SMA SB 1.5-1VL-40 - Manual (Page 23)

Safety in accordance with IEC 62109 when the grounding conductor monitoring is
deactivated
In order to guarantee safety in accordance with IEC 62109 when the grounding conductor
monitoring is deactivated, carry out one of the following measures:
• Connect an additional grounding that has at least the same cross-section as the
connected grounding conductor to the connecting terminal plate for the AC cable (see
Section 6.3.3, page 25). This prevents touch current if the grounding conductor at the
connecting terminal plate for the AC cable fails.
Connection of additional grounding
In some countries, additional grounding is generally required. In each case, observe the
locally applicable regulations.
• If additional grounding is required, connect an additional grounding that has at least the
same cross-section as the connected grounding conductor to the connecting terminal
plate for the AC cable (see Section 6.3.3, page 25). This prevents touch current if the
grounding conductor at the connecting terminal plate for the AC cable fails.
6.3.2 Connecting the Inverter to the Utility Grid
Requirements:
☐ Only the AC connector supplied may be used.
☐ The connection requirements of the grid operator must be met.
☐ The grid voltage must be in the permissible range. The exact operating range of the inverter is
specified in the operating parameters.
Procedure:
1. Disconnect the circuit breaker and secure it against reconnection.
2. Unscrew the swivel nut from the cable gland for
the AC connection.
3. Thread the swivel nut over the AC cable.
4. Thread the AC cable through the cable gland.
6 Electrical Connection SMA Solar Technology AG
Operating Manual 23 SB15-25-BE-en-10