Despite doing my best to keep right up to speed on as many safety requirements as I can, I discovered an issue that I hadn't been aware of; RCD testing.
The issue only came about today because I was having an electrical safety check done for my own flat. I work from home and I was getting nervous about some electrical anomolies.
The sparky found that the RCD protecting power circuits was not working. He pointed out that it's not commonly known that pressing the test button on an RCD is something that should be done at least monthly. He also pointed out that doing that will, if the RCDs mechanical bits work properly, trigger the power switch to turn off; that's probably the reason RCD testing (via the RCD rather than via specialised testing equipment) isn't done or mentioned a lot. Power goes off, around you go reseting all the clocks and whatever that are in our applicances or equipment.
But the fact of the matter is of course, that in the absence of that test it's possible you have an RCD installed and it's doin' nothing.
There are Oz standards that mention in places that regular testing is recommended. These are the 2 I found that cover the issue: AS 3760 2003 - In-service safety inspection and testing of electrical equipment. AS 31902002 - Approval and test specifications - Residual Current Devices.
I thought to mention this experience so that all of us in OHS-World could consider making sure any safety programs we put together specifically mention regular testing of RCDs. Failure of an RCD is not uncommon and obviously, an RCD that don't work is pointless.