I wonder if anyone can help with the following query.
I was testing a cordless plastic body electric kettle for earth continuity and measured 0.5 Ohms between the kettle element and and earth pin on the plug. I was a bit suspisous (as I expected a lower reading, i.e. a pass reading) as the kettle seemed fairly new. The resistance between the base unit earth connector and earth pin on the plug was 0.03 Ohms.
I made the same measurement on a brand new plastic body cordless kettle which I had and obtained 0.5 Ohms between plug earth pin and kettle element? I checked the test meter on a checkbox and there were no problems with accuracy for earth continuity measurements. The meter was calibrated in November 2011 and was purchased in 2011.
The test equipment is a battery powered hand held meter and uses 200mA for the earth continuity test. Test on lots of other class 1 appliances (i.e. portable, movable and stationary etc) are fine. The resistance of the meter test lead is 0.02 Ohms.
I am aware the scaling could affect the reading but the brand new kettle
but wondering why I am getting 0.5 Ohms on a brand new plastic body cordless kettle?
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