Richard,

I field evaluated many conveyor systems in warehouses during my tenure at
UL. The guiding principle was always what the local "AHJ" asked for. Usually
a don't ask don't tell policy was in place. i.e. these systems are installed
after electrical inspections take place. So they do not call for
re-inspection. Some AHJ's will take the time to look at a system installed
using "Listed" parts. Some will require the entire unit to be listed as
installed, some will not care either way, and in many areas there simple is
no inspections period. (70% of Georgia has no inspections)

Of course, 29CFR1910 is brought into play AFTER someone is hurt or killed.
In the federal governments eyes ignorance of the law is no excuse.

John L. Allen, P.E.
Chief Electrical Engineer
Engineering and Fire Investigations
4405 International Blvd. Suite B-115
Norcross (Atlanta), Georgia  30093-3013
Tele: 800-245-9601 in GA: 770-925-9600
Fax: 770-925-9649  Cell: 404-931-4481
Visit our web site at http://www.efiinfo.com


-----Original Message-----
From: owner-emc-p...@ieee.org [mailto:owner-emc-p...@ieee.org]On Behalf
Of wo...@sensormatic.com
Sent: Tuesday, August 01, 2000 9:42 AM
To: emc-p...@majordomo.ieee.org
Subject: Industrial Control Equipment



My company has contracted for a motorized conveyer belt to be built. We will
be reselling the device into light industrial locations in the USA such as
warehouses. We requested that the equipment be Listed, but the contractor
says they have been selling these types of assemblies into this type of
environment for 20 years and have never been required to obtain Listing. Is
it common practice, in a warehouse environment, for non-UL Listed equipment
to be installed? I understood it to be an NEC and OSHA requirement that the
equipment be Listed or accepted by the inspector which they normally do not
do.


Richard Woods

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This message is from the IEEE EMC Society Product Safety
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