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- (a) INDIVIDUAL CIRCUITS - 210.19(A)(1)(a), 210.1 AND 210.20(A)
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课时1：OVERHEATING AND INDUCTIVE HEATING - 408.3(B)
课时2：USED AS SERVICE EQUIPMENT - 408.3(C)
课时3：PHASE ARRANGEMENT - 408.3(E) AND (F)
课时4：PHASE ARRANGEMENT - 408.3(E) AND (F)
课时5：5
课时6：HIGH LEG IDENTIFICATION - 408.3(F)(1)
课时7：MINIMUM WIRE-BENDING SPACE - 408.3(G)
课时8：MINIMUM WIRE-BENDING SPACE - 408.3(G)
课时9：CLEARANCE FOR CONDUCTOR ENTERING BUS ENCLOSURES - 408.5
课时10：DEDICATED EQUIPMENT SPACE - 408.18(B) AND 110.26(E)(1)(a)
课时11：PANELBOARDS AND SWITCHBOARDS - ARTICLE 408, PART II
课时12：SWITCHBOARD CLEARANCES - 408.18(A) AND (B)
课时13：OVERCURRENT PROTECTION - 408.36
课时14：OVERCURRENT PROTECTION - 408.36
课时15：OVERCURRENT PROTECTION - 408.36
课时16：SPLIT-BUS PANELBOARD
课时17：SNAP SWITCHES RATED AT 30 AMPS OR LESS - 408.36(A)
课时18：SUPPLIED THROUGH A TRANSFORMER - 408.36(B)
课时19：GROUNDING OF PANELBOARDS - 408.40
课时20：GROUNDING OF PANELBOARDS - 408.40
课时21：ISOLATED EQUIPMENT GROUNDING CONDUCTOR - 408.40, Ex
课时22：(a) RUNNING CIRCUITS TO COMPENSATE FOR HARMONIC CURRENTS
课时23：(b) RUNNING CIRCUITS TO COMPENSATE FOR HARMONIC CURRENTS
课时24：AMBIENT TEMPERATURE - 310.14(A)(3), IN 1(1)
课时25：WHEN TO APPLY CORRECTION FACTORS - 310.14(A)(2), Ex
课时26：DISSIPATION INTO AMBIENT MEDIUM - 310.14(A)(3), IN 1(3)
课时27：MATCHING TEMPERATURE MARKINGS - 110.14(C)(1)(a) AND (C)(1)(b)
课时28：WHEN TO APPLY ADJUSTMENT FACTORS - 310.15(C)(1) TO TABLES 0 – 2000 VOLTS
课时29：EQUIPMENT GROUNDING CONDUCTORS - ARTICLE 100 AND 310.6(B)
课时30：OVERCURRENT - ARTICLE 100, 240.3, AND 240.4
课时31：WHEN IS A NEUTRAL CURRENT-CARRYING - 310.15(E)(3)
课时32：UNGROUNDED CONDUCTORS - 310.6(C)
课时33：UNGROUNDED CONDUCTORS - 310.6(C)
课时34：TERMINAL RATINGS - 110.14(C)(1)(a) AND (C)(1)(b)
课时35：LONG- AND SHORT-TIME RATINGS OF CONDUCTORS - 310.14(A)(3) AND TABLE 310.16
课时36：THREE OR MORE CURRENT-CARRYING CONDUCTORS - 310.15(C)(1) TO AMPACITY TABLES 0 – 2000 VOLTS
课时37：DERATING FOR AMBIENT TEMPERATURE CORRECTION FACTORS - TABLES 310.15(B)(1) AND (B)(2)
课时38：(a) APPLYING BOTH DERATING FACTORS TABLE 310.15(C)(1) AND TABLES 310.15(B)(1) AND (B)(2)
课时39：(b) APPLYING BOTH DERATING FACTORS TABLE 310.15(C)(1) AND TABLES 310.15(B)(1) AND (B)(2)
课时40：(c) APPLYING BOTH DERATING FACTORS TABLE 310.15(C)(1) AND TABLES 310.15(B)(1) AND (B)(2)
课时41：APPLYING 50 PERCENT LOAD DIVERSITY FACTOR - TABLE B.310.14(B)(2)(11)
课时42：BRANCH-CIRCUIT ELEMENTS - 422.10(A) AND (B), AND 422.11(A) THRU (G)
课时43：(a) INDIVIDUAL CIRCUITS - 210.19(A)(1)(a), 210.1 AND 210.20(A)
课时44：(b) INDIVIDUAL CIRCUITS - 210.19(A)(1)(a), 210.1 AND 210.20(A)
课时45：CONDUCTORS IN PARALLEL - 310.10(G)
课时46：CONDUCTOR CONSTRUCTIONS AND APPLICATIONS - 310.4
课时47：TYPICAL AMBIENT DESIGN TEMPERATURE - 1971 NEC
课时48：DETERMINING CONDUCTOR AMPACITIES IN CABLES - TABLES 311.60(C)(77) THRU 311.60(C)(86)
课时49：DETERMINING CONDUCTOR AMPACITIES IN DUCT BANKS - TABLES 311.60(C)(77) THRU 311.60(C)(86)
课时50：DERATING DUE TO OBSTRUCTIONS - 311.60(C)(2)(a) TO TABLES 311.60(C)(77) THRU 311.60(C)(86)
课时51：DERATING DUE TO OBSTRUCTIONS - 311.60(C)(2)(b) TO TABLES 311.60(C)(77) THRU 311.60(C)(86)
课时52：RACEWAYS AND CABLES EXPOSED TO SUNLIGHT ON ROOFTOOPS - 310.15(B)(2) AND Ex
课时53：PROTECTION OF EQUIPMENT - 240.3 AND TABLE 240.3
课时54：PROTECTION OF EQUIPMENT PROTECTION OF CONDUCTORS - 240.4
课时55：OVERCURRENT DEVICES RATED 800 AMPS OR LESS - 240.4(B)
课时56：OVERCURRENT DEVICES RATED OVER 800 AMPS - 240.4(C)
课时57：OTOR-OPERATED APPLIANCE CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时58：(a) MOTOR AND MOTOR-CONTROL CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时59：(b) MOTOR AND MOTOR-CONTROL CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时60：(a) PHASE CONVERTER SUPPLY CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时61：(b) PHASE CONVERTER SUPPLY CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时62：AIR-CONDITIONING AND REFRIGERATION EQUIPMENT CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时63：(a) TRANSFORMER SECONDARY CONDUCTORS - 240.4(F)
课时64：(b) TRANSFORMER SECONDARY CONDUCTORS - 240.4(F)
课时65：(a) CAPACITOR CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时66：(b) CAPACITOR CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时67：ELECTRIC WELDER CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时68：REMOTE-CONTROL, SIGNALING, AND POWER-LIMITED CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时69：FIRE ALARM CIRCUIT CONDUCTORS - 240.4(G) AND TABLE 240.4(G)
课时70：FIXTURE WIRE - 240.5(B)(2)
课时71：EXTENSION CORD SETS - 240.5(B)(3)
课时72：STANDARD AMPERE RATINGS - 240.6(A) AND TABLE 240.6(A)
课时73：ADJUSTABLE TRIP CIRCUIT BREAKERS - 240.6(B) AND (C)
课时74：SUPPLEMENTARY OVERCURRENT PROTECTION - 240.10
课时75：ELECTRICAL SYSTEM COORDINATION - 240.12
课时76：USING HANDLE TIES - 240.15(B)
课时77：BRANCH-CIRCUIT CONDUCTORS - 240.21(A)
课时78：(a) TAPS NOT OVER 10 FT (3 m) LONG - 240.21(B)(1)
课时79：(b) TAPS NOT OVER 10 FT (3 m) LONG - 240.21(B)(1)
课时80：TAPS NOT OVER 25 FT (7.5 m) LONG - 240.21(B)(2)
课时81：(a) TAPS SUPPLYING A TRANSFORMER [PRIMARY PLUS SECONDARY NOT OVER 25 FT LONG]240.21(B)(3)
课时82： (b) TAPS SUPPLYING A TRANSFORMER [PRIMARY PLUS SECONDARY NOT OVER 25 FT LONG] - 240.21(B)(3)
课时83：(a) TAPS OVER 25 FT (7.5 m) LONG - 240.21(B)(4)
课时84：(b) TAPS OVER 25 FT (7.5 m) LONG - 240.21(B)(4)
课时85：TRANSFORMER SECONDARY CONDUCTORS NOT OVER 10 FT (3 m) LONG - 240.21(C)(2)
课时86：INDUSTRIAL INSTALLATION SECONDARY CONDUCTORS NOT OVER 25 FT (7.5 m) LONG - 240.21(C)(3)
课时87：OUTSIDE SECONDARY CONDUCTORS - 240.21(C)(4)
课时88：SERVICE CONDUCTORS - 240.21(D)
课时89：USWAY TAPS - 240.21(E)
课时90：(a) MOTOR CIRCUIT TAPS - 240.21(F)
课时91：(b) MOTOR CIRCUIT TAPS - 240.21(F)
课时92：CONDUCTORS FROM GENERATOR TERMINALS - 240.21(G)
课时93：PROTECTED BY A DIFFERENTIAL RELAY - 240.92(C)(1)(2)
课时94：GROUNDED (NEUTRAL) CONDUCTOR - 240.22
课时95：CHANGE IN SIZE OF GROUNDED (NEUTRAL) CONDUCTOR - 240.23
课时96：ACCESSIBILITY OF OVERCURRENT PROTECTION DEVICES - 240.24(A)
课时97：ACCESSIBILITY OF OVERCURRENT PROTECTION DEVICES - 240.24(A)
课时98：BRANCH-CIRCUIT OVERCURRENT DEVICES - 240.24(B)(2)
课时99：SIZING - 210.20(A), 215.3, AND 230.42(A)(1)
课时100：(a) SIZING - 210.20(A), 215.3, AND 230.42(A)(1)
课时101：(b) SIZING - 210.20(A), 215.3, AND 230.42(A)(1)
课时102：DISCONNECTING MEANS FOR FUSES - 240.40
课时103：SIZING - 210.20(A), 215.3, 230.42(A)(1), AND 230.90(A)
课时104：MARKING - 240.83
课时105：CLEARING TIME - 230.95(A), 240.13, 210.13, AND 215.10
课时106：GROUND-FAULT PROTECTION FOR PERSONNEL - 590.6
课时107：(a) FEEDERS AND BRANCH CIRCUITS - 240.100(A) THRU (C) AND ARTICLE 100
课时108：(b) OVERCURRENT RELAYS AND CURRENT TRANSFORMERS - 240.100(A)(1)
课时109：(c) OVERCURRENT RELAYS AND CURRENT TRANSFORMERS - 240.100(A)(1)
课时110：(d) OVERCURRENT RELAYS AND CURRENT TRANSFORMERS - 240.100(A)(1)
课时111：(a) ADDITIONAL REQUIREMENTS FOR FEEDERS - 240.101(A) AND (B)
课时112：(b) ADDITIONAL REQUIREMENTS FOR FEEDERS - 240.101(A) AND (B)
课时113：GROUNDING RECEPTACLES - 406.4(A)
课时114：GROUNDING RECEPTACLES - 406.4(A)
课时115：NONGROUNDING RECEPTACLES - 406.4(D)(2), (D)(3), AND Ex
课时116：REPLACEMENT OF RECEPTACLES - 250.130(C)
课时117：NUMBER ON A CIRCUIT - 210.11(A)
课时118：NUMBER ON A CIRCUIT - 210.11(A)
课时119：WALL RECEPTACLE OUTLETS - 210.52(A)(1) THRU (A)(4)
课时120：WALL RECEPTACLE OUTLETS - 210.52(A)(1) THRU (A)(4)
课时121：(a) WALL RECEPTACLE OUTLETS - 210.52(A)(1) THRU (A)(4)
课时122：(b) WALL RECEPTACLE OUTLETS - 210.52(A)(1) THRU (A)(4)
课时123：RECEPTACLE OUTLETS FOR SMALL-APPLIANCE CIRCUITS210.52(B), 210.52(C), 210.11(C)(1), & 220.52(A)
课时124：RECEPTACLE OUTLETS FOR SMALL-APPLIANCE CIRCUITS210.52(B), 210.52(C), 210.11(C)(1), & 220.52(A)
课时125：WALL COUNTERTOP SPACES - 210.52(C) AND (C)(1)
课时126：ISLAND COUNTERTOP SPACES - 210.52(C)(2)
课时127：RECEPTACLE OUTLETS IN BATHROOMS - 210.52(D)
课时128：RECEPTACLE OUTLETS OUTDOORS - 210.52(E)
课时129：LAUNDRY CIRCUIT - 210.52(F)
课时130：RECEPTACLES IN BASEMENTS - 210.52(G)
课时131：RECEPTACLES IN GARAGES - 210.52(G)
课时132：RECEPTACLES IN HALLWAYS - 210.52(H)
课时133：FOYERS - 210.52(I)
课时134：GFCI PROTECTION OF RECEPTACLES - 210.8(A)(1) THRU (A)(10)
课时135：PROTECTION IN BATHROOMS - 210.8(A)(1)
课时136：PROTECTION IN GARAGES - 210.8(A)(2)
课时137：PROTECTION IN ACCESSORY BUILDINGS - 210.8(A)(2)
课时138：PROTECTION OUTDOORS - 210.8(A)(3)
课时139：PROTECTION IN BASEMENTS AND CRAWL SPACES - 210.8(A)(4) AND 210.8(A)(5)
课时140：PROTECTION OVER COUNTERTOPS - 210.8(A)(6) AND (A)(7)
课时141：PROTECTION OVER COUNTERTOPS210.8(A)(6) AND (A)(7)
课时142：PROTECTION FOR BOATHOUSES - 210.8(A)(8) AND 210.8(C)
课时143：(a) PROTECTION FOR DWELLING UNITS - 210.8(A)(9), (A)(10), AND (A)(11)
课时144： (b) PROTECTION FOR DWELLING UNITS - 210.8(A)(9), (A)(10), AND (A)(11)
课时145：(a) PROTECTION AROUND SWIMMING POOLS - 680.22(A)(1) THRU (A)(5)
课时146：(b) PROTECTION AROUND SWIMMING POOLS - 680.22(A)(1) THRU (A)(5)
课时147：PROTECTION AROUND SWIMMING POOLS - 680.22(A)(1) THRU (A)(5)
课时148：PROTECTION FOR STORABLE POOLS - 680.32
课时149：PROTECTION FOR SPAS OR HOT TUBS - 680.43(A)(1) AND (A)(2)
课时150：PROTECTION FOR HYDROMASSAGE TUBS - 680.71 THRU 680.73
课时151：RECEPTACLES ON CONSTRUCTION SITES - 590.6(A) AND (B)
课时152：RECEPTACLES ON CONSTRUCTION SITES - 590.6(A) AND (B)
课时153：RECEPTACLES ON CONSTRUCTION SITES - 590.6(A) AND (B)
课时154：RECEPTACLES ON CONSTRUCTION SITES - 590.6(A) AND (B)
课时155：RECEPTACLES INSTALLED IN BATHROOMS OF COMMERCIAL AND INDUSTRIAL LOCATIONS - 210.8(B)(1)
课时156：RECEPTACLES INSTALLED IN KITCHENS OF COMMERCIAL AND INDUSTRIAL BUILDINGS - 210.8(B)(2)
课时157：RECEPTACLES INSTALLED ON ROOFTOPS OF COMMERCIAL AND INDUSTRIAL BUILDINGS - 210.8(B)(3)
课时158：RECEPTACLES INSTALLED OUTDOORS - 210.8(B)(4)
课时159：RECEPTACLE OUTLETS INSTALLED IN INDOOR WET LOCATIONS - 210.8(B)(6)
课时160：LOCKER ROOMS WITH SHOWERS - 210.8(B)(7)
课时161：GARAGES, SERVICE BAYS, AND SIMILAR AREAS - 210.8(B)(8)
课时162：Receptacles in Seating Areas and Other Similar Surfaces - 406.5(H)(1) THRU (H)(4)
课时163：RECEPTACLES USED FOR MAINTENANCE ACTIVITIES - 590.6 AND .6(A)
课时164：AFCI-PROTECTED OUTLETS - 210.12(A) AND (D)
课时165：AFCI-PROTECTED OUTLETS - 210.12(A) AND (D)
课时166：Arc-Fault Circuit-Interrupter Protection - 210.12
课时167：Arc-Fault Circuit-Interrupter Protection210.12
课时168：Branch Circuit Extension or Modifications – Dwelling Units - 210.12(D)
课时169：GROUNDING LUMINAIRES - 410.42 AND 410.44
课时170：UNGROUNDED LUMINAIRES - 410.44, Ex. 2
课时171：REPLACEMENT LUMINAIRES - 410.44, Ex. 1
课时172： (a) NUMBER ON A CIRCUIT - 210.11(A)
课时173：(b) NUMBER ON A CIRCUIT - 210.11(A)
课时174：LIGHTING OUTLETS IN DWELLING UNITS - 210.70(A)
课时175：LIGHTING OUTLETS IN HABITABLE ROOMS - 210.70(A)(1)
课时176：LIGHTING OUTLETS IN BATHROOMS - 210.70(A)(1)
课时177：WALL-SWITCHED RECEPTACLE LIGHTING OUTLETS - 210.70(A)(1), Ex. 1
课时178：LIGHTING OUTLETS IN HALLWAYS - 210.70(A)(2)(a)
课时179：LIGHTING OUTLETS IN STAIRWAYS - 210.70(A)(2)(1)
课时180：LIGHTING OUTLETS IN GARAGES - 210.70(A)(2)(1) AND (A)(2)(2)
课时181： LIGHTING OUTLETS AT OUTSIDE DOORS - 210.70(A)(2)(2)
课时182：LIGHTING OUTLETS IN UTILITY ROOMS - 210.70(C)
课时183：LIGHTING OUTLETS IN BASEMENTS - 210.70(C)
课时184：LIGHTING OUTLETS IN ATTICS - 210.70(C)
课时185：LIGHTING OUTLETS IN UNDERFLOOR SPACES - 210.70(C)
课时186：LIGHTING OUTLETS OVER BATHTUBS - 410.10(D)
课时187：LOCATION - 410.16(C)(1) THRU (C)(5)
课时188：GUEST ROOMS OR GUEST SUITES IN HOTELS AND MOTELS - 210.70(B)
课时189：COMMERCIAL AND INDUSTRIAL ATTICS AND UNDERFLOOR SPACES (ALL OCCUPANCIES) - 210.70(C)
课时190：ILLUMINATION FOR ELECTRICAL EQUIPMENT IN COMMERCIAL & INDUSTRIAL LOCATIONS - 110.26(D)
课时191：RECESSED LUMINAIRES - 410.115(B) AND Ex.'s 1 AND 2
课时192：DISCHARGE LIGHTING - 410.140(B)
课时193：LIGHTING OUTLETS AT SWIMMING POOLS - 680.22(B)
课时194：LIGHTING OUTLETS AT SWIMMING POOLS - 680.22(B)
课时195：WET-NICHE LUMINARIES - 680.23(B)(1) THRU (B)(8)
课时196：WET-NICHE LUMINARIES - 680.23(B)(1) THRU (B)(8)
课时197：WET-NICHE LUMINARIES - 680.23(B)(1) THRU (B)(8)
课时198：DRY-NICHE LUMINARIES - 680.23(C)
课时199：NO-NICHE LUMINAIRES - 680.23(D)
课时200：LUMINAIRES OVER SPAS OR HOT TUBS - 680.43(B)
课程介绍共计200课时，12小时57分13秒
SUPPORT AND ARRANGEMENT OF BUSBARS AND CONDUCTORS
408.3
Busbars shall be held firmly in place in the enclosure and shall be arranged in such a way to allow adequate space for conductors to be terminated. Busbars shall be sized with enough capacity to handle the normal currents in amps of the electrical system. In addition, they shall carry safely any type of short-circuit or ground-fault condition.
CONDUCTORS AND BUSBARS ON A SWITCHBOARD OR PANELBOARD
408.3(A)
Conductors and busbars on a switchboard, panelboard, or control board shall be so located as to be free from physical damage. Service sections of such boards shall be separated from the other electrical components. These components shall be properly secured in an approved manner.
Note, conductors entering a certain section shall terminate in such section, except where it is not practical for control, interconnecting conductors, or other conditions of use.
OVERHEATING AND INDUCTIVE HEATING
408.3(B)
The arrangement of busbars and conductors shall be such as to avoid overheating due to inductive effects. The inductive effect of each conductor is neutralized when grouping all conductors together. To accomplish the minimizing of heating effects, the ungrounded (phase) conductors, grounded (neutral) conductors, and equipment grounding conductors, where used, shall be in the same enclosure, raceway, cable, cord, etc. (See Figure 7-1)
