![]() Let's say we're adding two more conduits on the left side of our junction box from our earlier example, and we're adding one 4-inch conduit and one 1-inch conduit for angle pulls towards the bottom of the box where will have three 2-inch conduits. In that case, we should calculate the minimum length due to the straight pulls (using our first equation), find the minimum size due to the angle pulls (using the second equation), and use whichever is larger between the two. Suppose a junction box has horizontal straight pulls and angle pulls from its left or right side. We say "another" because this is another specification our box must follow. , t n t_n t n – Conduit sizes of the smaller conduits on the same row as the considered largest conduit.įor example, if we consider a wire entering from the box's left side, we calculate another minimum length measurement of our junction box. We'll also have enough room for the necessary bending of cables so we don't end up folding the wires sharply, which could damage their insulation. Just like when choosing the correct wire sizes or wire gauges suitable for our electrical needs, these boxes should also have the appropriate dimensions to accommodate the wires that enter them. We call these boxes our junction boxes or pull boxes (as we pull wires to them before inserting them back into other conduits). We then connect these conduits using connectors and boxes where we can reorganize the wires to direct them to the locations they need to be. ![]() Since we don't want our cables lying around the floor or within the walls and ceiling, we use conduits like tubings and pipes to keep the wires together organized. Connecting various devices like lighting fixtures and outlets to the power source means lots of cables to manage. Until now, the easiest way to transport electricity from a power source to any equipment throughout a structure is through electrical wires.
0 Comments
Leave a Reply. |