Requirements for MBJ are given in NEC 250. MBJ need to be un-spliced and can be made of wire, busbar or screw. Aluminum alloys are also permitted where environment is acceptable. [0m:17s] Also, sometimes referred to as a jumper bar or terminal block jumper, a jumper is typically a short length of conductor, commonly copper, that is used to connect two or more points within an electrical circuit. In this short article, we focus on the jumpers that may be used to link multiple blocks together. It covers placement, routing, insulation, bonding, and documentation to ensure electrical integrity and long-term performance. These best practices strengthen reliability and serviceability. Jumper wires play a critical. The purpose of this document is to provide guidance on the application and use of jumpers and non-tension connectors on overhead lines for use on the Northern Powergrid distribution network.
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