Jumper wires shall never be placed or configured to resemble permanent wiring. Qualified Person means a person who by possession of a recognized. Metal raceways, cable armor, and other metal enclosures for conductors shall be metallically joined together into a continuous electric conductor and shall be so connected to all boxes, fittings, and cabinets as to provide effective electrical continuity. What is the difference between a distribution frame and a jumper frame Customarily, you can understand it as two different things: the jumper frame is used to transmit voice signals; the distribution frame is used to transmit. Today we will show you some of the different types of jumpers that you might encounter and also how to install and use these jumpers. [0m:34s] The jumpers you use may differ from the ones we will. Questions, such as those above, have been raised on the methods that are allowed to comply with section 250. 148 when installing branch circuit wiring with devices in metal device boxes. The wiring method could be non-metallic, such as an NM-B cable, or metallic, such as an AC cable, MC cable, or. Dangers of jumper links or bridges and why they should not be used on distribution boards across circuit breakers.
