By Charline Rodrigue. Electrical Wiring. Publised at Monday, August 28th 2017, 02:21:14 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 Annette Noele. Engine Wiring. Published at Friday, January 19th 2018, 13:53:09 PM. Now just reinstall the valves and reset the valve clearances per your engine’s specifications. Now that you have replaced the valves, cut the seats, and confirmed it all makes contact with each other, your engine will start easier, produce more power, and give you less trouble as you work them.
By Sylviane Marcelline. Engine Wiring. Published at Friday, January 19th 2018, 11:48:04 AM. To measure voltage on a battery for example you first turn your meter to DC Voltage. Place the red probe on the positive terminal of the battery and place the black probe on the negative side of the battery or on a common ground. Your voltage will display on the screen.
By Blandine Honorine. Electrical Wiring. Published at Friday, January 19th 2018, 11:14:26 AM. After successful completion, the troubleshooter can improve their understanding of DC, AC, three phase circuits, Relays, Contactors, PLC, Electronics, and other related technology.
By Blandine Honorine. Electrical Wiring. Published at Friday, January 19th 2018, 10:47:39 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 Charline Rodrigue. Electrical Wiring. Published at Friday, January 19th 2018, 10:34:45 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 Charline Rodrigue. Electrical Wiring. Published at Friday, January 19th 2018, 07:09:07 AM. Wires and cables (conductors) are insulated and protected by a variety of materials (insulators) each one having its own particular properties. The type of material used will be determined by the designer who will take into account the environment in which a control panel or installation is expected to operate as well as the application of individual wires within the panel.
By Babette Benjamine. Electrical Wiring. Published at Friday, January 19th 2018, 07:00:58 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.
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