Standards - Omron H3CR-A Manual

Standards

National Standards
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SEMKO
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SEV
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UTE
IMQ
KEMA
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IEC (International
Electrotechnical
Commission)
UL Standards (Underwriters
Laboratories INC.)
CSA Standards (Canadian
Standards Association)
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FIMKO (SETI)
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GL
GL
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9876
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The IEC is a standardization commission founded in 1908 to promote unification and coordination of
international standards relating to electricity. It is headquartered in Geneva, Switzerland.
At present there are 43 member nations in the IEC including Japan, and these member nations are
quickly conforming to the IEC standards.
A nonprofit organization established in 1894 by the American association of fire insurance compan-
ies.
Underwriters Laboratories (abbreviated to UL hereafter) conducts approval testing on all kinds of
electrical products. In many U.S. cities and states, UL approval is legally required on all electrical
items sold.
In order to obtain UL approval on an electrical product, all major internal components also require UL
approval.
UL offers two classifications of approvals, the listing mark and the recognition mark.
A Listing Mark constitutes a entirely approval of a product. Products display the Listing Mark shown
below.
u
LISTING MARK
The Recognition Mark applies to the components used in a product, and therefore constitutes a more
conditional approval of a product. Products display the Recognition Mark shown below.
R
RECOGNITION MARK
This association descended from a nonprofit, non-government standardization organization estab-
lished in 1919. In addition to industrial standardization, the association now carries out safety testing
on electrical products.
CSA has closer ties to government agencies than UL, so that electrical products not approved by
CSA cannot be sold in Canada. Non-approved goods being sold illegally may have to be withdrawn.
CSA approval is known as "certification," and consequently, CSA-approved equipment is referred to
as "certified equipment." Products display the mark shown below. For a conditional certification,
products display component acceptance mark.
C
CERTIFICATION MARK
NK
Electrical Appliance
and Material Control
Law of Japan
JO
CSA
C
UL
uR
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