Article 240 ( Overcurrent protection )

Current limiting device

A ______ reduces the current flowing in the faulted circuit .

Protected

A luminaire or appliance is considered _____ when a flexible cord that is approved is used.

601

Selective coordination of equipment of equipment downstream begins at ____ amps.

6'7"

The grip of the operating handle of a switch or circuit breaker shall not be more than _____ above the floor or working platform.

100 feet

The maximum length of a feeder tag conductor in a high bay manufacturing building over 35 feet high shall be_______ .

Short circuit ,overload ,ground fault failure

What three things can cause an overcurrent protection device to trip?

Type S

_______ adapters shall be designed so that once inserted in a fuse holder , they cannot be removed.

Voltage and amperage

Cartridge and fuse holders shall be classified according to their _____ ranges

Overload

Conductor _____ protection is not required where the interruption of the circuit would create a hazard ( fire pump ).

Vertically

Enclosures for over current devices shall be mounted _____ unless impracticable.

50 feet/ 100 feet

Fixture wire shall be permitted to tap a branch circuit provided the cord #18AWG is ____, and the cord #16 AWG is ____ in length.

800 amps

For devices rated ______ or less the next standard higher overcurrent device rating shall be permitted.

Equal to or greater

For devices rated over 800 A , the ampacity of the conductors it protects shall be ______ than the rating of the overcurrent device

1000 A

Ground fault protection of equipment shall be provided for solidly grounded wye systems , 150 to 600v, for each disconnecting means rated _____ or more.

Steps on a stairway

Over current devices shall not be located over ______ .

Bathrooms

Overcurrent device is shall not be located in _____ of dwelling units.

Hexagonal configuration

Plug fuses of 15 A or lower shall be identified a_________ with on the window.

30 A

Plug fuses of the Edison base type shall have a maximum rating of ____ .

125 volts

Plug fuses shall not exceed _____ between conductors.

Supplementary

_______ overcurrent protection may be used to protect internal circuits of equipment.