Critical safety warningDo not recreate this experiment.Water may be energized even when a GFCI has not tripped.
What a GFCI detects
- It compares current leaving on the hot conductor with current returning on the neutral.
- A qualifying imbalance causes it to disconnect power.
- It does not detect water itself. An appliance can remain energized while submerged.
What the demonstration shows
- The hair dryer continued running in a plastic bucket because there was no qualifying current imbalance.
- Adding a path to ground created an imbalance, and the GFCI tripped.
- A person could become an unintended current path. No trip does not mean the water is safe.
If an appliance falls into water
- Do not touch the appliance or water, even if protection appears to have tripped.
- Keep everyone away. Treat the area as energized until power is safely isolated.
- Get qualified help. Call emergency services if someone is in danger; do not enter energized water.
- Remove the immersed appliance from service; do not assume drying makes it safe.
Bottom line: GFCI protection reduces shock risk. It never makes electricity around water safe to touch.
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