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Practical Engineering

Practical Engineering: Material Group Selection and How it Affects Spacings

Often overlooked during the development of appropriate spacings (creepage distances) for safety-certified products is the failure to account accurately for the material group of the components involved. This oversight can have significant implications. Let us briefly explore this issue to raise awareness among readers.

Practical Engineering: Capacitor Safety Considerations

You know that feeling when a capacitor’s datasheet claims one thing, but NRTL’s online certification directory tells a different story? This blog is all about that - specifically a capacitor rated X1 and Y1, but the certification directory only showed X1. Moral of the story? Double check those certs early in the game to avoid delays.

Practical Engineering: Creepage Distance of an Optocoupler

This month's blog is pulled from the product safety playbook. It highlights a potential issue to avoid when considering an optocoupler's creepage distance when placed onto a printed circuit board (PCB).

Practical Engineering: Standards for Electricity Meters and Other Similar Devices

Electricity meters and other similar devices have their own set of unique standards and requirements.

Practical Engineering: Pre-compliance for Product Safety

If pre-compliance activities are good for discovering EMC design weaknesses early in product development, why not apply the same thought process to product safety?
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