Technical data

LVD TEST REPORT
Report Numbe r : KSQ-LVD 081010
Clause Requirement - Te st Result - Remark Verdict
Page 48 / 63
Equipment of overvoltage category III is equipment
in fixed installation s and for case s wh e re the
re liability an d the av ailab i lit y of the equipme nt is
subject to special requirements
N
Equipment of overvoltage category II is energy
consuming equipment to be supplied from the fixed
installa t i on
N
If such equipment is subjected to special
requirements with regard to reliability and
availability, overvoltage category III applies
N
Equipment of overvoltage category I is equipment
for connection to circuits in which measures are
take n to limit trans ien t ove rvo lta ge s to an
appropriate low level
N
L
ANNEX L (INFORMATIVE) GUIDANCE FOR THE MEASUREMENT OF
CLEARANCES AND CREEPAGE DISTANCES
Sequences for the determination of clearances and
creepage distances
P
M ANNEX M (NORMATIVE) POLLUTION DEGREE P
The information on pollution degrees is extracted
from IEC 60664-1
N
P ollution
N
The microenvironm ent determines the effect of
pollution on the insulation, taking into account the
microenvironment
N
Means may be provided to reduce pollution at the
insula tion by effective en closures or similar
N
Minimum clearances specified where pollution may
be present in the microenvironment
N
Degrees of pollution in the microenvironment
N
For evaluating creepage distances, the following
degrees of pollution in the microenvironment are
established:
N
- pollution degree 1: no pollution or only dry,
non-conductive pollution occurs. The pollution has
no influence
N