By Babette Benjamine. Electrical Wiring. Publised at Saturday, July 29th 2017, 15:58:18 PM. It is uncommon for engineers to build their own PLC panel designs (but not impossible of course). For example, once the electrical designs are complete, they must be built by an electrician. Therefore, it is your responsibility to effectively communicate your design intentions to the electricians through drawings.
By Blandine Honorine. Electrical Wiring. Published at Friday, January 19th 2018, 04:11:12 AM. The dedication of panels by power class is the most efficient measure to obtain an excellent “EMC” result. Moreover, separate routing of disturbing and sensitive cables ensures minimum coupling.
By Babette Benjamine. Electrical Wiring. Published at Friday, January 19th 2018, 01:01:51 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 Annette Noele. Electrical Wiring. Published at Thursday, January 18th 2018, 23:29:05 PM. 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 Linda Cerise. Electrical Wiring. Published at Thursday, January 18th 2018, 17:55:14 PM. Line diagrams, also called “schematic” or “elementary” diagrams, show the circuits which form the basic operation of the controller. They do not indicate the physical relationships of the various components in the controller. They are an ideal means for troubleshooting a circuit.
By Claudie Ulysse. Electrical Wiring. Published at Thursday, January 18th 2018, 16:50:41 PM. In general, contactors should be kept away from electronic devices. A highly disturbing device (variable speed drive, frequency converter, etc.) will have less radiation in the panel if it is “encapsulated” in a small, electromagnetically sealed, unpainted metal enclosure.
By Augustine Yvonne. Electrical Wiring. Published at Thursday, January 18th 2018, 16:30:03 PM. 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 Thursday, January 18th 2018, 16:16:34 PM. Electrical equipment uses a wide variety of wire and cable types and it is up to us to be able to correctly identify and use the wires which have been specified. The wrong wire types will cause operational problems and could render the unit unsafe.
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