Instruction manual

Page 66 of 100 Report No. 255837
TRF No. IEC60335_2_40F
IEC 60335-2-40
Clause Requirement – Test Result Verdict
Degrees of pollution in the microenvironment —
For evaluating creepage distances, the following degrees of pollution in the
microenvironment are established:
—
- pollution degree 1: no pollution or only dry,
non-conductive pollution occurs. The pollution has
no influence
N/A
- pollution degree 2: only non-conductive pollution
occurs, except that occasionally a temporary
conductivity caused by condensation is to be
expected
Pollution degree 2. P
- pollution degree 3: conductive pollution occurs or
dry non-conductive pollution occurs that becomes
conductive due to condensation that is to be
expected
N/A
- pollution degree 4: the pollution generates
persistent conductivity caused by conductive dust
or by rain or snow
N/A
N
ANNEX N (NORMATIVE)
PROOF TRACKING TEST
—
The proof tracking test is carried out in accordance with IEC 60112 with the following
modifications:
—
7 Test apparatus —
7.3 Test solutions —
Test solution A is used
Solution A:
0,1% NH
4
Cl in de-ionized
water.
P
10 Determination of proof tracking index (PTI) —
10.1 Procedure —
Proof voltage is 100 V, 175 V, 400 V or 600 V ....... :
175V P
Last paragraph of clause 3 applies
P
The test is carried out on five specimens
P
In case of doubt, additional test with proof voltage
reduced by 25 V, the number of drops increased to
100
N/A
10.2 Report —
The report stating if the PTI value was based on a
test using 100 drops with a test voltage of (PTI-25) V
N/A