By Severin Theodore. Electrical Wiring. Publised at Wednesday, January 24th 2018, 17:28:44 PM. When including a PLC in the ladder diagram still remains. But, it does tend to become more complex. Figure 5 below shows a schematic diagram for a PLC based motor control system, similar to the previous motor control example.
By Severin Theodore. Electrical Wiring. Publised at Saturday, February 10th 2018, 22:56:56 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 Augustine Yvonne. Electrical Wiring. Publised at Tuesday, January 23rd 2018, 05:36:13 AM. Every type of machine has unique requirements when it comes to operator safety. From an electrical standpoint, industrial machine equipment and tools - from drill presses to multi-motored automatic machines - can present special fire and shock hazards.
By Blandine Honorine. Electrical Wiring. Published at Saturday, February 03rd 2018, 12:21:42 PM. A receptacle outlet is one in which one or more receptacles are installed for the purpose of attaching “plug and cord-connected” type devices, and a lighting outlet is one intended for a direct-wired connection to a lamp holder, luminaire (lighting fixture) or ceiling fan.
By Linda Cerise. Electrical Wiring. Published at Saturday, February 03rd 2018, 11:16:16 AM. You are required to run conductors and cables from terminal to terminal without splices. However, an exception allows you to install a splice in leads attached to electrical equipment, such as motors and solenoids.
By Babette Benjamine. Electrical Wiring. Published at Saturday, February 03rd 2018, 10:26:59 AM. You must totally enclose conductors and their connection external to the control panel enclosure in suitable raceways or enclosures. Unless used for flexible connections involving small or infrequent movements, or connections to normally stationary motors, limit switches and other externally mounted devices, fittings used with raceways or multiconductor cables must be liquidtight.
By Claudie Ulysse. Electrical Wiring. Published at Saturday, February 03rd 2018, 06:53:45 AM. Ensure that identification tags and cable markers are legible, marked with a permanent ink and suitable for the environment where the panel is to be used. They should also correspond with those shown in the machine drawings and instruction or service documentation.
By Blandine Honorine. Electrical Wiring. Published at Saturday, February 03rd 2018, 03:20:28 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 Saturday, February 03rd 2018, 02:17:12 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.
By Claudie Ulysse. Electrical Wiring. Published at Friday, February 02nd 2018, 22:36:45 PM. Two or more conductors may only be connected to a terminal that is designed for the purpose. The majority of connecting blocks will only take one or two conductors. Don’t force in any more.
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