SMA STP 10000TL-10 Installation - Manual (Page 30)

6 Electrical Connection SMA Solar Technology AG
30 STP10-17TL-IA-en-32 Installation Manual
Cable Requirements
Connection of a Second Protective Conductor
In some installation countries, a second protective conductor is required in order to prevent a contact
current in the event of failure of the original protective conductor.
For installation countries falling within the scope of validity of the IEC standard 62109, the following
requirements are applicable:
• Installation of protective conductor at the AC terminal with a conductor cross-section of at least
10 mm² Cu.
or
• Installation of a second protective conductor at the earth terminal with the same cross-section as
the original protective conductor at the AC terminal (see Section 6.3.3 "Connecting the Second
Protective Conductor", page 34).
You must always observe the applicable regulations in the country of installation.
Position Description Value
A Cable diameter 14 mm to 25 mm
B Conductor
cross-section 1.5 mm² to 16 mm², with bootlace ferrule
maximum 10 mm²
C Stripping length approximately 12 mm
The PE wire must be 5 mm longer than the L and N wires.