By Severin Theodore. Electrical Wiring. Publised at Wednesday, January 24th 2018, 17:28:44 PM. A lamp inside an enclosure provided for use during maintenance is an example of such a circuit. The control panel may be isolated but the lamp will require power so that the engineer can see while working on it.
By Severin Theodore. Electrical Wiring. Publised at Saturday, February 10th 2018, 22:56:56 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 Augustine Yvonne. Electrical Wiring. Publised at Tuesday, January 23rd 2018, 05:36:13 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 Annette Noele. Electrical Wiring. Published at Saturday, January 20th 2018, 03:31:50 AM. 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 Sylviane Marcelline. Electrical Wiring. Published at Saturday, January 20th 2018, 02:36:35 AM. 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 Augustine Yvonne. Electrical Wiring. Published at Saturday, January 20th 2018, 01:45:37 AM. 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.
By Blandine Honorine. Electrical Wiring. Published at Saturday, January 20th 2018, 01:41:31 AM. When the current is switched on or off, the electro-magnetic field increases and decreases, rapidly causing, in effect, a radio signal. The effect is similar to the crackle that can sometimes be heard on the radio or television when something like a fridge switches on and off. This radiated signal can be picked up by the other wires in the system and cause interference to the normal working voltages in the system
By Augustine Yvonne. Electrical Wiring. Published at Friday, January 19th 2018, 21:33:17 PM. 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 Claudie Ulysse. Electrical Wiring. Published at Friday, January 19th 2018, 20:08:48 PM. Conductors and cables should run from terminal to terminal without any intervening joins. This refers to making a joint in the middle of a wire or cable. If it is necessary for any reason then use a suitable connector or terminal block. Don’t use a twisted and soldered joint.
By Blandine Honorine. Electrical Wiring. Published at Friday, January 19th 2018, 17:49:47 PM. Connections should be secured against accidental loosening. Correctly tighten terminal screws and where a connecting plug is fitted, use the clamps or screws provided to secure it to its mating socket.
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