Between the EBB and the main board, the cable should be sized for fault current (typically ≥6 mm² copper) and can either connect directly to the main board or via local distribution, as long as total resistance stays ≤0. Daisy-chaining multiple EBBs is acceptable if this. The figure below shows how to connect the equipotential bonding of the connection boxes to the equipotential busbars. Personalization saves you typing! If you have already been registered, you can login directly. If you are not registered yet, you can inform and register yourself without obligation. The IET regulations require that the resistance of the conductors, including the resistance of the connections, between the terminals for the protective conductor of socket-outlets and of fixed equipment or any extraneous-conductive-parts and the equipotential bonding busbar (EBB) shall not exceed. must be connected. An internal and external connection point located at the empty enclosures is provid d for this purpose. In this case, potentially hazardous metal elements will have the same potential, which reduces the possibility of electric. Another option for HF-capable equipotential bonding at a connection box is the following cable gland with an M6 stud bolt: You can install this cable gland at a connection box that still has a free cable bushing of size M16 or M25.
