Manfred W. said:
Hi!
I kindly ask you for an anwer to the following question:
What are the limits that I have to stick to, concerning EMI/EMC (especially
conducted and radiated *emission*), when talking about industrial
equipment?
The device is three-phase-powered.
I need this information for Canada and USA, if you can provide it for other
countries too, you are welcome.
Almost all countries worldwide use the same IEC standards that you'd use in
Austria for EMC. They may or may not be mandatory in certain countries but the
net is widening.
In the US the FCC largely governs this role.
U.S. Requirements
The general EMC requirements in the U.S. are set by the Federal Communications
Commission (FCC), while the Food and Drug Administration (FDA) regulates
medical products. Mandatory FCC requirements primarily concern computing
devices, defined as any electronic device or system that generates and uses
timing pulses at a rate in excess of 9000 cycles per second and uses digital
techniques. FCC Part 15 covers radio frequency devices capable of emitting RF
energy in the range of 9 kHz—200 GHz. Testing should be done according to ANSI
C63.4-1992.
Part 18 covers industrial, scientific, and medical (ISM) equipment (Figure 1),
defined as any device that uses radio waves for industrial, scientific, or
medical purposes and is not intended for radio communications. While most FCC
regulations only concern emissions, FDA also requires immunity for certain
life-support equipment. FCC Parts 15 and 18 include regulations as well as
technical aspects and limits. FCC Part 68, which governs the technical
requirements for registration of telecom terminal equipment, includes lightning
surge tests (surge immunity).
http://www.ce-mag.com/99ARG/EMCStandards61.html
Google is your friend.
FCC is easy to meet if you're already IEC / CE compliant.
Graham