How to Daisy Chain an Extension Cord

Extension cord connected to outdoor outlet

Daisy-chaining extension cords is a process for connecting two extension cords together when one extension cord isn't long enough. Daisy-chaining extension cords is fine when the cords are of a large-enough gauge to support the extra run, but can be limit the amount of power to the tool (and even be a fire hazard) when the gauge of extension cord is too small.

Things You'll Need

• Two 12-gauge (or larger) extension cords

Instructions

1. String out the two extension cords to be daisy-chained, so that there are no kinks in the cords.

2. Insert the male end of one cord into the female end of the second cord.

3. Align the two cords about a foot beneath the connection. Make a large loop with the two cords, then push the connection through the loop and tighten to make a loose knot.

4. Plug the male end of one extension cord into the power outlet.

5. Connect the tool to be used into the open female end of the daisy-chained extension cord.

Tips & Warnings

• Tying a knot in the cords at the point of the daisy-chained connection will help keep the cords from pulling apart.

• When extending extension cords, always use larger gauge cords than the tool would normally require. The larger diameter wire will help ensure that the extra cord length will not cause a voltage drop below the level required by the tool.

References

• OSHA Fast Facts: Daisy-chaining power cords
• Extnsion Cord Sizes
• Extending power strips