What the IEC 1010-1 safety standard means to
you As electrical systems grow more and more complex, spikes, transients,
surges, and sudden overvoltage events become more common. These can trigger a sequence of
events that may lead to serious injury. Which is why test equipment must be designed to
protect people who work in this high-voltage high-current environment.
The IEC 1010 safety standard was established to define four overvoltage categories (CAT
I, CAT II, CAT III, and CAT IV) based on the magnitude of danger from transient impulses.
The new Fluke 110 Series DMMs feature enhanced protection to IEC 61010 overvoltage
category III for voltages up to 600V. This helps protect from transients in three-phase
distribution systems, including:
- Single-phase commercial lighting.
- Equipment in fixed installations, such as switch gear and polyphase motors.
- Bus and feeder in industrial plants.
- Lighting systems in larger buildings.
- Appliance outlets with short connections to the service entrance.