By Augustine Yvonne. Electrical Wiring. Publised at Saturday, February 10th 2018, 23:53:48 PM. The terminations of shielded or screened conductors should be terminated so that the screen cannot fray. If the screen is to be connected then make it off in the same way as for coaxial cable with a soldered pigtail and a sleeve.
By Augustine Yvonne. Electrical Wiring. Publised at Tuesday, January 30th 2018, 16:32:34 PM. A conductor is a material which will allow an electric current to flow easily. In the case of a wire connection, it needs to be a very good conductor. Good conductors include most metals. The most common conductor used in wire is copper, although you may come across others such as aluminium. An insulator on the other hand is a material which does not allow an electric current to flow. Rubber and most plastics are insulators.
By Annette Noele. Electrical Wiring. Publised at Thursday, February 01st 2018, 07:42:06 AM. The combined cross-sectional area of all conductors and cables is not permitted to exceed 50% of the interior cross-sectional area of the raceway. The fill provisions are based on the actual dimensions of the conductors or cables used.
By Charline Rodrigue. Electrical Wiring. Published at Wednesday, January 24th 2018, 14:48:05 PM. When constructing junction boxes and pull boxes, you must be careful to exclude materials such as dust, flyings, oil and coolant. After you complete all wiring operations, you must seal all unused knockouts or openings.
By Linda Cerise. Electrical Wiring. Published at Wednesday, January 24th 2018, 14:31:15 PM. When electricity was originally used for practical purposes, it was used for communication in the form of the electric telegraph and the telephone. Petroleum and paraffin lamps were still lighting homes until the late 1800s, when Thomas Edison developed the light bulb.
By Charline Rodrigue. Electrical Wiring. Published at Wednesday, January 24th 2018, 13:27:55 PM. Modern electrical machine tool equipment may vary from that of a single-motor machine (such as a drill press that performs simple, repetitive operations) to very large, multimotored automatic machines, which contain highly complex electrical control systems. Typically, these machines are especially designed, factory-wired, tested by the builder and then erected in the plant.
By Augustine Yvonne. Electrical Wiring. Published at Wednesday, January 24th 2018, 11:53:01 AM. Both line and wiring diagrams are a language of pictures. It is not difficult to learn the basic symbols. Once you do, you are able to read diagrams quickly, and can often understand a circuit at a glance. The more you work with both line and wiring diagrams, the better you will become in analyzing them.
By Sylviane Marcelline. Electrical Wiring. Published at Wednesday, January 24th 2018, 10:58:28 AM. For grounded control circuits, you may use a green (with or without one or more yellow stripes) or a bare conductor to connect the transformer terminal to a grounding terminal on the control panel.
By Claudie Ulysse. Electrical Wiring. Published at Wednesday, January 24th 2018, 10:54:28 AM. This section requires you to support conductors in panels to keep them in place. You're permitted to use wiring channels if they're made of a flame-retardant insulating material. If you're working with back-connected control panels, you must provide access doors or swing out panels that swing about a vertical axis. Multiple-device control panels must have terminal blocks or attachment plugs and receptacles to terminate and connect all outgoing control conductors.
By Charline Rodrigue. Electrical Wiring. Published at Wednesday, January 24th 2018, 06:42:26 AM. You are required to use pressure connectors to connect conductors to devices with lug-type terminals that are not equipped with saddle straps or equivalent means of retaining conductor strands.
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