System for a presentation, sales or exhibition stand and/or for shop fitting and current collector for an electrical load in a system of this kind, and use of same

A current collector with a current-carrying wall element, wherein the current-carrying wall element comprises a carrier plate and a coating covering it;

• wherein the current-carrying wall element has first electrical conductor tracks with a first polarity and second electrical conductor tracks with a second polarity, wherein the first and second electrical conductor tracks are arranged alternately at least in sections;
• wherein the current collector is for an electrical consumer, which is configured to be attached to the current-carrying wall element;
• wherein the current collector has a plurality of at least three contact needles,
• wherein the current collector is configured to be attached to the current-carrying wall element in such a way that at least one of the contact needles contacts one of the first electrical conductor tracks and at least one other of the contact needles contacts one of the second electrical conductor tracks;
• and
• wherein a first contact needle, a second contact needle, and a third contact needle of the plurality of contact needles are arranged such that they lie on a circle.

A method, comprising the steps:

• providing a current-carrying wall element;
• providing a current collector for an electrical supply consumer who is set up to be attached to the wall element;
• wherein the current-carrying wall element comprises a carrier plate and a coating covering it;
• wherein the current-carrying wall element has first electrical conductor tracks of a first polarity and second electrical conductor tracks of a second polarity, the first and second electrical conductor tracks being arranged alternately at least in sections;
• wherein the current collector has a plurality of at least two contact needles, in particular at least three contact needles,
• wherein the current collector is set up to be fastened to the current-carrying wall element in such a way that at least one of the contact needles contacts one of the first electrical conductor tracks and at least one other of the contact needles contacts one of the second electrical conductor tracks;
• wherein the current collector comprises replaceable contact needles;
• and
• changing the replaceable contact needles;
• and
• attaching the current collector to the current-carrying wall element in such a way that a first of the contact needles contacts one of the first electrical conductor tracks and at least one other of the contact needles contacts one of the second electrical conductor tracks.