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17
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7.3 Measuring equivalent leakage current (IEL)
The objective of this test is to ensure that leakage current between Phase or
Neutral and the earth connector of the mains power supply is satisfactory and
low enough to satisfy the relevant standard.
(1) Connection is the same as shown for the measurement of insulation
resistance.
(see clause 7.2)
(2) Set the range switch to the "IEL 20mA" position.
(3) Switch the DUT on.
(4) Read the measured value in "mA" from the LCD.
Result
Equivalent leakage current may not fall short of below values.
According to DIN VDE 0702, the measured current value between the
components to which voltage is applied during operation and exposed metal
parts may not exceed 7mA, or 15mA for devices with heating power of greater
than or equal to 6kW.
This instrument has LED indications which illuminate when the resulting
measurement is below the DUT threshold value of 7.0mA or 15.0mA.
(according to DIN VDE 0702)
CAUTION
●
This instrument performs a "substitute leakage" test by applying a safe
test voltage of AC30V between Phase or Neutral and the earth connector
of the DUT. The results are displayed as thought the DUT would be
powered from a supply voltage of 230V. The resultant measurement is to
be accepted as advisory and not as an absolute measurement.
●
Devices that are fitted with a differential mains filter will display the value
which is greater than the actual value.
！
Safety class
VDE0701
VDE0702/200
VDE0702
Ⅰ
Ⅰ
(with heating elements)
1mA/kW
−
15mA(with heating power:
6kW or more)
Ⅱ
3.5mA
1mA
7mA
0.5mA
1mA
−
Fig.16
