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Electrical Books
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On-Site Electrical and Electrical Safety Training
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On-Site Electrical and Electrical Safety Training
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Article 430 National Electrical Code® Class
This class is held On-site at your location.
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Product Code:
ARTICLE 430 ON-SITE
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or Call 1-800-257-0941 for a Quote
Description
Extended Information
This class covers the calculations and installation requirements for motors and motor control systems to meet the standards of Article 430 of the NEC and JIC standards. The class includes: terminology, motor nameplate requirements, calculating motor circuit conductors, branch circuit overcurrent protective devices, motor and branch circuit overload protection, installation of controllers and disconnects, motor control circuits conductors, feeders and feeder taps.
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Course Outline:
Terminology
Parts of the Article Table 430.1
Parts I through XIV
Motor Nameplate
Information Required
Design Letters
Locked Rotor Indicating Code Letters
Sample Calculations
Table 430.7(B)
Importance of Code Letters
Calculating Motor Circuit Conductors
Using Table 430.250 to find Motor Current
Using Table 310.16
60°, 75°, and 90° wire ratings Termination
Temperature Ratings and Article 110.14(C)
Temperature rating of wires
Table 310.16
Design B motors
Sample problem for calculating Motor Circuit Conductors 75 HP motor
Motor and Branch Circuit Short-Circuit and Ground-fault Protection
Requirements of Part IV of Article 430
Understanding Table 430.52
Short Circuits, Ground Faults
430.52(C)(!) Exception 1 Fuse sizes
240.6 Standard sizes of fuses and circuit breakers
Protecting IEC devices
Fast acting fuses Class J Time Delay fuses
Motor and Branch Circuit Overload Protection
Article 430 Part III
Service Factors
Ambient Temperature
Sample Literature on sizing overloads
Types of overloads
Bi-metal and
Solder pot
Ambient compensated overloads
Magnetic
Solid State
Shunting Overloads During Starting
Understanding 430.35
Automatic Restart
Supervised Alarm
Installation of Controllers and Disconnects
Understanding Parts VII and IX of Article 430
In-Site-From Exception
Locking in Open position
Installing Safety switch
Control Circuit Conductors
Within enclosure Table 430.72(B)
Table 310.17
Feeders and Feeder Taps
Part II of Article 430 Rules
Feeder Calculations
Feeder Conductors
Feeder short-circuit and ground-fault protection
Sample problems
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