Assembly with two energy guide chains and adjustable fixed point

An assembly for supplying power to a mobile load in a vertical application, such as a drilling rig comprising:

• an energy chain for guiding at least one cable between a first connection point and a second connection point that is movable relative thereto and travels along a travel path of the load, between a first end position and a second end position, wherein a first end of the energy chain is fixed to the first connection point, and a second end of the energy chain is fixed to the second connection point;
• comprising:
• a displaceable carriage on which the first connection point and a third connection point are provided and which is displaceable between an operating position which is located in the central region between the first and the second end position, and a parked position between the operating position and the second end position;
• and
• an auxiliary energy chain for guiding the at least one cable between the third connection point on the displaceable carriage and a stationary fourth connection point.