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Outside Line/High Voltage

 
Receptacles in Wall Spaces, Insulating Bushings an
by
George W. Flach
| August 2003
| under
  • Codes & Standards

CODE CITATIONS Article 210 Branch Circuits Article 220 Branch Circuits, Feeder and Service Calculations Article 250 Grounding Article 320 Armored Cable Article 410 Luminaires (Lighting Fixtures), Lampholders and Lamps Article 430 Motors, Motor Circuits and Controllers Volume 1 of the Fire Resistance

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Supplemental or Supplementary?
by
Mark C. Ode
| August 2003
| under
  • Your Business

Supplemental and supplementary grounding electrodes are very similar in name but vastly different in their permitted uses. Understanding the differences in these two electrodes can be critical in providing a safe, Code-compliant installation.

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Manufactured Wiring Systems, Receptacle Locations and More
by
George W. Flach
| July 2003
| under
  • Systems

Article 210 Branch Circuits Article 215 Feeders Article 240 Overcurrent Protection Article 300 Wiring Methods Article 320 Armored Cable Article 352 Rigid Nonmetallic Conduit Article 404 Switches Article 604 Manufactured Wiring Systems Article 680 Swimming Pools, Fountains and Similar Installations A

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Conductors Connected in Parallel
July 2003
| under
  • Systems

Parallel conductors are often installed where large ampacity feeders or services are used. Total understanding of the paralleling requirements permitted in the National Electrical Code is necessary before attempting to design a large electrical system or install these conductors.

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New GFCI Technology Issues
by
Ed Corcoran
| July 2003
| under
  • Codes & Standards

The new type of GFCI employing the latest technology comes with a caveat that must be brought to our attention. Do not get the impression that if this type of receptacle is wired incorrectly that a person cannot be killed or injured.

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PVC Conduit Underground, Disconnect for Residentia
by
George W. Flach
| June 2003
| under
  • Systems

CODE CITATIONS Article 210 Branch Circuits Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 352 Rigid Nonmetallic Conduit: Type RNC Article 422 Appliances Article 430 Motors, Motor Circuits, and Controllers Article 514 Motor Fuel Dispensing Facilities Article

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Article 210--Branch Circuits: Required Lighting Outlets
by
Charles R. Miller
| May 2003
| under
  • Your Business

210.70 Lighting Outlets Required Article 210 specifies provisions for all branch circuits except for branch circuits supplying only motor loads. Article 430 contains motor load requirements. Provisions stipulating the placement of receptacle outlets are covered in 210.52 through 210.63.

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Storage Tank Water Heaters, Grounding Electrode Conductor Connections and More
by
George W. Flach
| May 2003
| under
  • Your Business

CODE CITATIONS Article 210 Branch Circuits Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 334 Nonmetallic Sheathed Cable: Types NM, NMC, and NMS Article 422 Appliances The General Information for Electrical Equipment Directory published by Underwriters Labo

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Branch Circuits--Required Receptacle Outlets, Part XII
by
Charles R. Miller
| April 2003
| under
  • Your Business

210.63 Heating, Air-Conditioning and Refrigeration Equipment Outlet Article 210 specifies provisions for all branch circuits except for branch circuits supplying only motor loads, which are covered in Article 430.

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The Question of Bonding
by
Eric David
| April 2003
| under
  • Your Business

The last line of the estimate is the most complex Picture this: The estimate is complete, including all direct and indirect costs, and overhead and net profit have been calculated as well. Any applicable additional taxes have been added to the bid.

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Grounding-Electrode Conductor Taps, Design B Energy-Efficient Motors and More
by
George W. Flach
| April 2003
| under
  • Your Business

CODE CITATIONS Article 230            Services Article 250            Grounding Article 404            Switches Article 408             Switchboards and Panelboards Article 430            Motors, Motor Circuits and Controllers Article 645            Information Technology Equipment

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Supplying Emergency Lighting, Swimming Pool Pump Motors and More
by
George W. Flach
| March 2003
| under
  • Codes & Standards

CODE CITATIONS Article 110 Requirements for Electrical Installations

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Branch Circuits--Required Receptacle Outlets, Part XI
by
Charles R. Miller
| March 2003
| under
  • Codes & Standards

210.62 Show Windows Requirements specifying the placement of receptacle outlets are covered in 210.52 through 210.63. The majority of these provisions pertain to dwelling units.

READ MORE
 
Aluminum Wire Terminations, Oversize Distribution Panels and More
by
George W. Flach
| February 2003
| under
  • Systems

CODE CITATIONS Article 110 Requirements for Electrical Installations Article 215 Feeders Article 220 Branch Circuit, Feeder and Service Calculations Article 250 Grounding Article 400 Flexible Cords and Cables Article 404 Switches Article 430 Motors, Motor Circuits and Controllers Aluminum wire termi

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Article 210 - Branch Circuits: Required Receptacle Outlets, Part X
by
Charles R. Miller
| February 2003
| under
  • Systems

210.52(H) Hallways Article 210 covers branch circuits except for those supplying only motor loads. Motor-load requirements are covered in Article 430. Receptacle-placement provisions are stipulated in 210.52(A) through (H).

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Bonding the Hot-Water Piping System
February 2003
| under
  • Residential

A simple change in construction and plumbing methods over a period of years may have resulted in many water-piping systems being inadequately bonded to the electrical system.

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Code Question
by
George W. Flach
| January 2003
| under
  • Systems

Question: I know you have addressed the practice of using 15 amp rated conductors for switch legs in residential 20 amp lighting circuits. I still have electricians saying it meets code. Will you try again? Thanks, Don Stephens Answer: Thanks for your comment Don.

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Article 210 - Branch Circuits
by
Charles R. Miller
| January 2003
| under
  • Your Business

* For reference figures, please refer to ELECTRICAL CONTRACTOR magazine. 210.52(D) Bathrooms Requirements pertaining to receptacle placement inside and outside dwellings are covered in 210.52(A) through (H).

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Underground Wiring To A Post Lighting, GFCIs in Commercial Kitchens and More
by
George W. Flach
| January 2003
| under
  • Your Business

CODE CITATIONS Article 110 Requirement for Electrical Installations Article 215 Feeders Article 220 Branch-Circuits, Feeders, and Service Calculations Article 230 Services Article 240 Overcurrent Protection Article 250 Grounding Article 300 Wiring Methods Article 310 Conductors for General Wiring Ar

READ MORE
 
Generators and GFCI, Pool Wiring, Inspection Questions and More
by
George W. Flach
| November 2002
| under
  • Systems

CODE CITATIONS Article 225 Feeders Article 230 Services Article 250 Grounding Article 408 Switchboards and Panelboards Article 445 Generators Article 680 Swimming Pools, Fountains and Similar Installation Systems NFPA 20 1999 Standard for the Installation of Stationary Pumps for Fire Protection Grou

READ MORE

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