical expert" only in my own mind. </p><p></p><p>A few reasons that instructions would say to not use an extension cord:</p><p></p><p>Some people would use a 14 AWG extension cord to connect power to a 3000 watt user. So adequately sized extension cord includes amp rating, but also length (for minimum voltage drop). Electrical loads are best installed hardwired with good conductivity (low resistance) on all wires. The connectors on the end of extension cords are a big issue since they are just a friction fit. Dirty, corroded, worn so they don't have good contact, ground connector broken off, insulation cracked from all the flexing over time. Ever unplugged a cord and the connector was warm? That is a sign of poor conductivity (higher resistance). Cord too short - just keep adding more cords until they reach? I think the note about no extension cords relates to legal liability, but still has some science basis.</p></blockquote><p></p>
[QUOTE="simme, post: 1836969, member: 40418"] Be forewarned, I am an "electrical expert" only in my own mind. A few reasons that instructions would say to not use an extension cord: Some people would use a 14 AWG extension cord to connect power to a 3000 watt user. So adequately sized extension cord includes amp rating, but also length (for minimum voltage drop). Electrical loads are best installed hardwired with good conductivity (low resistance) on all wires. The connectors on the end of extension cords are a big issue since they are just a friction fit. Dirty, corroded, worn so they don't have good contact, ground connector broken off, insulation cracked from all the flexing over time. Ever unplugged a cord and the connector was warm? That is a sign of poor conductivity (higher resistance). Cord too short - just keep adding more cords until they reach? I think the note about no extension cords relates to legal liability, but still has some science basis. [/QUOTE]
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Submersible Electric Water Trough Heater for Cattle and Horses
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