Generally, non-ionizing emissions are electromagnetic fields from 0-300 GHz
- i.e., from static fields up to light frequencies.
The concern is with human exposure and not emissions. Thus, spurious
emissions would not normally be of concern, but intentional emissions could
be. Potential sources would include
* static fields (e.g., magnets and dc loops)
* magnetic fields from loops (e.g., degausers and motors)
* electric fields from high voltage devices (e.g., monitors)
* radio transmitter antennas
Richard Woods
----------
From: Patrick Lawler [SMTP:plaw...@west.net]
Sent: Thursday, January 13, 2000 11:49 AM
To: emc-p...@majordomo.ieee.org
Subject: Re: LVD Essential Requirement for Radiation Protection
What does 'non-ioniozing emissions' cover?
Is it in the category of personnel safety and low-frequency EMF, or
does it encompass simple product emissions like those specified in
CISPR 11?
On Wed, 12 Jan 2000 11:33:02 -0500, wo...@sensormatic.com wrote:
>An interesting thing has happened to the LVD. Until now, the
radiation
>essential requirement of the LVD has been interpreted as referring
to
>ionizing radiation and there are harmonized standards addressing
that
>requirement, for example, EN 60950. That interpretation has now
changed.
>
>In a draft mandate to CENELEC, CEN and ETSI, the Commission is now
>interpreting the radiation essential requirement of the LVD to
include
>non-ionizing emissions and that the limits for the general public
are to be
>per the Council's EMF Recommendation. The standards bodies are
mandated to
>produce basic and product standards that would apply to the LV and
R&TTE
>Directives.
>
>There are no worker limits promulgated at the EU level.
>
>Which leads me to my question. When would this new interpretation
of the
>essential requirement take effect - now or the DOW of the
associated
>standard?
--
Patrick Lawler
plaw...@west.net
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