Doug, In the USA, IEEE Standards Coordinating Committee 28 (SCC 28) revised the ANSI C95.1 in 1991. This standard has subsequently been identified as ANSI/IEEE C95.1-1992, "IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz". This standard addresses exposure limits, rationale and some measurement procedures. I understand that it has recently been re-affirmed.
In addition, the IEEE issued a measurement standard IEEE Std C95.3-1991, titled "IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields -- RF and Microwave" In Canada, the Dept of Health and Welfare issued exposure guide identified as Safety Code 6, "Limits of Exposure to Radiofrequency Fields at Frequencies from 10 kHz - 300 GHz". This guide has just recently been revised. In Europe, the standards writing body known as CENELEC has issued an interim standard identified as ENV 50166-2, "Human Exposure to Electromagnetic fields High frequency (10 kHz- 300 GHz", Jan 1995. Hope this helps. Don Umbdenstock Sensormatic > ---------- > From: [email protected][SMTP:[email protected]] > Sent: Friday, June 05, 1998 8:08 AM > To: [email protected] > Subject: Need help on non-ionizing radiation > > > > Hello Group, > > I am seeking information on non-ionizing radiation, primarily for > workplace > safety. I am not actually concerned about the on-going controversy > dealing > with low-level radiation (VDTs, overhead lines, etc.). This is not to say > I > don't care, but I am currently interested in high-level non-ionizing > radiation which may actually be high enough to cause tissue heating. US > standards are probably most applicable but information from any source is > welcome. > > My company, among other things builds High Power RF fixed and variable > frequency generators ranging from 100 kHz to 40 MHz at power levels now > approaching 120 kW for some frequencies. Many times during test and > repair > these generators must be operated with the covers open. > > - What are acceptable limits? > - How do I monitor/measure? > > I have heard stories of a device (probe?) which resembles a bathroom scale > > and may be connected to a spectrum analyzer. A person or human body model > > stands on the device. It operates on the idea that electromagnetic > radiation received by a human body is conducted out through the ground > below. > > Thanks in advance for any help. > > Doug Powell > Compliance Engineer > Advanced Energy Industries, Inc. > Ft. Collins, Colorado USA > >
