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Can an electrician use sheet metal screws to secue an equipment grounding conductor to a box?
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An electrician used 27 insulated screws from a box of 3-dozen screws What part of a dozen was left?
3/4's
What is a grounded conductor used for and what color is it required to be by NFPA 70 the national electric code?
A grounding conductor is a means for providing safety for users of electrical devices that may have experienced an internal failure that causes an electrical short to metallic surfaces. In theory, such a short to a GROUNDED surface would quickly result in overcurrent or ground-fault interruption of the circuit, resulting in an dead but safe circuit. NEVER "reset" a GFCI while holding the attached device or without discovering what caused it to trip. Were it not for a grounding conductor, the user could become the "grounding conductor" by accident, causing electrocution. Grounding conductors maybe bare (copper) wires or have green insulation, or green with a yellow stripe (also used for bonding) or other green markings (green screws, green clips, green wire nuts, etc). Grounded appliance plugs were not required in the NEC until the 1960s.
What simple machine is used in an airplane?
There are screws for the propellers, and levers to control the landing equipment and flaps
How do you ground a computer?
Grounding an electrical or electronics device commonly refers connecting it's power inlet ground pin to the ground connection of the power outlet. The power outlet ground connects to the ground connection provided by the electricity utility company or the building's common ground connection. The grounding essentially provides a zero volt reference. Many systems which have a metal chassis provide specific grounding points with screws/nuts to connect grounding wire. To ground chassis of a computer one need to connect ground wire to the metal case.
What are ball screws bearing typically used for?
Ball screws are used a lot in aircrafts and missiles. They are also used in machining and assembly equipment and robots. They are also used in electronics like in the disk reading process.
Is it safe to glue or tape an electrical socket in place?
No, the receptacle needs the screws in place to complete the bond between the metal component of the receptacle to the metal component in the receptacle's junction box. This bond is entirely separate from the grounding of the receptacle.
Where should the grounding electrode conductor and the grounded circuit conductor of the wiring system be joined?
Answer for USA, Canada and countries running a 60 Hertz supply service.The grounding electrode conductor is brought into the main disconnect section of the distribution panel and a connection is made to the neutral block. The terminations in the panel at this point are two incoming "hots" to the main breaker and a neutral wire to the neutral terminal block. In the neutral termination block there is a ground screw that screws through to the distribution panels metal enclosure, there by making the metal enclosure the same potential as the ground plate or rods and the neutral wire that comes in from the street. The grounded circuit conductors of the wiring system are terminated on a separate ground buss that is located in the circuit breaker section of the panel. This buss is bolted directly to the rear of the distribution panel's metal enclosure in the circuit breaker section of the distribution panel. This ground buss is at the same potential as the ground electrode conductor above because of the grounding screw that connects the neutral block to the metal enclosure. Code requires when wiring sub panels within the same building that the neutral block screw be taken out of the circuit and a separate ground wire be run directly from the main distribution panel. This is to prevent any short circuit currents from the sub panel traveling back on the sub panel feeder's neutral wire.
Can I use a Doc Plate with power equipment?
Yes, you can use a dock plate with power equipment. Just be sure you are taking proper safety precautions. Yes. The DOC plate during surgery has drill guides for this purpose. They are surgical screws and plates meant for use with the power equipment required to screw it in.
How can one fix wall units to the wall?
One can fix wall units to the wall by using the screws, bolts and other equipment provided with the unit when it was purchased. There will be directions with it as well.
What products are sold at Clarcorp Industrial Sales?
This company sells industrial parts and supplies, such as fasteners, nuts, bolts, screws, safety equipment, etc. They are located in Waukesha, WI.
Is ground wire required when installing wiremold 500 series?
Yes, because the wire-mold is just a slip together fitting, a positive ground medium can not be obtained. There are ground screw at all fitting junction boxes. Terminate the ground wire on these screws to make the grounding continuous.
What do you do when the ground wire from the wall is too short to reach the grounding screw on the new fixture plate?
Splice a new green wire to extend it, using the same size gauge of wire. Do not use wire nuts, use a proper electrical connector with grub-screws which can be securely tightened-up. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
