IEC 61010 specifies general safety requirements for electrical test and measurement equipment, industrial process-control equipment and laboratory equipment. EN 61010-1:2010/A1:2019 modifies the European standard EN 61010-1:2010. The main text can be found in the standard’s history.
In this amendment you can find numerous significant changes:
— symbols are the preferred marking method over warnings,
— clearances and creepage distances in mains circuits of overvoltage category III and IV are subjected to dielectric testing in case of doubt,
— the 500 VA power requirement of the a.c. dielectric strength test equipment is replaced by a requirement to maintain the test voltage throughout the test,
— the requirements for protection against optical radiation are revised.