A fuse rated in continuous amperes not to exceed   ?   times the ampacity of the conductor, or a circuit breaker with a trip setting of not more than   ?   times the ampacity of the conductors, shall be considered as providing the required short-circuit protection for service entrance conductors which operate at over 1000 volts, nominal.

A ground-fault circuit interrupter is generally required to be installed to protect luminaires, submersible pumps, and other submersible equipment installed in permanently installed fountains in accordance with requirements in Part   ?   of Article 680.

What is the minimum cover requirements for Type USE, direct-buried cables which operate at 24 kilovolts? The cables are installed without concrete protection or encasement on commercial property not subject to vehicular traffic.

Pool associated motors shall be permitted to employ cord-and-plug connections. The flexible cord shall not exceed   ?   in length.

Where a permanently installed pool is installed, no fewer than one 125-volt, 15- or 20-ampere receptacle on a general-purpose branch circuit shall be located not less than   ?   from, and not more than   ?   from, the inside wall of the pool.

In locations such as assembly occupancies and theaters, a   ?   for controlling emergency lighting systems shall be located in the lobby or at a place conveniently accessible thereto.

For the installation of underground conduits and cables rated over 1,000 volts, there is a General Note to Table 300.50 for installations in industrial establishments. This note allows a   ?   reduction in the cover requirements for each two inches of concrete placed over the underground installation for all installations except RMC and IMC.

Where direct-buried cables, rated over 1,000 volts nominal, are installed in accordance with Table 300.50, their location shall be identified by a warning ribbon that is placed in the trench at least   ?   above the cables.

Insulated conductors and cables rated for over 1,000 volts, nominal, installed in underground raceways, shall be   ?   for use in a wet location and shall comply with Section 310.10(C).

A 15-kV electrical switchboard is installed on a 13.8Y/8-kV distribution system in an industrial establishment in such a way that there are guarded live parts on both sides of the work space. What is the minimum depth of clear working space required for this installation?

A 15-kV electrical switchboard is installed on a 13.8Y/8-kV distribution system in an industrial establishment in such a way that there are exposed live parts on one side and grounded parts on the other side of the work space. What is the minimum depth of clear working space required for this installation?

A 15-kV electrical switchboard is installed on a 13.8Y/8-kV distribution system in an industrial establishment in such a way that there are exposed live parts on both sides of the work space. What is the minimum depth of clear working space required for this installation?

Class 1 power-limited circuits shall be supplied from a source that has a rated output of not more than 30 volts and   ?  .

Which of the following circuits provides acceptable protection from electric shock?

Power sources, other than transformers, for Class 1 circuits, shall be protected by overcurrent devices rated at not more than   ?   of the volt-ampere rating of the source divided by the rated voltage.

Where Class 1 circuit conductors are in a raceway, the ampacity adjustment factors given in 310.15(C)(1) shall apply only if such conductors carry continuous loads in excess of   ?   of the ampacity of each conductor.

Class 3 power-limited circuit cables and conductors installed, exposed on the outer surface of ceilings and sidewalls, shall not be supported by structural components of the building.

Class 3 cables shall have a voltage rating of not less than   ?  .

In general, voltage ratings shall not be marked on Class 2, Class 3, and Type PLTC cables.

NEC requirements for one entrance to and egress from the required working space not less than 610 mm (24 in.) wide and 2.0 m (6¹/₂ ft) high at each end of the working space for large equipment specifically prohibits   ?   from impeding the entry to or egress from the working space.

Feeders are permitted to be tapped at any point on the load side of the   ?  .

A   ?   is permitted to determine the size of an equipment grounding conductor as long as an effective ground-fault current path (n) is established.

Where a receptacle is installed in a cabinet below a sink, it is   ?   to be installed in a face-up position.

The testing for ground-fault protection of equipment (GFPE) installed in a health care facility must be conducted by a qualified person using a test process in accordance with the instructions provided with the equipment, and a written record of this testing must be made and must be available to the   ?  .