By Annette Noele. Electrical Wiring. Publised at Friday, September 15th 2017, 09:06:53 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. Electrical Wiring. Published at Tuesday, August 15th 2017, 22:09:14 PM. Where the circuits work at different voltages, the conductors must be separated by suitable barriers or all the wires insulated for the highest voltage to which any conductor may be subjected.
By Charline Rodrigue. Electrical Wiring. Published at Sunday, August 13th 2017, 20:57:13 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 Charline Rodrigue. Engine Wiring. Published at Wednesday, August 02nd 2017, 18:14:16 PM. First apply some of the lapping compound to the valve face area with your finger. It only requires a small amount of compound. Gently place your valve into the engine. Use the Lapping stick by pushing the suction cup into the top of the valve and rotate it back and forth in between your hands. After about 10 seconds remove the valve and wipe the lapping compound off of both the valve and the valve seat. Inspect and make sure the contact area is uniform and about in the middle of the valve face. Repeat this process with the other valve and seat.
By Babette Benjamine. Electrical Wiring. Published at Saturday, July 29th 2017, 15:58:18 PM. 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 Babette Benjamine. Electrical Wiring. Published at Friday, July 21st 2017, 12:46:45 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.
By Linda Cerise. Electrical Wiring. Published at Thursday, July 13th 2017, 10:30:29 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 Charline Rodrigue. Engine Wiring. Published at Saturday, October 30th 0201, 16:25:52 PM. Your ignition switch is a rotary switch that when turned to one of its 3 positions connects and disconnects certain contact terminals located on its backside. In the “start” position, it connects the Battery, Ignition, Rectifier, Accessory, and Start Terminals.
D-42 - Engine Wiring Diagram Specialist
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