> A really big workstation machine or an A3 colour laser printer might exceed the 3A limit but that's rare
We have discovered through experimentation that all of our laser printers draw more than 3A on start up. Also, the cleaners have established that vacuum cleaners draw more than 3A.
Although it usually then takes several months for someone else to report their "laptop won't charge from any socket on that strip (that one on the end worked until last week, but now now none of them do)"