SMA STP 15000TL - Manual (Page 27)

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 with the same cross-
section as the connected grounding conductor to the connecting terminal plate for the AC
cable (see Section 6.3.3, page 28). 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
☐ 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 from all three line conductors and secure against reconnection.
2. If the lower enclosure lid is mounted, loosen all screws of the lower enclosure lid using an
Allen key (AF 3) and lift the enclosure lid from below and remove it.
3. Remove the adhesive tape from the enclosure opening for the AC cable.
4. Insert the cable gland from the outside into the
enclosure opening and tighten it from the inside
with the counter nut.
5. Route the AC cable into the inverter through the cable gland. If necessary, slightly loosen the
swivel nut of the cable gland.
6. Remove the sheath from the AC cable.
7. Shorten L1, L2, L3 and N by 5 mm each.
8. Strip off the insulation of L1, L2, L3, N and PE by 12 mm.
9. Push the safety levers of the AC connecting terminal plate right up to the stop.
6 Electrical Connection SMA Solar Technology AG
Operating Manual 27 STP15-17TL-10-BE-en-10