By Babette Benjamine. Electrical Wiring. Publised at Friday, January 19th 2018, 04:49:43 AM. Dashed lines are drawn between the symbols to denote which switches control specific lights or receptacles. There are quite a few symbols used to represent the devices used in home electrical wiring but some of them are very similar, so care should be used when working with them!
By Sylviane Marcelline. Electrical Wiring. Publised at Thursday, February 15th 2018, 14:13:11 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 Claudie Ulysse. Electrical Wiring. Publised at Saturday, November 18th 2017, 18:25:14 PM. • Black represents ungrounded line, load and control conductors at line voltage. • Red represents ungrounded AC control conductors, at less than line voltage. • Blue represents ungrounded DC control conductors. • Yellow represents ungrounded control circuit conductors that may remain energized when the main disconnecting means is in the OFF position. These conductors must be yellow throughout the entire circuit, including wiring in the control panel and the external field wiring. • White or natural gray represents a grounded circuit conductor. • White with blue stripe represents a grounded DC current-carrying circuit conductor. International and European standards require you to use light blue for the neutral conductor. • White with yellow stripe represents grounded AC current-carrying control circuit conductors that remain energized when the disconnecting means is in the OFF position. For additional circuits powered from different sources that remain energized when the main disconnecting means is in the OFF position, you must use striping colors other than green, yellow or blue to uniquely identify the grounded conductors.
By Blandine Honorine. Electrical Wiring. Published at Saturday, February 03rd 2018, 12:21:42 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 Linda Cerise. Electrical Wiring. Published at Saturday, February 03rd 2018, 11:16:16 AM. 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 Babette Benjamine. Electrical Wiring. Published at Saturday, February 03rd 2018, 10:26:59 AM. Workshops manufacturing parts in PVC or rubber use high-frequency welding processes to perform assembly. The propagation of strong magnetic fields and high-frequency waves is not easily controllable.
By Claudie Ulysse. Electrical Wiring. Published at Saturday, February 03rd 2018, 06:53:45 AM. 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 Saturday, February 03rd 2018, 03:20:28 AM. 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 Charline Rodrigue. Electrical Wiring. Published at Saturday, February 03rd 2018, 02:17:12 AM. 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 Claudie Ulysse. Electrical Wiring. Published at Friday, February 02nd 2018, 22:36:45 PM. 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.
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