Technical data

LVD TEST REPORT
Report Numbe r : KSQ-LVD 081010
Clause Requirement - Te st Result - Remark Verdict
Page 37 / 63
Clearance between surfaces of PTC heating
elements may be reduced to 1mm
N
Lacquered conductors of windings assumed to be
bare conductors, but the clearances specified in
table 16 are reduced by 0.5mm for rated impulse
voltages of at least 1500V
N
29 .1 .5
Appliances having higher working voltage than
rated voltage, the voltage used for determining
clearances from table 16 is the sum of the rated
impulse voltage and the difference between the
peak value of the working voltage and the peak
valueoftheratedvoltage
N
If the secondary winding of a step-down transformer
is earthed, or if there is an earthed screen between
the primary and secondary windings, clearances of
basic insulation on the secondary side not less than
those specified in table 16, but using the next lower
step for rated impulse voltage
N
Circuits supplied with a voltage lower than rated
voltage, clearances of functional insulation based
on the working voltage used as the rated voltage in
table 15
N
29.2
Creepage distances not less than those appropriate
for the working voltage, taking into account the
material group and the pollution degree
Th is eq uip m en t is he atin g w i ring P
Pollution degree 2 applies, unless
P
precautions taken to protect the insulation; pollution
degree 1
N
insulation subjected to conductive pollution;
pollution degree 3
N
The microenvironment is pollution degree 3 , N
unless the insulation is enclosed or located so that it
is un l ikely to be exposed to po llution du r ing no r mal
use of the appliance
N
Comp liance is checked by inspection and
measuremen ts as specified
N
29 .2 .1
Creepage distances of basic insulation not less than
specified in table 17
Th is eq uip m en t is he atin g w i ring P