Motors
Equipment for General Use
Specials
Specials Cont.
Tables
100
This is the maximum rating of a motor that is allowed to be controlled by an attachment plug and receptacle or cord connector.
What is 1/3 hp
100
This type of motor-compressor will have the motor and the compressor in the same enclosure and operating in a refrigerant.
What is Hermetic Refrigerant Motor
100
These types of conductors are allowed to be used in non-power limited fire alarm systems.
What is copper
100
This is the maximum distance in inches that conduit can extend from an enlosure that contains fuses in a class 1, division 1 location before the installation of a sealing fitting.
What is 18
100
This table is used to determine the number of strands in a stranded conductor
What is table 8
200
A breaker serving as a disconnecting means shall have a rating of this percentage of the motor full load current rating.
What is 115%
200
The maximum amount of time allowed to drain a capacitor operating at 240 volts to 50 volts or less after being disconnected from the source of supply.
What is 1 minute
200
When connecting a generator to this type of system, the transfer switch can be automatic or manual.
What is optional standby systems
200
The minimum number of circuits required to supply the car lights in a bank of 6 elevators in a commercial office building.
What is 6
200
This table provides percent area of conduit and tubing.
What is table 4
300
The full load current rating of a single phase, 230V, 7.5 Hp motor.
What is 40 A
300
A dry-type transformer, rate over 15000 volts shall be installed in this.
What is a transformer vault
300
This schedule of PVC shall be used for fixed wiring in spaces above a class 1 location in bulk storage plants.
What is schedule 80
300
Three type of metals produced by the use of electrolytic cells.
What is Al, cadmium, copper, magnesium, sodium and zinc
300
The maximum percentage of fill for conduit nipples that are 24" or less in length and are installed between boxes, cabinets and similar enclosures.
What is 60%
400
The section in article 430 that describes how to determine the full load current rating of a motor
What is 430.6(A)(1)
400
The phase arrangement on 3-phase buses in switchboards or panelboards is specified by this section of the NEC
What is 408.3(E)
400
An occupancy that is designed to contain 100 persons or more is considered one of these.
What is assembly occupancy
400
A center pivot irrigation machine must have this to provide lightning protection.
What is a grounding electrode system
400
This table provides AC power source limitations for determining the classification of a limited power source.
What is 11(A)
500
The minimum size THWN branch-circuit conductor feeding a 120 volt 10Hp motor with a service factor of 1.15.
What is #1 AWG
500
An industrial control panel shall not be installed when this exceeds its short-circuit current rating as marked on the equipment.
What is available fault current
500
Flexible cord used for the connection of a submersible aeration pump in a man made pond shall have this designation in its listing.
What is W
500
An underwater luminaire installed in permanent swimming pool shall not be supplied by a circuit over this voltage between conductors
What is 150 volts
500
What size rigid metal conduit would be required for the installation of (3) 4/0, (1) 3/0, and (1) #4 XHHW conductors?
What is 2"
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