What are the grounding requirements for an Optical Network Terminal (ONT), that does not leave the building?
When installing a premises powered communication system in a mobile home supplied by cord and plug where no mobile home service equipment or disconnecting means as specified in 840.106(A)(1) and 840.106(A)(2) are in use, how would the mobile home be connected to a proper ground?
Is a 15-ampere, 120 volt branch circuit supplying interconnected smoke alarms in a dwelling required to be protected by an arc fault circuit interrupter (AFCI)?
The test is pretty much your ability to locate an answer to a question using the NEC. You need to be able to understand the question and how to break down the question to be able to locate the answer in the NEC.
I have recently purchased an electric vehicle and the Level 1 supply equipment is rated 125 volts, 10 amperes and is cord-and plug connected. The branch circuit supplying my garage receptacle outlets is rated 20 amperes. Can the existing garage branch circuit be used to supply the EV charging equipment?
If a building is supplied by an emergency or standby power system (480Y/277 vac) and the power source is an outdoor generator, does the feeder from the generator to the building have to be provided with a disconnecting means at the building as specified in 225.32
A projector in a meeting room is mounted below a suspended ceiling. In order to minimize the amount of equipment mounted in or below the ceiling, the plans show the receptacle supplying the projector to be above the ceiling. Can the cord of the projector be run through a bushed ceiling opening to connect to a receptacle located above the ceiling?
Can a totally enclosed dry-type transformer be located in what the NECŪ refers to other spaces used for environmental air (plenum)?
I am performing an outdoor underground luminaire system installation being supplied by 12 volts. The owner of the single-family dwelling prefers the luminaire to be within nearby proximity to the in-ground pool. If the underground wring is 7 ft from the inside wall of the pool, will the installation comply with 680.10 of the NECŪ?
An existing group of conductors installed in a conduit type raceway are removed in order to facilitate repair of a damaged section of the raceway. Are there any requirements in the NECŪ covering the reinstallation of the conductors in the repaired raceway?
Are Class 2 and Class 3 circuits permitted to be in the same raceway as Class 1 circuits? Are there separation requirements between power and signaling or control wiring?
Low Voltage
Journeyman
Low Voltage
01
02
03
04
05
06
07
Does the NEC require ground-fault circuit-interrupter protection for personnel on all on-site-generated power sources (portable generators) rated 15-kW or less? (NEC2011)
08
Does the National Electrical Code require the installation of more than one receptacle in a 72 inch x 36 inch island countertop that contains a cooking unit in the middle, where there are a total of 16 inches of countertop space located behind the cooking unit?
09
Does the National Electrical Code require the frame of vehicle-mounted or portable generator to be grounded? If the generator is intended to be used as a separately derived system, do the grounding and bonding requirements change?
10
