This seems to imply that as long as your sticking a device normally subject to
the published limits and tests can be ignored if it is going into a large
industrial park. So for example and automated box sealing equipment located
inside of an industrial part is exempted from the limits and tests normally
associated with digital equipment. There is still the caveat that it can't
interfere but I assume that this would only happen because of a complaint from
adjacent users. How about theme parks etc. The public utilities in the US have
many exemptions to the regulations but not industrial locations. I presumed
that testing in those case for large equipment that didn't fit in a chamber was
subject to at least in-situ testing. But I'm clueless how those measurements
would include or exclude the devices EMC performance.
15.103 Exempted devices.
The following devices are subject only to the general conditions of operation
in ยงยง15.5 and 15.29 and are exempt from the specific technical standards and
other requirements contained in this part. The operator of the exempted device
shall be required to stop operating the device upon a finding by the Commission
or its representative that the device is causing harmful interference.
Operation shall not resume until the condition causing the harmful interference
has been corrected. Although not mandatory, it is strongly recommended that the
manufacturer of an exempted device endeavor to have the device meet the
specific technical standards in this part.
(a) A digital device utilized exclusively in any transportation vehicle
including motor vehicles and aircraft.
(b) A digital device used exclusively as an electronic control or power system
utilized by a public utility or in an industrial plant. The term public utility
includes equipment only to the extent that it is in a dedicated building or
large room owned or leased by the utility and does not extend to equipment
installed in a subscriber's facility.
Gary McInturff
Reliability/Compliance Engineer
Esterline Interface Technologies
Featuring
ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products
600 W. Wilbur AvenueCoeur d'Alene, ID 83815-9496
Toll Free: 800-444-5923
Tel: (208) 635-8306
www.esterline.com/interfacetechnologies<http://www.esterline.com/interfacetechnologies>
Technology, Innovation, Performance...
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