EMI/EMC-standars in Canada and USA?

[Manfred W.]

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.

Kind regards

Manfred W.

 

[Pooh Bear]

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

 

[[email protected]]

Manfred:

If you go to:

http://www.access.gpo.gov/nara/cfr/waisidx_01/47cfr15_01.html

you can download the FCC Part 15 regulations for the USA. You need to
meet the Class A requirements which cover non-residential uses.
Industry Canada has similar requirements, a web search of "Industry
Canada" should give you some results. From your name I would guess you
are from Germany, sl you are familiar with the EU requirements.

Let us know if there is any further info you need.

H. R. (Bob) Hofmann

 

[maz]

Hi Manfred here below the limit according generic standard, but you
have to check if your products have specific standards (e.g. inverter
or other)

According to EN61000-6-3(Europe) (Electromagnetic compatibility - Part
6-3: Generic standard - : Emission standard for residential,
commercial and light industry. )
limits are
-radiated emission
30 to 230MHz 30dBuV/m
230 to 1000MHz 37dBuV/m

-conducted emission

0.15 to 0.50MHz Qp=66 to 56*dBuV Av=56 to 46*dBuV * Decreasing
linearly with the logarithm of the frequency
0.50 to 5MHz Qp=56dBuV Av=46dBuV
5 to 30MHz Qp=60dBuV Av=50dBuV

According to FCC §15.109 (US)
- radiated emission
30 to 88 MHz 39.1 dBuV/m
88 to 216MHz 43.5 dBuV/m
216 to 960MHz 46.5 dBuV/m
above 960MHz 49.5 dBuV/m

-conducted
0.15 to 0.50MHz Qp=79 dBuV Av=66dBuV
0.50 to 5MHz Qp=73dBuV Av=60dBuV
5 to 30MHz Qp=73dBuV Av=60dBuV