Safety is extremely important when talking about any kind of electrical device. The electrical safety of every single device must be 100% secured before shipping to end users.
High voltage measurement in production. Measuring shortcuts by supplying short high-voltage pulses, typically from 3000 to 5000 VAC, and measuring insulation resistance.
A special-purpose high-voltage test instrument is used in measurement, and testing is done in an operator-safe test fixture. The test fixture and test instrument are interconnected with a safety circuit to ensure operator safety.