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Objectives
 To develop a working knowledge of the Power*Tools for
Windows
Arc Flash and Equipment Evaluation
To understand the Arc Flash standards and calculation method
To obtain hands-on experience in Arc Flash Label creation
and customization
To understand the step by step evaluations
process and criteria
for
protective and non-protective devices
Arc Flash analysis of several hands on
examples of electrical  distribution
systems utilizing the PTW software
Interpretation of PTW Arc Flash results
and study options
Review issues related to energy accumulation
and multiple   contributions
and its effects on Arc Flash
Prerequisites Basic computer skills
Students are urged to review:
•
IEEE Red Book Std 141-1993, chapter 4
•
IEEE Buff Book Std 242-2001, chapters
9, 10 & 11
•
IEEE Brown Book Std 399-1997, chapters
2, 7 & 15
•
IEEE 1584 2002/2004a, Guide for Performing
Arc Flash
Hazard
Analysis
•
NFPA 70E-2004 Standard for Electrical
Safety
in
the Workplace
Course
Description The
course covers the overview of the Arc
Flash standards and reviews the calculation
and modeling procedures in Arc Flash and
Equipment Evaluation. Students will earn
2.0 CEUs for this course.
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Target Audience This course is intended for electrical power engineers responsible for the design and analysis of three phase electrical distribution systems. No previous electrical distribution system analysis experience is required.
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Arc Flash Hazard Analysis
 IEEE 1584 and NFPA 70E standards, NEC and OSHA requirements
IEEE 1584 and NFPA 70E Calculation Procedures
Relationship with Short Circuit and Protective Device
Coordination studies
Issues related to energy accumulation and multiple contributions
Issues related to Induction Motor and Synchronous
Machine decays
Bus Report, Line Side and Load Side report options
Arc Flash Labeling Requirements, Personal Protection Equipment
Custom Labels and Work Permits
Examples and interpretation of PTW Arc Flash results
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Equipment Evaluation
 Relationship with Short Circuit, and Equipment Sizing
Input Data requirements, Interrupting Rating, Close-Latch Rating, and Test X/R
Low voltage device evaluation based on ANSI, IEC and
Comprehensive Fault results
HV/MV device evaluation based on ANSI, IEC and Comprehensive
Fault results
Evaluation using bus fault current or worse case current
through the device
Evaluation Criteria Pass, Fail, or Marginal
Interpretation of PTW Equipment Evaluation results |
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