Safety Requirement Standards - YOKOGAWA EJX110A Installation Manual

2.7 Safety Requirement
Standards
Applicable standard: EN 61010-1, EN 61010-2-30,
C22.2 No.61010-1, C22.2 No.61010-2-030
(1) Pollution Degree 2
"Pollution degree" describes the degree to which
a solid, liquid, or gas which deteriorates dielectric
strength or surface resistivity is adhering. " 2 " applies
to normal indoor atmosphere. Normally, only non-
conductive pollution occurs. Occasionally, however,
temporary conductivity caused by condensation must
be expected.
(2) Installation Category I
"Overvoltage category(Installation category)"
describes a number which defines a transient
overvoltage condition. It implies the regulation for
impulse withstand voltage. " I " applies to electrical
equipment which is supplied from the circuit when
appropriate transient overvoltage control means
(interfaces) are provided.
(3) Altitude of installation site:
Max. 2,000 m above sea level
(4) Indoor/Outdoor use
<2. Handling Cautions>
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IM 01C25A01-01E