By Annette Noele. Electrical Wiring. Publised at Tuesday, January 16th 2018, 19:03:51 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 Annette Noele. Electrical Wiring. Publised at Thursday, February 01st 2018, 07:32:39 AM. • 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 Claudie Ulysse. Electrical Wiring. Publised at Tuesday, February 06th 2018, 22:03:03 PM. 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 Monday, March 12th 2018, 00:42:53 AM. 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 Blandine Honorine. Electrical Wiring. Published at Thursday, February 15th 2018, 15:33:27 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 Augustine Yvonne. Electrical Wiring. Published at Thursday, February 15th 2018, 15:32:49 PM. 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 Thursday, February 15th 2018, 14:13:11 PM. 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 Annette Noele. Engine Wiring. Published at Thursday, February 15th 2018, 07:01:16 AM. The valve seat cutters require perfect valve guides to cut accurately. Measure your valve guides and compare them to your engine’s specifications to make sure they are centered and not overly worn. If they are worn, you can either replace them or use a special cutter pilot before continuing.
By Claudie Ulysse. Engine Wiring. Published at Sunday, February 11th 2018, 18:11:29 PM. As the piston in your engine moves downward it creates a vacuum which draws in air through the intake end of the carburetor. As the air travels through the venturi, the air’s pressure drops, and fuel is drawn down from the fuel bowl, and then back up through the main jet and emulsion tube. The low pressure air mixes with and atomizes the fuel. This air/fuel mixture continues through the intake valve and into your combustion chamber.
By Augustine Yvonne. Electrical Wiring. Published at Sunday, February 11th 2018, 17:06:58 PM. Wiring diagrams show the connections to the controller. Wiring diagrams, sometimes called “main” or “construction” diagrams, show the actual connection points for the wires to the components and terminals of the controller.
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