KLS Martin group marLED E3 Service Manual page 144

a) Mobile lights
R = 0.3 Ω
imax
1 Mains cable
2 Protective conductor (PE) terminal
Protective conductor test
The protective conductor resistance is determined between the protective ground contact on the mains
plug and the two locations indicated in the illustrations using a measuring current of at least 200 mA. The
measured resistance must not exceed 0.3 Ω.
While performing the test, move the flexible mains cord repeatedly over its entire length!
Further details of the measurement can be found in section "Fixed lights", page 145.
Leakage current measurement for mobile lights with mains cable connection
The manufacturer recommends using the so-called "equivalent measurement" method according to
DIN EN 62353, section 5.3.3.2.2.
The test is conducted with the mains switch set to ON. Insert the mains plug of the light into the leakage
current tester. Since the tester automatically powers the light during testing, the light will be automatically
switched on and off during the process. The max. leakage current measured shall not exceed 1 mA.
If the measured value exceeds 5 mA, a different measuring method must be used in accordance with
DIN EN 62353, e.g.:
•
direct measurement acc. to section 5.3.3.2.3 or section 5.3.3.3.3;
•
differential current measurement acc. to section 5.3.3.2.4.
144
Operating Lights marLED® E3, E9, E9i, E15, battery and
marLED® E3 on ceiling tube Ø 110 mm
3 Measuring leads
4 Measuring instrument
Service Manual
Revision 2