The dielectric strength is determined between two electrically separated connections or between the casing and the electrically separated connections, by applying an alternating voltage.
The description of the dielectric strength is valid for all electrical connections (there is no reference to any electrical connection). If there are different descriptions for some electrical connections, a further description of the dielectric strength is defined for each difference (with reference to the concerned connection).
Figure 24: Structure of dielectric strength
Example for content:
Representation example for dielectric strength
Denomination
|
Abbreviation
|
Min
|
Type
|
Max
|
Abs
|
Tol
|
Unit
|
|
Voltage
|
US
|
450
|
500
|
550
|
|
|
V
|
|
Temperature
|
TP
|
17
|
22
|
27
|
|
|
°C
|
|
Test duration
|
tP
|
0,95
|
1
|
1,05
|
|
|
min
|
|
Frequency
|
f
|
|
50
|
|
|
|
Hz
|
|
rel. humidity
|
hum
|
67,5
|
75
|
82,5
|
|
|
%
|
|
Besides the measuring voltage and the frequency, there can always be given additional specifications for each test, e.g. the test set-up.
|