210.12 210-12B | All 15 & 20 AMP 120V outlets shall be ARC fault protected unless
already on a GFCI. Smoke detectors must be on a AFCI circuit. KITCHEN ,GARAGE,LAUNDRY AND
BATH ROOM LIGHTS DO NOT NEED TO BE ON ARCH FAULT. |
210.4 | All multiwire circuits
must be on a 2 pole or 3 pole breaker or used an approved handle tie with singel breakers. |
210.4D 210-13 | All multiword circuits in a raceway must be tied together when entering
a box or panel so the neutral stays with the proper circuit. A single receptacle behind the fridge and
sump pump do not have to be gfci protected. |
250.20d 210.52 | Make
sure the neutral wire in the generators are isolated and not bonded to the case. One Split receptacle can serve as the
lighting outlet and REC requirement as long as only half the REC is switched and half hot. |
210.52 B2 | Allows
the appliance circuit to feed the gas oven or gas range receptacle. |
210.8 | All 15
& 20 AMP receptacles shall be GFCI in a kitchen or food prep area. All unfinished areas of a house must be GFCI
protected. All garage REC even ceiling must be on a GFCI. ( fridge VAC and door opener ) |
230 | Service cable must be protected from physical damage with SCH 80 PVC. |
240.24 | A
breaker panel can be mounted on a stair landing but not over the stairs. |
250.146 | IG receptacle
must be installed in a metal box. Use hcf cable or a raceway for the feeder. |
250.32 | A remote
building must land the ground wire on a ground bar and keep the neutral isolated to the panel. Treat as a sub panel with a
main breaker and ground rod. |
250.35 B2 | A ground rod is not needed on a generator. The case shall be grounded
back to the main service. |
250.52 | 20' of #4 in the footer is a grounding electrode. |
250.54 | Do not use a ground rod for grounding a light pole or equipment. |
250.6 | Grounding
can be done by a nut and bolt or self taping machine screw that has at least 2 threads in the metal. |
300.3 | Underground splices must be rated for wet locations (wire & wire nuts.) |
300.9 | Raceway
and cables can enter an open bottom or an enclosure. (I.e. generator and boat) |
310.4 | 1/0
and larger can be run in parallel. |
310.15 | Add 40 degrees to roof top wiring in a raceway. #6 only good for
43 AMPS. |
314.22
314.27 | All ceiling boxes must support a min of 50LBS.
smoke
detectors are allowed in a plastic box. |
338
338.10 | SE service cable can not be sleeved
underground.
#4al only good for 55 amps #2al only good for 75 amps 1/0al needed
for a 100 amp feeder or sub panel. se cable shall only use the 60 degree table |
350.3 | PVC support
1/2"=3' spacing of bands 11/4" to 2"= 5' spacing of bands. |
356 | LFNC liquid tight car flex
is good underground and in cement. Good in length over 6' be listed for the above. |
362 | ENT
Must be supported every 3'. |
406.11 | All 15 and 20 AMP receptacles in a dwelling must be tamper proof. |
408.4 | All panels must be labeled exactly (no person, names of rooms, or general listing.) No more just writing lights
receptacles. ( Must be front bed rear bed mid bed etc.) |
410.10 | Tub/shower track and hanging
lights must be 8' above tub rim and 3' away from tub shower. |
410.130 | All fluorescent lights
must have a disconnect on each fixture. All legs including neutral must be disconnected if on a multi wire circuit. |
410.151 | Track lights can be longer than 16' the connected load must not be more than the rating of the track. A 20 AMP
circuit cannot feed a 15AMP rated track. |
422.11E3 | Hot water heater shall have a 10/2 on a 30 AMP breaker with a disconnect
switch. |
422.51 | All vending machines must be on a GFCI breaker. |
422.52 | All drinking water fountains must be GFCI protected. |
430.102 | A motor
controller can serve as a disconnect means as long as it can not come on automatically. |
440.14
511 | A disconnect can be mounted on equipment as long as it is not on a removable panel.
Minor repair garages are not clasified ( ie jiffy lube mr. tire )a ventalated pit is unclassified |
680.1 | Nitch box must be supported. Must be 4' from the water and 8" above the pool deck. |
680.8 | All overhead wires must be 22.5'(0-750V) above the water.( 25' over 15KV) |
680.9 | Pool
heaters must not draw more than 48 AMP on a 60 AMP breaker. |
680.10 | All wiring shall be more
than 5' from the pool or be in pipe. All PVC must be 18" deep near the pool. |
680.12 | REC
for pool equipment must be 5' from the pool unless a barrier is present. |
680.12A | 3' bonding
ring must go around a pool or hot tub even in the dirt. attach the ring to the pool at 4 equal points |
680.17 | Plug in pump motor must be 6' from the pool or tub and have an integral GFCI plug. |
680.21 | Pool pump motors and spas may use a cable assembly in the house with an uninsulated ground wire with an over
all covering. Romex i.e. |
680.22 | REC can be between 6' to 20' and less than 6' 6" for pool convenience. |
680.22A | All 15 and 20 AMP 120V OR 240V motors must be GFCI protected. |
680.22B | All
fans and light fixtures must be 12' high above the pool out to 5' beyond the pool water. All inside lights must be 7'6" above
the water. All existing lights shall be 5 from the pool or 5' high and GFCI protected. All
lights within 10' of a pool must be GFCI protected. |
680.23F1 | Where a transformer is
used for a wet nitch fixture, the car flex or seal tight must not be longer than 6'. All metal
parts including the window frames and fences within 5' of the pool must be bonded. |
680.4 | ROMEX
can be used to feed the motors if installed through the house. |
680.42A1 | Carflex must not be longer
than 6' when wiring a tub or spa feeder. |
680.42C | A cable assembly ( ROMEX ) can be used to wire a hot tub. Copper
only. |
680.43 | Spa or hot tub inside must be more than 6' from the water. A receptacle must be
located between 6 & 10' from the tub. |
680.5 | REC located between 6 & 10' must be GFCI and twistlock. |
680.71
| A #8 bond must go from the water pipe to the pump motor for an inside
tub.
Bonding grid: install a #8 bare copper 18" to 24" from the inside edge of the pool around the entire pool and
connect to the pool at 4 equal points.
400 AMP service with 4/0 AL wire is #2 ground and bond
jumper. 400 AMP service with 3/0 CU wire is a 1/0 ground. Mcap = all purpose MC cable not
allowed in baltimore county |
| GFCI protection is needed in all unfinished spaces in the
basement,all rooms in the basement must have aleast 1 receptacle. next to A/C units ( within 25' of the unit ) within
6' of a wet bar. Up to a 6' WIP in a drop ceiling for light fixtures does not need to be secured. A GFCI installed
in a bathroom must not be farther than 3' from the sink.
Main breaker can not be higher than 6'7" |
