[USCG SimTech]

Get an old microwave and put susceptible items in it. Get several if necessary. The older ones are larger though..................

The microwave will work as a Faraday cage ONLY IF:

1. It is plugged in and is 3-wire back to the box with a certified green wire ground that is good.

2. The circuit breaker for that microwave is thrown OPEN so no outside line from the pole reaches the microwave.

The ground wire is ALWAYS connected to the box ground, which is connected to the two (hopefully up to code, 2) grounding rods outside regardless of the breaker position.

[Red Badger]

.......or you could just ground the chassis to a ground rod yourself without the house wiring even being necessary..................

[RFEngineer]

“The microwave will work as a Faraday cage ONLY IF: “

The microwave will never work.