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.