This document specifies requirements for electrical installations for the shore supply of berthing inland navigation vessels with electrical energy, three-phase current 400 V, 50 Hz with a rated current of up to 125 A. This document applies to the supply of inland navigation vessels in ports and moorings for commercial inland navigation. This part of EN 15869 specifies general requirements and contains information on the billing procedure. For the supply of small craft and houseboats in marinas and similar installations, the requirements of IEC 60364-7-709 apply. For electrical shore connections with a current rating more than 125 A, which are suitable for passenger ships with hotel operation, EN 16840 applies. The requirements for the HD 60364 and HD 384 series generally apply to low-voltage systems on shore. A detailed list of the relevant parts is given in the Bibliography.