Electrical Tech Note — 111
Electrical Tech Note — 111Biosystems & Agricultural Engineering DepartmentM ichigan State UniversityElectrical Code Changes in Michigan1(Based on Part 8, P.A. 230, the 2005 NEC and the 2003 MRC)This discussion of electrical code changes is based upon the Part 8 Rules of Michigan Public Act 230that went into effect Novem ber 23, 2007 which adopts the 2005 National Electrical Code with som em odifications. A discussion of the m odifications is covered in Tech Note 107. The Michigan Electrical Code(MEC) applies to electrical installations in facilities other than one- and two-fam ily dwellings. For one- andtwo-fam ily dwellings the Michigan Residential Code (MRC) applies which at the tim e this docum ent wasprepared was based upon the 2003 edition of the International Residential Code (2003 IRC). The 2003 IRCis based upon the 2002 NEC and, therefore, differences exist between the present Michigan ResidentialCode and the Michigan Electrical Code. One m ajor difference is the installation of arc-fault circuit-interruptersin one- and two-fam ily dwellings and where ground-fault circuit-interrupter protected receptacles are required.This Tech Note covers the m ajority of the electrical code changes that will result in the way wiring is tobe installed in Michigan. This docum ent is not intended as an official interpretation of the particular sectiondiscussed. Before m aking a decision with respect to any installation of electrical wiring or equipm ent thereader is instructed to study the specific reference in the 2005 National Electrical Code .Here are som e overall changes that occurred in the 2005 NEC. The rules for tem porary installationswere once again m oved, this tim e to Article 590. In the previous edition of the Code it was Article 527, andbefore that it was Article 305. There was som e reorganization and a nearly com plete renum bering of Articles800, 810, 820,. and 830. There are three new articles that are particularly im portant, Article 409 on industrialcontrol panels, Article 506 on Zone 20, 21, and 22 hazardous locations with dust and flyings, and Article 682dealing with electrical installations in natural and artificially m ade bodies of water. The com m on bonding gridfor a perm anent swim m ing pool is now called an equipotential bonding grid, and installation directions arem uch m ore specific. The walkway around the pool is now required to contain m etal to reduce chances ofstep voltages. Even though the 2008 NEC is not in effect in Michigan, the rules on swim m ing pool bondingare easier to understand in that edition. Article 220 was com pletely reorganized and renum bered, althoughthe actual changes are m inim al. Other significant changes are:!!!!!!!!grounding electrodes for servicesGFCI requirem entsnew term inology used with AFCIswiring on roofs exposed to the sun (see also 310.15(B)(2)(a) in the 2008 NEC)new industrial control panel article (see Art. 409)new zone system for com bustible dust and flyings (see Art. 506)swim m ing pool equipotential grid (see 680.26 in the 2008 NEC)new article on wiring at natural and artificial bodies of water (see Art. 682)In Article 100 there is a new definition of a system bonding jum per which is intended to apply to aseparately derived system . A system bonding jum per is a connection between a grounded circuitconductor and the equipm ent grounding conductor of a separately derived system . At a service this iscalled the m ain bonding jum per. The system bonding jum per is perm itted to be installed at the sourceof the separately derived system or at the first disconnecting m eans supplied by the system .Also in Article 100 a fine print note was added to the definition of qualified person that m akes reference toNFPA 70E-2004 for electrical safety training requirem ents.110.15: This section requires the phase conductor with the higher voltage to ground for a 4-wire delta,1Developed by Truman C. Surbrook, Ph.D., P.E., Master Electrician and Professor, and Jonathan R. Althouse, MasterElectrician and Instructor, Biosystems & Agricultural Engineering Department, Michigan State University, East Lansing, Mi 488241323. For a copy of this Tech Note and other papers, visit the Electrical Technology web site at http://www.egr.msu.edu/age/ET/.Copyright 2008, Biosystems & Agricultural Engineering Department, Michigan State University. All rights reserved.
Electrical Tech Note — 111Page 2240/120 volt 3-phase system to be m arked orange or identified by som e other effective m eans at everypoint where connections are m ade and the grounded circuit conductor is present. The change is thatonly the phase with the higher voltage to ground is perm itted to be labeled orange. Other conductors, ifidentified with a color m ust be identified with a color other than orange. This rule does not prohibit anorange m arking on any ungrounded conductor of a different electrical system .110.26(C)(2): Electrical equipm ent containing overcurrent, switching, or control devices and rated 1200am peres or m ore and with a width of m ore than 6 ft, an exit is required at each end of the working spaceunless equipm ent is arranged so that the exit route is unobstructed from all parts of the room . Theseexit doors are also required to open out with pressure release door latches or panic bars. The change inthis section is that the width requirem ent was deleted. It m akes no difference how wide the equipm ent,if it is rated 1200 am peres or m ore, an exit at each end of the room is required.Part V of Article 110: The entire Part IV of Article 314 was m oved to Article 110. This m aterial providesrequirem ents for m anholes and other electric enclosures intended for personnel entry. There wereessentially no changes m ade to Part V.200.6(B): A grounded conductor with other than white or green insulation and larger than size 6 AW G is nowperm itted to be re-identified using gray tape as well as white tape that com pletely “encircles” theconductor. In the past, only white tape was perm itted to re-identify a grounded conductor that did nothave white or gray insulation.200.6(D): If a prem ises is supplied by m ore than one wiring system , each with a grounded conductor, thegrounded conductors of each system are required to be identified in such a m anner they can be easilyrecognized when run in the sam e raceway, cable, box or other enclosure. One m ethod was to have acolored strip on a white insulated wire. Now it is perm itted to have a colored stripe on a gray insulatedwire. The other change is that the m eans of identifying the grounded conductors is required to beperm anently posted at each branch circuit panelboard. An exam ple m ay be where a 208/120 volt 4-wirewye system supplies receptacles and lighting, and a 480/277 volt 4-wire system supplies electricdischarge lighting. The neutral conductors if run in the sam e raceway or enclosure are required to beuniquely distinguishable from each other and the m eans of identification is now required to be posted ateach panelboard.200.7(C)(1): W hen cable is installed as a switch loop for lighting, the white or gray wire is required to be reidentified to indicate it is no longer a grounded conductor. The change is that this re-identification isrequired to be a color other than white, gray, or green, and that the identification shall “encircle” theconductor. In the past the identification was not required to com pletely encircle the conductor.210.4(B): This section deals with rules relative to wiring a m ulti-wire branch circuit. This paragraph in theprevious edition of the Code applied only to m ulti-wire branch circuits in dwellings. If the m ulti-wirebranch circuit supplied m ore than one device or equipm ent on the sam e yoke, such as two receptacles,it was required to be able to disconnect power to all conductors sim ultaneously. A typical m eans ofpower disconnection to a m ulti-wire branch circuit was a 2-pole circuit breaker or two single-pole circuitbreakers with handle ties. The change is that this section no longer applies just to dwellings. This ruleapplies to all m ulti-wire branch circuits in any building.210.6(D)(2): This section specifies which utilization equipm ent is perm itted to be supplied power at higherthan nom inal 277 volts to ground but not m ore than 600 volts line-to-line. Since lum inaires were notspecifically excluded from this section it was interpreted in som e areas that HID lum inaires wereconsidered utilization equipm ent and were perm itted to be installed inside and supplied from 480 voltdelta system s. This was apparently not the intent and now it is specifically stated that lum inaires arenot included in this rule that perm its utilization equipm ent to be supplied by circuits operating at m orethan 277 volts to ground but not m ore than 600 volts line-to-line.210.7(B): The previous edition of the Code required that when m ore than one receptacle on the sam e strapor yoke are supplied from different branch circuits, the overcurrent device supplying the circuits wasrequired to be of a type where all ungrounded conductors would be de-energized sim ultaneously. Thisrequired a m ulti-pole circuit breaker or single-pole circuit breakers with listed handle ties. The wordreceptacles was changed to devices. It is no longer required that there be only receptacles on the strapor yoke. Now this rule applies to devices such as a switch and receptacle on a single strap, or perhapstwo switches on the sam e strap.210.8(A)(7): All 125 volt, single-phase 15- and 20 am pere receptacles installed within 6 ft of the outside edgeof a dwelling laundry, utility, or wet bar sink are required to be ground-fault circuit-interrupter protected.The change is that this rule now applies to laundry and utility sinks in a dwelling.210.8(B)(2): The previous edition of the Code required ground-fault circuit-interrupter protection for 125 volt,single-phase, 15- and 20-am pere receptacles installed in non-dwelling kitchens. A definition of a kitchenwas not provided which created differences of interpretation as to where this rule would apply. Now it isCopyright 2008, Biosystems & Agricultural Engineering Department, Michigan State University. All rights reserved.
Electrical Tech Note — 111Page 3specified that the rule applies to com m ercial and institutional kitchens. There is now also a definition ofa kitchen that is an area with a sink, and perm anent facilities for food preparation and cooking. Acounter space in a room with a sink, coffee m aker, refrigerator, and space for a m icrowave oven wouldnot qualify as a kitchen since perm anent space for cooking is not provided. In the definition of adwelling, space for a portable m icrowave oven is not considered perm anent provisions for cooking.210.8(B)(4): All 125 volt, single-phase, 15- or 20-am pere receptacles located outdoors in spaces “accessibleto the public” for non-dwelling locations are required to be ground-fault circuit-interrupter protected.210.8(B)(5): A 125 volt, single-phase, 15- or 20-am pere receptacle installed outdoors as the requiredreceptacle within 25 ft of heating, air-conditioning, and refrigeration equipm ent is now required to beground-fault circuit-interrupter protected. This rule now applies to all buildings where according to theprevious edition of the Code GFCI protection was only required for outside rooftop receptacles installedto service this equipm ent.210.8(C): A 125 volt, single-phase, 15- or 20-am pere outlet for the supply of a boat hoist at a dwellinglocation shall be provided with ground-fault circuit-interrupter protection.210.12(B): Arc-fault circuit-interrupter protection in the case of a one- or two-fam ily dwelling in Michiganrem ains the sam e as in the past since these installations are covered under the Michigan ResidentialCode. All bedroom outlets supplied from 120-volt, 15- or 20-am pere circuits are required to beprotected by an arc-fault circuit-interrupter at the source of the circuit. There are two types of AFCIsavailable, but the 2003 MRC does not specify which type is required. If the 2006 MRC is adopted, thecom bination type AFCI will be required to be installed in one- and two-fam ily dwellings. In the case ofm ulti-fam ily dwellings, the rule in the 2005 NEC will apply and a com bination type AFCI is now requiredto be installed.210.12(B) Exception: This new exception perm its a receptacle-type (com bination-type) AFCI device to beinstalled adjacent to the circuit panelboard. The receptacle-type AFCI provides arc-fault protection forlam ps, equipm ent, and appliances plugged into the receptacle. The receptacle-type AFCI has feedthrough capability so the rem ainder of the circuit will also be arc-fault protected. This type of AFCI isdesigned to be m ore sensitive to arc-faults, which could result in nuisance tripping. The exceptionrequired the length of circuit wire from the circuit breaker in the panelboard to the AFCI device to be notm ore than 6 ft in length. The circuit between the panelboard and the AFCI device is also required to berun in m etal raceway or m etallic sheathed cable.210.18: This is a new section that requires guest room s and guest suites with perm anent provisions forcooking to m eet the sam e receptacle requirem ents as a dwelling, but also m ust m eet the branch circuitrequirem ents of a dwelling. Two 20-am pere, 125 volt sm all appliance branch circuits are required to beprovided that serve the counter space. The bathroom receptacles are required to be on a 20-am pere,125 volt circuit that includes no other outlets, unless there is only one bathroom in which case all outletsin the bathroom are perm itted to be on the 20-am pere circuit. Receptacle spacing shall be as requiredin 210.52.210.52(C)(1) Exception: This new exception now requires the wall space behind a sink or a counter-m ountedcooking unit to be considered in receptacle spacing requirem ents if the back edge of the sink or cookingunit is 12 in. or m ore out from the wall. There is a sim ilar requirem ent if the sink or cooking unit isinstalled in a corner of the kitchen counter. If the back edge of the sink or cooking unit is m ounted sothe distance to the corner is 18 in. or greater, then the wall space behind the sink or cooking unit is to beconsidered in the receptacle spacing requirem ents of 210.52(C)(1). If the space behind a sink orcooking unit are lim ited, then according to 210.52(C)(4) the wall spaces are not considered as usablewall space.210.52(C)(2): A new sentence was added to m ake it clear that when a counter-m ounted cooking unit or asink is located in an island kitchen counter, the ends of the counter are considered separated if thecooking unit or sink is m ounted such that less than 12 in. of counter rem ains at the location of the sinkor cooking unit. This would m ean that a receptacle m ust be installed to serve the counter space at eachend of the island if those counter spaces are at least 12 in. in both dim ensions.210.52(D) Exception: This is a new exception to the required placem ent of a receptacle on the wall orpartition adjacent to and within 3 ft of the bathroom sink. The exception perm its the receptacle to beinstalled on the face or side of the bathroom counter top and located not m ore than 12 in. below the topof the counter space and within 3 ft of the edge of the sink.210.52(E): A new second sentence was added that now requires a receptacle to be installed accessible atgrade level for each dwelling unit of a m ulti-fam ily dwelling that is at grade level and has an individualentrance from the dwelling unit to the outside.210.60: This section specifies receptacle placem ent in guest room s and guest suites of hotels, m otels, andsim ilar occupancies. The previous edition of the Code required receptacle placem ent to be the sam e asCopyright 2008, Biosystems & Agricultural Engineering Department, Michigan State University. All rights reserved.
Electrical Tech Note — 111Page 4for a dwelling if the guest room or guest suite m et the definition of a dwelling m ainly that perm anentprovisions were m ade for cooking. The definition of a dwelling also includes perm anent provisions foreating which m ay not be the case with a guest room or guest suite. A specific dining area m ay not beprovided. Now the requirem ent is sim ply that the guest room or guest suite is required to m eet all of theappropriate receptacle requirem ents of 210.52 if there are perm anent provisions for cooking.210.70(B): In guest room s and guest suites of hotels and m otels, every habitable room and bathroom is nowrequired to have a wall switch controlled lighting outlet. The term lighting outlet is interpreted asm eaning a lum inaire of som e type perm anently installed.215.2(A)(1): A new sentence was added to the last paragraph in this section dealing with the m inim umperm itted size of grounded feeder conductor (neutral). Feeder conductor size, including the groundedconductor, is required to be not less than the load to be served as calculated according to the rules inArticle 220. There are cases where the unbalanced load as calculated according to 220.61 onlyrequires a sm all size grounded conductor (usually the neutral) com pared to the size of the ungroundedconductors. There has never been a m inim um size grounded conductor requirem ent for feeders. Nowthe grounded circuit conductor m inim um size is to be not sm aller than the size of equipm ent groundingconductor required for the feeder as determ ined by Table 250.122.Example: A 200 am pere feeder has a calculated unbalanced load of only 30 am peres. Determ inethe m inim um size copper grounded circuit conductor perm itted for the feeder.Solution: Based upon the calculated unbalance load of 30 am peres, Table 310.16 would onlyrequire a size 10 AW G grounded conductor. Based upon Table 250.122, the actual m inim um sizecopper grounded conductor is 6 AW G.215.2(A)(2): This subsection from the previous edition of the Code was deleted and the rem ainder of thesection was renum bered. The portion of the section that was deleted required a m inim um feederconductor rating of 30 am peres when the feeder supplied m ultiple branch circuits.215.12(C): This is a new section that specifies the m ethod of identifying the grounded conductor, equipm entgrounding conductors, and ungrounded conductors of different electrical system s that serve the sam ebuilding or structure. The change is that the color coding m ethod or other identification m ethod todistinguish between the different electrical system s is now required to be perm anently posted at eachfeeder panelboard or other distribution equipm ent such as a disconnect switch.Article 220 was com pletely reorganized. A new Figure 220.1 was added to give an overview of whereinform ation on branch circuit calculations, and feeder calculations can be found. Nearly all of thesections have different num bers than in the previous edition of the Code. The general m ethod used tocalculate the load on a feeder or service conductors was Part II in the previous edition of the Code andis now Part III.220.14(K): This was footnote b to what was Table 220.3(A) and is now Table 220.12 which gives them inim um general illum ination load to be used for calculations for som e occupancies. Footnote b statedthat a m inim um of 1 VA per sq. ft was required to be included in office buildings for the receptacle load.This section m akes it clear that the m inim um load that is required to be used for receptacles in an officebuilding and now banks is 180 VA for each general use receptacle to be installed or 1 VA per sq. ftwhich ever is greater. This is not a change of intent, but now it is m ade clear in this section that thehigher value is to be used for calculations.220.61: This was 220.22 in the previous edition of the Code and explained how to calculate the m inim umrequired load on a neutral conductor. There are no changes in the section, but it now consists of threem ain subsections which m ake the rule easier to follow.Table 220.102: This was Table 220.40 in the previous edition of the Code and the section deals with them ethod of calculating the load for a farm building. In Table 220.40 of the previous edition of the Codethe term load “without diversity” was used in the table to indicate those loads in a farm building thatnorm ally operate at the sam e tim e when the building is in use. Now Table 220.102 uses the expression“loads expected to operate sim ultaneously.” Other than a change in term inology to help im proveunderstanding, there is no change in the m ethod used to calculate the load for a farm building.230.44: Cable trays are perm itted to support service entrance conductors, and now there is a rule that onlyperm its the cable tray to contain service conductors. There is an exception that perm its other thanservice conductors to be installed in the cable tray provided there is a solid fixed barrier of m aterialcom patible with the cable tray m aterial between the service conductors and other conductors in thesam e cable tray.230.71(A): A service is perm itted to consist of up to six separate disconnecting m eans either located in thesam e enclosure or located in a group. A disconnecting m eans for a transient voltage surge suppressor(TVSS) is now perm itted to be installed in addition to the six service disconnects. There is now a newCopyright 2008, Biosystems & Agricultural Engineering Department, Michigan State University. All rights reserved.
Electrical Tech Note — 111Page 5term to replace TVSS and that is surge protective device (SPD) which is covered in Article 285. Thereare several types of SPDs which are explained in the 2008 NEC.230.82(3): A m eter disconnect switch is perm itted to be installed on the supply side of the servicedisconnecting m eans for a service operating at not m ore than 600 volts. Now there is an additionalrequirem ent that the m eter disconnect switch have a short-circuit rating not less than the short-circuitcurrent available at the service.230.82(8): A transient voltage surge suppressor (TVSS) is now perm itted to be tapped ahead of the servicedisconnecting m eans provided it is installed on the load side of separate service equipm ent. W hat thism eans is that a TVSS is perm itted to be tapped to the service conductors, but it is required to have adisconnecting m eans, overcurrent protection, a m ain bonding jum per, and a grounding electrodeconductor. The disconnecting m eans is also required to be suitable for use as service equipm ent.240.20(B): This section was revised to m ake it clear that a circuit breaker is required to open all ungroundedconductors of a circuit both m anually and autom atically. For exam ple it is not perm itted to use twosingle-pole circuit breakers with a handle tie for a 240 volt circuit. The change is the addition of the word“autom atically”. This m eans m ulti-pole circuit breakers are required to be com m on-trip. Com m on-tripm eans when one pole opens, the other poles will also open. This section lists three cases whereindividual circuit breakers with or without handle ties are perm itted to be used where all ungroundedpoles of the circuit are not required to open sim ultaneously. An exam ple is a m ulti-wire branch circuitwith two or three ungrounded conductors and a neutral. The handle ties will act as a disconnectingm eans to open all ungrounded poles sim ultaneously, but will not necessarily insure that autom atic tripcaused by an overcurrent condition will open all ungrounded poles. Another change in this section isthat identified handle ties are required not sim ply approved. The handle tie m ust be m anufactured forthe purpose and identified as acting as a handle tie for the circuit breaker.240.21(C)(2)(1)c.: This is a new requirem ent for transform ers that sets a m inim um size for secondary tapconductors that are not m ore than 10 ft in length. The secondary tap conductors are not perm itted tohave an am pacity less than 10% of the transform er prim ary overcurrent device rating tim es the prim aryvoltage over the secondary voltage.Prim ary Overcurrent Device RatingPrim ary VoltageMinim um Tap W ire Am pacity ------------------------------------------------- ---------------------------10Secondary VoltageExample: A 3-phase, 112½ kVA transform er is 480 volts with wires protected by 150 am perefuses. There are several taps from the 208Y/120 volt secondary each of which is not over 10 ft inlength. One tap ends at a 30 am pere circuit breaker to supply a 5 horsepower, 3-phase, 208 voltm otor. Determ ine the m inim um size copper tap conductor between the transform er and the 30am pere circuit breaker if the insulation and term inations are rated 75EC.Answ er: The tap conductor is required to have an am pacity not less than the rating of theovercurrent device at the end of the tap which is 30 am peres. From Table 310.16 using the 75ECcolum n, the m inim um is size 10 AW G. Next check the m inim um tap conductor am pacity perm ittedfor this transform er regardless of the load to be served and find 35 am peres. Checking Table310.16 shows that a size 10 AW G is just large enough to also m eet this requirem ent.150 A480 VMinim um Tap W ire Am pacity ---------- ------------ 35 A10208 V240.24(A): A new requirem ent was added that establishes a m axim um height for the center of the operatinghandle of a switch or circuit breaker. The m axim um height is 6 ft 7 in.250.21: Ungrounded ac system s operating at 120 volts or m ore are now required to have ground detection.An ungrounded electrical system can be created by a separately derived system within the prem ises andground detectors m ay be required.250.28: The term system bonding jum per was added to this section. The m ain bonding jum per isunderstood to be at the service to the building or structure. W hen a separately derived system iscreated such as at a transform er, a bonding jum per is required between the grounded conductor andthe equipm ent grounding term inal or bar. At a separately derived system , this bonding connection iscalled the system bonding jum per. Since this m ain bonding jum per was considered located at theservice, there was no clear rule for sizing the system bonding jum per. Now the rules for sizing the m ainbonding jum per and the system bonding jum per are stated in this section.Copyright 2008, Biosystems & Agricultural Engineering Department, Michigan State University. All rights reserved.
Electrical Tech Note — 111Page 6250.30(A)(4)(a): It is perm itted to ground m ultiple separately derived system s to a com m on groundingelectrode conductor run throughout a building or structure. Each separately derived system is thenbonded to the com m on grounding electrode conductor. There is now one m inim um size required for acom m on grounding electrode conductor used for two or m ore separately derived system s. Them inim um size is 3/0 AW G copper or 250 kcm il alum inum . In m any situations this is an increase in sizeas com pared with the rule in the previous edition of the Code. For installations with low kVA ratings ofseparately derived system s it is m ore practical to ground each separately derived system rather than runa com m on grounding electrode conductor. The following exam ples will illustrate how such a com m ongrounding electrode system is sized.Example: Four single-phase transform ers rated 3 kVA are installed in one area of a building andconnected to a 480 volt supply to provide a 20 am pere, 120 volt circuit at each location. If all fourtransform ers are grounded to a com m on copper grounding electrode conductor, determ ine them inim um size grounding electrode conductor perm itted.Solution: The com m on grounding electrode conductor is required to be not sm aller than size 3/0AW G copper according to 250.30(A)(4)(a). The grounding electrode conductor from eachtransform er to the com m on grounding electrode conductor is required in this case to be not sm allerthan size 8 AW G copper according to 250.30(A)(3) using Table 250.66 and knowing thetransform er output conductors are size 12 AW G copper. The previous edition of the Code wouldhave perm itted a size 8 AW G copper com m on grounding electrode conductor for thesetransform ers.250.50: This section specifies the grounding electrode required for a service to a building or structure. Theprevious edition of the Code required that all of the electrodes described in 250.50(A) that were“available” were required to be bonded together to form a grounding electrode system . The words “ifavailable” were deleted and now all of the types of grounding electrodes described in 250.50(A) arerequired to be used. The real issue is the concrete-encased electrode such as reinforcing steel in afoundation. If steel reinforcing is installed, it is now required to be used as a grounding electrode. Thism eans the steel reinforcing in new construction, if installed, is required to be m ade available so it can beused as a grounding electrode.250.50 Exception: This new exception only applies to existing buildings and structures. If it is not possible toget at reinforcing steel without penetrating the concrete, then it is not required to use the reinforcingsteel as a grounding electrode.250.52(A)(2): This subsection now specifies when the m etal fram e of a building is considered to be agrounding electrode. The previous edition of the Code required the building m etal fram e to be used as agrounding electrode when effectively grounded. Now the specific m ethods of effectively grounding them etal building fram e are specified. At least 10 ft of the m etal extends into the earth or is encased inconcrete that is in contact with the earth. The m etal building fram e can be grounded by bonding to aground rod, or pipe, or a m etal plate. Other m ethods of grounding a m etal building fram e can also beused if approved. Bonding to a m etal underground water
210.8(C): A 125 volt, single-phase, 15- or 20-ampere outlet for the supply of a boat hoist at a dwelling location shall be provided with ground-fault circuit-interrupter protection. 210.12(B): Arc-fault circuit-interrupter protection
2 34.7215 -111.9907 Highway 89 Bridge 1 3 34.7133 -111.9891 Scouting Location 1 4 34.7101 -111.9869 Irrigation return 1 5 34.7082 -111.9822 Rock bar 1 6 34.7068 -111.9549 Great Verde Lake Bed 1 & 2 7 34.6920 -111.9658 Scouting Location 2 8 34.6930 -111.9622 Skidmore RAP 2 9 34.6903 -111.9658 Prairie Lane RAP 2
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1 Brandon, Sy Trio for Brass 111.00 PA 2 Pachelbel, Johann Fugue 111.00 SPR 3 Pachelbel, Johann Fugue "Magnificat" 111.00 SPR 4 Robb, Rodger 4 Contrary Movements 111.00 Scm 5 Running, Arne Aria & Allegro 111.00 SP 6 Uber. David Trio 111.00 SthMC-2 7 Schmi
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Electrical Infrastructure includes an electrical installation, electrical equipment, electrical line or associated equipment for an electrical line. 1.9 Electrical installation As per the Electrical Safety Act 2002 (s15) (a) An electrical installation is a group of items of electrical equipment that—
NP60 111 Full-04 16.7 0.6574200 23 0.600 88 111 Full-06 20.9 0.8234200 25 0.670 69 111 Full-08 24.2 0.9534200 27 0.830 75 111 Full-12 31.8 1.2524200 34 1.100 70 111 Full-16 40.6 1.5984200 44 1.500 80 IT01 00 NOTE: Die and dial settings are app
