Be Aware of the China Export mark! CE marking or Chine Export (CE)?

Let's see whic are the protections techniques and the FAQ.

An e.m. wave is compound by permanently varying electrical and magnetic fields, having a 90° degree phase difference, it propagates in vacuum at light speed.

Delicate circuit elements can be damaged from voltage/current pulses generated by several possible sources.

CE Marking (which includes EMC - Electromagnetic Compatibility) has been introduced in order to unify the products security features used in CEE countries. In this article you'll find some EU directive.