Article 110 - Requirements for Electrical Installations

1 Article 110 - Requirements for Electrical (A) and (B) - Available Fault Current (New)Code Language. (A) Field Marking.(B) equipment in other than dwelling units shall be legiblymarked in the field with the maximum available fault current. The field marking(s)shall include the date the fault current calculation was performed and be ofsufficient durability to withstand the environment modifications to the electricalinstallation occur that affect the maximum available faultcurrent at the service, the maximum available fault currentshall be verified or recalculated as necessary to ensure theservice equipment ratings are sufficient for the maximumavailable fault current at the line terminals of theequipment. The required field marking(s) in (A) shallbe adjusted to reflect the new level of maximum availablefault : The field marking Requirements in (A) and (B) shall notbe required in industrial Installations where conditions of maintenance andsupervision ensure that only qualified persons service the of Change:This is intended to help Code enforcement authorities in determining compliancewith the provisions of Sections - Interrupting Rating, and - Circuit Impedance and FaultCurrent33,092 AmperesDate Calculated03/24/2011 Available FaultCurrent33,092 AmperesDate Calculated03/24 (C) - Use of Insulation of a White or GrayColor or with Three Continuous White Stripes (Revised)Code Language.

2 (C) Circuits of 50 Volts or use of insulation that is white or gray or that hasthree continuous white stripes for other than a grounded conductor for circuits of 50 volts or more shall bepermitted only as in (1) and (2). through (3).ON(1) If part of a cable assembly that has the insulationpermanently reidentified to indicate its use as an ungroundedconductor by marking tape, painting, or other effective meansat its termination and at each location where the conductor isvisible and accessible. Identification shall encircle theinsulation and shall be a color other than white, gray, or on using the re-identifiedconductor only for supply tothe used for single-pole, 3-way or 4-way switch loops, thereidentified conductor with white or gray insulation or threecontinuous white stripes shall be used only for the supply tothe switch, but not as a return conductor from the switch to of Change:Re-identified conductor canonly be used for the supplyto the switchArticle 200 - Use and Identification of Grounded - Ground-Fault Circuit-InterrupterProtection for Personnel (New)Code Language:Proposers substantiation:Ground-fault circuit-interruption for personnel shall beprovided as required in (A) through (C).

3 The ground-fault circuit-interrupter shall be installed in a readily accessible the case that there may be receptacles ingarages and similar areas that may not be readily accessible and because it isrecommended that GFCIs be tested monthly, we feel that these devices maynever be tested and reset because of their location. We realize homeownersprobably do not have a regular program for testing their GFCIs, but they maycheck them not in a readily accessible location, will most likely never be testedbecause of the extra effort to access their location. We feel that the location ofthe test / reset function should be in a location that is readily accessible to theoccupant of the dwelling unit. Note: The definition of readily accessible is: Capable of being reached quicklyfor operation, renewal, or inspections without requiring those to whom readyaccess is requisite to climb over or remove obstacles or to resort to portableladders, and so must bereadily (A)(7) - Ground-Fault Circuit-Interrupter Protectionfor Personnel - Sinks (Revised)where receptacles arelocated within 6 feet ( m) of the outside edgeof the make the text consistent with text for otherthan dwelling units (Section 210.)

4 (B)(5)).Code Language:Proposer s substantiation:Sinks - located in areasother than kitchens Laundry, utility, wet barand similar sinks -SDryerWasherLaundry CircuitLaundrySinkGFCIR eceptacle outlets within6 feet ( m) of the outsideedge of any sink, otherthan kitchens, must beGFCI protectedArticle 210 - Branch (B)(6)Indoor Wet Locations (New)- Ground-Fault Circuit-Interrupter Protectionfor Personnel -Code Language:Proposer sSubstantiation:(6) Indoor wet locations such ascar washes, food processing areas of facilities thatmanufacture food products, and other indoor wetlocations have the same risks to users of portableappliances as outdoor WashWhen installed in indoor wet locations, 125-volt, single-phase15- and 20-ampere receptacles must be:(1) ground-fault circuit-interrupter protected - (B)(6),(2) listed weather-resistant - (B)(1), and(3) installed in a weather-proofcover - (B)(1)(in-use) (B)(7)(New)- Ground-Fault Circuit-Interrupter Protectionfor Personnel - Locker RoomsCode Language:Proposer sSubstantiation:Locker rooms withassociated showering facilitiesIthinkthataGFCI requirement is in order for locker roomswith adjacent showering facilities.

5 Theconditions that would warrant GFCI protectionof receptacle outlets include, persons who areexiting the shower area walking in their barefeet, carrying wet clothes, and towels. Theyare entering a locker room which isconstructed of tile flooring, which may be wetfrom other users of the showering facility, itwould have a floor drain that serves to drainthe wet 210 - Branch (B)(8)(New)- Ground-Fault Circuit-Interrupter Protectionfor Personnel - GaragesCode Language:Garages, service bays, and similar areas where Electrical diagnostic equipment, Electrical hand tools, or portable lighting equipment are to be sSubstantiation:Incommercialandindustria lbuildings,wefrequentlyseean area that isused for a wide variety of tasks, including, to perform routine servicing of the companies vehicles.

6 Duringthese maintenance procedures, it would not be uncommon for liquids to be spilled onto the floor (usuallyconcrete). Art. 511 is typically not invoked, because, during plan review, or even inspection, it wouldsimply appear that this is an area with an overhead door to allow vehicles to drive into, or out of, thebuilding, for whatever purpose. Furthermore, Art. 511 does not apply to a strictly diesel facility, since thescope of Art. 511 uses the words VOLATILE flammable liquids and diesel fuel is not a volatile , the same hazards exist with diagnostic equipment, Electrical hand tools, or portable lightingequipment, the potential for spilled fluids, and multiple paths to ground. With this change, you wouldeliminate a loop hole that has, todate, exempted quite a fewareas fromGFCI (A) - Arc-Fault Circuit-Interrupter ProtectionDwelling Units, Exceptions No.

7 1 & 2 - (Revised)Code Language:Intent of Change:All 120-volt, single phase, 15- and 20-ampere branchcircuits supplying outlets installed in dwelling unit family rooms, dining rooms,living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms,closets, hallways, or similar rooms or areas shall be protected by a listed arc-faultcircuit interrupter, combination-type, installed to provide protection of the new exceptions to permit these wiring methodsbetween overcurrent device and first outlet where outlet branch-circuit typeAFCI device is installed(A)Exception No. 1: If RMC, IMC, EMT, Type MC, or steel armored Type AC cablesmeeting the Requirements of and metal outlet and junction boxes areinstalled for the portion of the branch circuit between the branch-circuitovercurrent device and the first outlet, it shall be permitted to install an outletbranch-circuit type AFCI at the first outlet to provide protection for the remainingportion of the branch No.

8 2: Where a listed metal or nonmetallic conduit or tubing is encasedin not less than 50 mm (2 in.) of concrete for the portion of the branch circuitbetween the branch-circuit overcurrent device and the first outlet, it shall bepermitted to install an outlet branch-circuit type AFCI at the first outlet to provideprotection for the remaining portion of the branch 210 - Branch - Raceways on the Exterior of Buildings or Other Structures (Revised)Raceways on exteriors ofbuildings or other structures shall be arranged todrain and shall Language:raintight suitable for use in wetlocationsProposer sSubstantiation:Tocorrelatewiththe following Panel NEC cycle:(1) Section (A) requires that .. fittingsinstalled in wet locations shall be listed for use inwet locations, not raintight ,(2) The definition of raintight in Article 100contains unenforceable language.

9 Will notresult in entrance of water under specified testconditions verifiable only for listed raceways,and(3) Raceways suitable for use in wet locations arelisted for use in wet locations, not raintight .Raceways installed on theexteriors of buildings orother structures mustbe suitable for use in wetlocations, not (B) - Arc-Fault Circuit-Interrupter Protection Dwelling Units,Branch Circuit Extensions or Modifications - (New)Code Language:Intent of Change:To introduce and promote the installation of Arc-Fault Circuit-Interrupting receptacles (listed outlet branch circuitAFCI).(B) Branch Circuit Extensions or Modifications -Dwelling any of the areas specified in (A), wherebranch-circuit wiring is modified, replaced, or extended, the branchcircuit shall be protected byone ofthe following:(1) A listed combination-type AFCI located at the origin of the branchcircuit(2)Alisted outlet branch-circuit typeAFCI located at the first receptacleoutlet of the existing branch 225 - Outside Branch Circuits and - Raceway Seal (New)Code Language:Where a raceway enters a building or structure from an underground distributionsystem, it shall be sealed in accordance with (G).

10 Spare or unused raceways shall also be shall be identified for use with the cable insulation, shield, or other sSubstantiation:Feeders entering buildings or other structures are no different thanservices. The Requirements should be the same. See NEC MSBONOFFJ unctionBoxUnderground distribution systemraceways must be sealed inaccordance with (G) (A) - Grouping of Disconnects, Exception (Revised)The two to six disconnects as permitted shall be grouped. Each disconnect shall be marked toindicate the load Language:Exception: One of the two to six service disconnecting meanspermitted in , where used only for a water pump alsointended to provide fire protection, shall be permitted to belocated remote from the other disconnecting means. If remotelyinstalled in accordance with this exception, a plaque shall beposted at the location of the remaining grouped disconnectsdenoting its UtilityTransformerService Disconnect(Pump Panel)for Well sSubstantiation:Itisimportant to know the location of thewater pump service disconnectingmeans.