This application note discusses a method for confirming that earth leakage, enclosure leakage and /or patient leakage measurements within the safety analyzer are correct. This method will determine whether the measurement circuitry in the safety analyzer is within tolerance as specified in the data sheet. It will also ensure that the device under test (DUT) will be safe and fully functional when it gets to the end user.
This note looks at the various line leakage tests and circuit models to determine possible patient/operator danger.
Part 2 builds on the basic principles of leakage current discussed in part 1 and details the IEC60601-1 measurement circuits for Earth, Touch/Chassis and Patient leakage current tests.
This application note covers the differences between Ground Bond, Ground Continuity And Earth Continuity tests, and how these tests can result in safer products.
Vital areas of electrical safety testing for medical products include leakage current, dielectric breakdown, insulation resistance and ground bond testing. To better understand the differences in these tests and others, this article examines the purpose and techniques for each test then offers a detailed discussion on ensuring the safety of medical electronics.