There are many situations where it is necessary to join two busbars to create a single, unified unit. This process, called “jointing,” may be needed to create a longer busbar from shorter, more manageable pieces; or to create a T-shaped tap-off connection from the main busbar. The result of. In Simple words, a bus-bar is a common connection point or a node for multiple incoming and outgoing circuits such as power lines or feeders. Hence we use bus bars, where these connections can be done spaciously and. Siemens uses a Belleville washer on each side of the joint and 1/2" SAE Grade 5 Carbon Steel Bolts, with a torque of 50 ft-lbs: All splice plates can be accessed, bolted and unbolted from the front of the switchboard to make connections of adjacent sections easy. Made from. I'm watching a various switchboard busbars systems and I noticed that when we have two busbars per phase, in some switcboards they are spaced at some distance, while in other they just lay side by side. I attached picture for better understanding.
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