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PER IEC1010 Pollution degree
POLLUTION
Addition of foreign matter, solid, liquid or gaseous (ionized
gases), that may produce a reduction of dielectric strength or
surface resistivity.
POLLUTION degree
For the purpose of evaluating spacing of this product, the
following degrees of POLLUTION in the microenvironment
are defined.
POLLUTION DEGREE 1
No POLLUTION or only dry, non-conductive POLLUTION
occurs. The POLLUTION has no influence.
POLLUTION DEGREE 2
Normally POLLUTION only non-conductive POLLUTION
occurs. Occasionally, however, a temporary conductivity
caused by condensation must be expected.
POLLUTION DEGREE 3
Conductive POLLUTION occurs, or dry, non-conductive
POLLUTION occurs which becomes conductive due to con-
densation, which is expected.
NOTE :
In such conditions equipment is
normally
protected
against exposure to direct sunlight, precipitation, and
full wind pressure,
but neither temperature nor
humidity is controlled.
Safety Compliance And Certification
Safety compliance
The Meter conform to CENELEC
LVD (Low-Voltage rective)
73/23/EEC and EMC
(Electromagnetic Compatibility
directive)
89/336/EEC
The Meter meet the requirements to IEC 61010-1 (2001) ,
EN 61010-1 (2001), UL 3111-1 (Jan.1994)
CSA C22.2 NO.1010-1-92 +A2: Feb. 1997
Safety Certification :
