By Augustine Yvonne. Electrical Wiring. Publised at Wednesday, August 30th 2017, 02:31:22 AM. When electricity was originally used for practical purposes, it was used for communication in the form of the electric telegraph and the telephone. Petroleum and paraffin lamps were still lighting homes until the late 1800s, when Thomas Edison developed the light bulb.
By Blandine Honorine. Electrical Wiring. Published at Sunday, January 21st 2018, 01:42:33 AM. 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 - can present special fire and shock hazards.
By Babette Benjamine. Engine Wiring. Published at Sunday, January 21st 2018, 01:03:18 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 Charline Rodrigue. Electrical Wiring. Published at Saturday, January 20th 2018, 23:55:13 PM. Soldered connections should be made only to terminals suitable for that purpose. Transformers may be fitted with turret tags suitable for soldering and printed circuit board assemblies may have solder pins.
By Claudie Ulysse. Engine Wiring. Published at Saturday, January 20th 2018, 22:59:05 PM. Valve lapping compound is an abrasive paste that slightly wears both the valve face and seat together. I want to emphasize that the wear is very slight, and cannot replace an actual valve seat cutter. I use valve lapping compound to show me the contact points from the valve seat onto the valve face.
By Charline Rodrigue. Electrical Wiring. Published at Saturday, January 20th 2018, 19:16:24 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 Babette Benjamine. Electrical Wiring. Published at Saturday, January 20th 2018, 18:29:37 PM. You must totally enclose conductors and their connection external to the control panel enclosure in suitable raceways or enclosures. Unless used for flexible connections involving small or infrequent movements, or connections to normally stationary motors, limit switches and other externally mounted devices, fittings used with raceways or multiconductor cables must be liquidtight.
By Blandine Honorine. Electrical Wiring. Published at Saturday, January 20th 2018, 14:41:20 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.
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