SMA SHP 125-US-20, Руководство по эксплуатации

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10 Disconnecting the Inverter from Voltage Sources SMA Solar Technology AG
Operating manual SHP-US-20-BE-en-10 59
8. Ensure that no voltage is present between the
positive terminal and negative terminal on the DC
surge protection devices using a suitable measuring
device. To do so, insert the test probe (maximum
diameter: 2.5 mm (0.078 in)) into the measuring
points of the DC surge protection devices.
0.0V 0.0V
9. Ensure that no voltage is present between the
positive terminal and ground as well as between the
negative terminal and ground on the DC surge
protection devices using a suitable measuring
device. To do so, insert a test probe (maximum
diameter: 2.5 mm (0.078 in)) into the measuring
points of the DC surge protection devices and hold
the other one, for example, on the enclosure.
0.0V 0.0V
10. Ensure that there is no voltage on the AC terminal
block between L1 and grounding conductor, L2 and
grounding conductor, and L3 and grounding
conductor using a suitable measuring device. To do
so, insert the test probe (maximum diameter: 2.5 mm
(0.078 in)) into the measuring points of the
respective terminal blocks.
L1 L2 L3
0.0V 0.0V
PE