AMERICAN ULTRAVIOLET Lesco SUPERSPOT MK III, Техническое справочное руководство

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2.0. Safety
The AUV/LESCO UV SPOTCURE system has been designed to operate safely.
Hundreds of AUV/LESCO UV curing systems are in operation in a wide variety of
industrial environments worldwide without any worker safety problems or health hazards.
However, this equipment can present worker safety problems if care is not taken to install
and operate it correctly.
IT IS VERY IMPORTANT THAT ALL PERSONNEL USING THE EQUIPMENT
BECOME FAMILIAR WITH THIS SAFETY INFORMATION.
The following information is provided concerning various aspects of worker safety with
this equipment. Because some features of the system may be new to personnel using
the equipment, an attempt has been made to provide a fairly extensive background on
these issues as well as to reference, where feasible, further information or U.S.
Government Standards.
With care in installation and operation, coupled with adequate worker training, no unusual
safety problems should arise.
2.1. Ultraviolet Radiation
Ultraviolet radiation (UV), which is emitted during normal operation of AUV/LESCO
SPOTCURE systems, can be dangerous to the eyes and skin. All personnel within close
vicinity of direct UV light should be required to wear goggles with UV certified lenses or
remain behind UV blocking light shielding. Personnel should also be prevented from
allowing any skin surface from coming within close proximity of the high intensity light
output(s).
Additionally, it is never advisable to stare directly at any high intensity light source,
whether visible or ultraviolet, for prolonged periods unless precautions have been taken
to reduce both visible and ultraviolet light to safe levels. Discomfort from excessive eye
exposure to UV light typically occurs about six hours after exposure. Personnel who
experience eye pain after possible exposure to direct UV light should see a doctor
immediately. Highly focused radiation, whether UV or visible light, can ignite paper and
similar combustible materials if brought in direct contact at or near the focal point. Care
should be taken to avoid this.
The American Conference of Governmental and Industrial Hygienists (ACGIH) and the
National Institute for Occupational Safety and Health (NIOSH) published guidelines on
threshold exposure. These values are related to the different UV spectra and time of
exposure.
There is no present US government standard on worker exposure to UV light. However,
there is a NIOSH document, "Criteria for a Recommended Standard - Occupational
Exposure to Ultraviolet Radiation" (No. HSM 73-11009), and several useful publications
are available from the Bureau of Radiological Health of the Food and Drug
Administration.