NEC

¡Supera tus tareas y exámenes ahora con Quizwiz!

430.6 Ampacity and Motor Rating Determination. (A) General Motor Applications. current

(2) Nameplate Values. Separate motor overload protection shall be based on the motor nameplate _ rating.

430.22 Single Motor. 125 percent

Conductors that supply a single motor used in a continuous duty application shall have an ampacity of not less than __ of the motor full-load current rating, as determined by 430.6(A)(1), or not less than specified in 430.22(A) through (G).

240.85 Applications Slash Rating

A circuit breaker with a __, such as 120/240V or 480Y/277V, shall be permitted to be applied in a solidly grounded circuit where the nominal voltage of any conductor to ground does not exceed the lower of the two values of the circuit breaker's voltage rating and the nominal voltage between any two conductors does not exceed the higher value of the circuit breaker's voltage rating.

430.52 Rating or Setting for Individual Motor Circuit. (C) Rating or Setting. (3) Instantaneous Trip Circuit Breaker. instantaneous trip

An __ circuit breaker shall be used only if adjustable and if part of a listed combination motor controller having coordinated motor overload and short-circuit and ground-fault protection in each conductor, and the setting is adjusted to no more than the value specified in Table 430.52.

200.6 Means of Identifying Grounded Conductors. (B) Sizes 4 AWG or Larger. 4 AWG

An insulated grounded conductor ___ or larger shall at the time of installation be identified by a distinctive white or gray marking at its terminations.

338.24 Bending Radius. Five times

Bends in Types USE and SE cable shall be so made that the cable will not be damaged. The radius of the curve of the inner edge of any bend, during or after installation, shall not be less than ___ the diameter of the cable.

110.22 Identification of Disconnecting Means. (B) Engineered Series Combination Systems. disconnecting

Each ___ means shall be legibly marked to indicate its purpose unless located and arranged so the purpose is evident.

430.22 Single Motor. (C) Wye-Start, Delta-Run Motor. 72 percent

For a wye-start, delta-run connected motor, the ampacity of the branch-circuit conductors on the line side of the controller shall not be less than 125 percent of the motor full-load current as determined by 430.6(A)(1). The ampacity of the conductors between the controller and the motor shall not be less than __ of the motor full-load current rating as determined by 430.6(A)(1).

110.3 Examination, Identification, Installation, Use, and Listing (Product Certification) of Equipment. (A) Examination. judging

In _ equipment, considerations such as the following shall be evaluated:

240.51 Edison-Base Fuses. (A) Classification. 30 amperes

Plug fuses of the Edison-base type shall be classified at not over 125 volts and ___ and below.

334.112 Insulation. 90°C (194°F)

The insulated power conductors shall be one of the types listed in Table 310.104(A) that are suitable for branch- circuit wiring or one that is identified for use in these cables. Conductor insulation shall be rated at ____.

90.1 Purpose. (A) Practical Safeguarding. Safeguarding

The purpose of this Code is the practical ___ of persons and property from hazards arising from the use of electricity.

440.64 Supply Cords. 3.0 m (10 ft) and 1.8 m (6 ft)

Where a flexible cord is used to supply a room air conditioner, the length of such cord shall not exceed ___ for a nominal, 120-volt rating or ___ for a nominal, 208- or 240-volt rating.

240.10 Supplementary Overcurrent Protection. shall not

Where supplementary overcurrent protection is used for luminaires, appliances, and other equipment or for internal circuits and components of equipment, it shall not be used as a substitute for required branch-circuit overcurrent devices or in place of the required branch-circuit protection. Supplementary overcurrent devices __ be required to be readily accessible.


Conjuntos de estudio relacionados

Chronic Pain and Headaches Review (Prep U)

View Set

Cognition Exam 2 PSY 440 (STM, LTM, Semantic, Memory Failure)

View Set

Idiomatic Expressions and Cognates

View Set

Chapter 32: Consumer and Environmental Law

View Set

Managerial Accounting Final CH 11,13,14

View Set

Economics and Financial Literacy

View Set