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2017
Code Changes
 
 
SIGNIFICANT CHANGES FOR THE 2017 N.E.C.

110.3 EXAMINATION, IDENTIFICATION, USE, and PRODUCT LISTING (CERTIFICATION.

NOTE 1: EQUIPMENT MAY BE NEW, RECONDITIONED, REFURBISHED OR REMANUFACTURED.

C: PRODUCT LISTING, PRODUCT CERTIFICATION MUST BE PERFORMED BY A RECOGNIZED, QUALIFIED ELECTRICAL TESTING LABORATORY THAT PROVIDE PRODUCT CERTIFICATION THAT MEETS OSHA ELECTRICAL STANDARDS.

 

110.14: CONDUCTOR TERMINATION AND SPLICING.

(D) TORQUE. WHERE TIGHTENING TORQUE VALUES ARE INDICATED ON EQUIPMENT OR INSTALLATION INSTRUCTIONS, A CALIBRATED TOOL MUST BE USED TO ACHIEVE THE INDICATED TORQUE VALUE UNLESS THE EQUIPMENT MANUFACTURER PROVIDES AN ALTERNATIVE METHOD OF ACHIEVING THE REQUIRED TORQUE.

210.8 GFCI PROTECTION.

NOTE 2: SEE SEC.422.5 GFCI REQUIREMENTS FOR AUTOMOTIVE VACUUM MACHINES, DRINKING WATER COOLERS, HIGH PRESSURE SPRAY WASHING MACHINES, TIRE INFLATION MACHINES PROVIDED FOR PUBLIC USE, AND VENDING MACHINES.

FOR THE APPLICATION OF SECTIONS 210.8(A)(7), 210.8 (A)(9) AND 210.8(B)(5), DISTANCE IS MEASURED AS THE SHORTEST PATH THE FLEXIBLE CORD WOULD FOLLOW WITHOUT PIERCING A FLOOR, WALL, CEILING OR FIXED BARRIER, OR PASSING THROUGH A DOOR, DOORWAY OR WINDOW.

IN OTHER THAN DWELLING UNITS G.F.C.I. PROTECTION IS REQUIRED FOR SINGLE PHASE RECEPTACLES RATED 50 AMPS OR LESS NOT EXCEEDING 150 VOLTS TO GROUND, AND 3-PHASE RECEPTACLES RATED 100A OR LESS NOT EXCEEDING 150 VOLTS TO GROUND INSTALLED IN THE FOLLOWING LOCATIONS: BATHROOMS, KITCHENS AND ROOFTOPS.

(9)CRAWL SPACE RECEPTACLE OUTLETS, G.F.C.I. PROTECTION IS REQUIRED FOR RECEPTACLES IN CRAWL SPACES.

(E) CRAWL SPACE LIGHTING OUTLETS- DWELLING, GFCI PROTECTION IS REQUIRED FOR 120 VOLT LIGHTING OUTLETS IN CRAWL SPACES IN DWELLING UNITS.

210.12 ARC FAULT CIRCUIT INTERRUPTER PROTECTION.

(B) DORMITORY UNITS ALL 15A AND 20A, 120 VOLT BRANCH CIRCUITS FOR OUTLETS AND DEVICES IN DORMITORY UNIT BEDROOMS, LIVING ROOMS, HALLWAYS, CLOSETS AND BATH ROOMS AND SIMILAR ROOMS IN ACCORDANCE WITH 210.12(A).

(C) GUEST ROOMS AND SUITES, A LISTED COMBINATION A.F.C.I. BREAKER IS REQUIRED FOR ALL 15A AND 20A, 120 V BRANCH CIRCUITS SUPPLYING OUTLETS AND DEVICES IN GUEST ROOM AND GUEST SUITES OF HOTELS AND MOTELS, INCLUDING BRANCH CIRCUIT EXTENSIONS.

210.71 MEETING ROOMS

(A) GENERAL, MEETING ROOMS NOT LARGER 1000 SQ. FT MUST HAVE RECEPTACLE OUTLETS FOR 15A OR 20A 125V RECEPTACLES IN ACCORDANCE WITH 210.71 (b). WHERE A ROOM OR SPACE IS PROVIDED WITH A MOVABLE PARTITION(S), THE ROOM SIZE MUST BE DETERMINED WITH THE PARTITION IN THE POSITION THAT RESULTS IN THE SMALLEST SIZE MEETING ROOM.

(B)NUMBER OF RECEPTACLES OUTLETS REQUIRED. MEETING ROOM RECEPTACLE OUTLETS ARE LOCATED BY THE DESIGNER OR BUILDING OWNER, AND THE NUMBER OF RECEPTACLE OUTLETS ARE DETERMINED IN ACCORDANCE WITH (B)(1) AS FOLLOWS:

(1) FIXED WALLS. THE QUANTITY OF WALL RECEPTACLE OUTLETS IS CALCULATED ON THE BASIS OF A RECEPTACLE OUTLET INSTALLED AS THAT NO POINT ALONG THE FLOOR LINE IS MORE THAN 6 FEET MEASURED HORIZONTALLY FROM A RECEPTACLE IN ACCORDANCE WITH 210.52(A).

(2) FLOOR. A FLOOR RECEPTACLE OUTLET IS REQUIRED FOR EACH 215 SQ FT OR MAJOR PORTION OF A 215 SQ FT MEETING ROOM SPACE HAVING A WIDTH OF 12 FEET OR MORE. THE FLOOR RECEPTACLE OUTLETS MUST BE LOCATED NO LESS THAN 6 FT FROM FIXED WALLS.

250.66 SIZING GROUNDING ELECTRODE CONDUCTORS.

(A) ROD IF THE GROUNDING ELECTRODE CONDUCTOR OR BONDING JUMPER CONNECTS TO ONE OR MORE GROUND RODS[250.52(A)(5)] AND DOESN'T CONNECT TO ANOTHER TYPE OF ELECTRODE THAT REQUIRES A LARGER CONDUCTOR, THE GROUNDING ELECTRODE CONDUCTOR ISN'T REQUIRED TO BE LARGER THAN 6 AWG COPPER.

312.8 SWITCH AND OVER CURRENT PROTECTIVE DEVICE ENCLOSURES.

CABINETS ARE PERMITTED TO CONTAIN OVER CURRENT PROTECTION DEVICES AND OTHER WIRING AND EQUIPMENT AS PROVIDED IN (A) AND (B).

(A) SPLICES,TAPS, AND FEED THROUGH CONDUCTORS.

(B) POWER MONITORING EQUIPMENT. THE WIRING SPACE WITHIN CABINETS CAN CONTAIN POWER MONITORING EQUIPMENT WHERE ALL OF THE FOLLOWING CONDITIONS ARE MET.
(1) THE POWER MONITORING EQUIPMENT IS IDENTIFIED AS A FIELD INSTALLABLE ACCESSORY AS PART OF LISTED EQUIPMENT, OR A LISTED KIT FOR FIELD INSTALLATION IN THE OVER CURRENT PROTECTION DEVICE ENCLOSURES.
(2) THE AREA OF ALL CONDUCTORS, SPLICES,TAPS, AND EQUIPMENT AT ANY CROSS SECTION DOESN'T EXCEED 75 PERCENT OF THE CROSS SECTIONAL AREA OF THAT SPACE.

314.28 SIZING BOXES AND CONDUIT BODIES #4 AND LARGER.

(3) SMALLER DIMENSION CONDUIT BODIES. CONDUIT BODIES SIZED SMALLER THAN REQUIRED BY SEC. 314.23(A)(1) AND SEC. 314.28(A)(2) ARE PERMITTED TO BE USED IF THE CROSS SECTIONAL AREA OF THE CONDUCTORS INSTALLED DO NOT EXCEED THE CROSS SECTIONAL AREA OF THE NUMBER OF CONDUCTORS AND SIZE OF CONDUCTORS MARKED ON THE CONDUIT BODY.

(E)(1) INSTALLATION. POWER DISTRIBUTION BLOCKS MUST BE LISTED; IF INSTALLED ON THE LINE SIDE OF THE SERVICE EQUIPMENT, POWER DISTRIBUTION BLOCKS MUST BE MARKED "SUITABLE FOR USE ON THE LINE SIDE OF SERVICE EQUIPMENT" OR EQUIVALENT.

376.20 CONDUCTORS CONNECTED IN PARALLEL.

WHERE CONDUCTORS  ARE INSTALLED IN PARALLEL AS PERMITTED IN 310.10(H), THE PARALLEL CONDUCTOR SETS MUST BE INSTALLED IN GROUPS CONSISTING OF NOT MORE THAN ONE CONDUCTOR PER PHASE, OR NEUTRAL CONDUCTOR TO PREVENT CURRENT IMBALANCE IN THE PARALLELED CONDUCTORS DUE TO INDUCTIVE RESISTANCE.

400.12 FLEXIBLE CORDS, EXTENSION CORDS AND POWER SUPPLY CORDS.

AN ATTEMPT TO CLARIFY THIS RESTRICTION WAS MADE BUT MISSED THE MARK. REVIEW THIS SECTION CAREFULLY IF YOU HAVE A SITUATION THAT MAY APPLY.

404.2 SWITCH CONNECTIONS

EFFECTIVE  JANUARY 1,2020 THE NEUTRAL CONDUCTOR MUST BE RUN TO ANY REPLACEMENT SWITCH THAT REQUIRES LINE TO NEUTRAL VOLTAGE [404.22] TO OPERATE THE ELECTRONICS OF THE SWITCH IN THE STANDBY MODE.

EXCEPTION: A NEUTRAL CONDUCTOR ISN'T REQUIRED FOR REPLACEMENT SWITCHES INSTALLED IN LOCATIONS WIRED PRIOR TO THE ADOPTION OF SEC. 404.2(C) WHERE THE NEUTRAL CONDUCTOR CAN'T BE EXTENDED WITH OUT REMOVING FINISH MATERIALS. THE NUMBER OF ELECTRONIC LIGHTING CONTROL SWITCHES WITH OUT A NEUTRAL CONDUCTOR ON A BRANCH CIRCUIT MUST NOT EXCEED FIVE SWITCHES, AND THE NUMBER CONNECTED TO ANY FEEDER MUST NOT EXCEED TWENTY FIVE SWITCHES.

404.22 ELECTRONIC LIGHTING SWITCHES.

EFFECTIVE JANUARY 1, 2020 ELECTRONIC LIGHTING CONTROL SWITCHES MUST BE LISTED TO NOT INTRODUCE CURRENT ON THE EQUIPMENT GROUNDING CONDUCTOR DURING NORMAL OPERATION.

EXCEPTION: ELECTRONIC LIGHTING CONTROL SWITCHES THAT PUT CURRENT ON THE EQUIPMENT GROUNDING CONDUCTOR [404.2(C) Ex] MUST BE LISTED AND MARKED FOR USE ONLY FOR REPLACEMENT OR RETRO FIT APPLICATIONS.

406.12 TAMPER RESISTANT RECEPTACLES TYPES 5-15, 5-20, 6-15, AND 6-20 (NEMA WD 6) WIRING DEVICES-DIMENSIONAL SPECIFICATIONS.

(1) DWELLING UNITS.
(2) HOTEL AND MOTEL GUEST ROOMS AND SUITES.
(3) CHILD CARE FACILITIES.

(4) PRESCHOOLS AND ELEMENTARY EDUCATION FACILITIES.
(5) BUSINESS OFFICES, CORRIDORS, WAITING ROOMS AND THE LIKE IN CLINICS, MEDICAL AND DENTAL OFFICES, AND OUT PATIENT FACILITIES.
(6) PLACES OF WAITING TRANSPORTATION, GYMNASIUMS, SKATING RINKS AND AUDITORIUMS.
(7) DORMITORIES.

440.9 GROUNDING AND BONDING.

WHERE A METAL RACEWAY IS RUN EXPOSED ON A ROOF FOR AIR CONDITIONING AND REFRIGERATION EQUIPMENT, AN EQUIPMENT GROUNDING CONDUCTOR OF THE WIRE TYPE MUST BE INSTALLED WITHIN THE OUTDOOR PORTIONS OF THE METAL RACEWAYS USING NON-THREADED FITTINGS.

680.25 FEEDERS.

(A) WIRING METHODS. WHERE A FEEDER IS INSTALLED IN  CORROSIVE ENVIRONMENT AS DESCRIBED IN SEC. 680.14, THE WIRING METHODS MUST COMPLY WITH 680 14(B) OR BE LIQUID TIGHT FLEXIBLE NONMETALLIC CONDUIT. THE WIRING METHODS MUST CONTAIN AN INSULATED EQUIPMENT GROUNDING CONDUCTOR SIZED IN ACCORDANCE WITH SEC. 250.122, BASE ON THE RATING OF THE OVER CURRENT DEVICE, BUT IN NO CASE CAN IT BE SMALLER THAN 12 AWG.

680.74 EQUIPOTENTIAL BONDING (REORGANIZED AND REVISED).

(A) THE FOLLOWING PARTS MUST BE BONDED TOGETHER.

(1) METAL FITTINGS WITHIN OR ATTACHED TO THE HYDRO MASSAGE TUB STRUCTURE THAT ARE IN CONTACT WITH THE CIRCULATING WATER.
(2) METAL PARTS OF ELECTRICAL EQUIPMENT ASSOCIATED WITH THE HYDRO MASSAGE TUB WATER CIRCULATING SYSTEM, INCLUDING PUMP AND BLOWER MOTORS.
(3) METAL-SHEATHED CABLES, METAL RACEWAYS, AND METAL PIPING WITHIN 5 FEET OF THE INSIDE WALLS OF THE HYDRO MASSAGE TUB, AND NOT SEPARATED FROM THE TUB AREA BY A PERMANENT BARRIER.
(4) EXPOSED METAL SURFACES WITHIN 5 FEET OF THE INSIDE WALLS OF THE HYDRO MASSAGE TUB AND NOT SEPARATED FROM THE TUB BY A PERMANENT BARRIER.
(5) ELECTRICAL DEVICES NOT ASSOCIATED WITH THE HYDRO MASSAGE TUB LOCATED WITHIN 5 FEET FROM THE HYDRO MASSAGE TUB.

EXCEPTION No. 1: SMALL CONDUCTIVE SURFACES NOT LIKELY TO BECOME ENERGIZED, SUCH AS AIR AND WATER JETS, SUPPLY VALVE ASSEMBLIES, AND DRAIN FITTINGS NOT CONNECTED TO METALLIC PIPING, TOWEL BARS, MIRROR FRAMES AND SIMILAR NON-ELECTRICAL EQUIPMENT NOT CONNECTED TO METAL FRAMING AREN'T REQUIRED TO BE BONDED.

EXCEPTION No. 2: DOUBLE INSULATED MOTORS AND BLOWERS ARE NOT REQUIRED TO BE BONDED.

(B) BONDING CONDUCTOR: METAL PARTS REQUIRED TO BE BONDED BY 680.74(A) MUST BE BONDED TOGETHER USING A SOLID COPPER CONDUCTOR NOT SMALLER THAN 8 AWG.
 


 

 






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