Process Results' licensed professional engineers can provide an assessment of the arc flash hazard and associated risk analysis of electrical equipment in conformity with NFPA 70E-2009 and NESC-2007. The ultimate purpose of the arc flash hazard analysis is to determine proper Personal Protective Equipment (PPE) for live work and implement this into a safety program which will most effectively reduce, and hopefully eliminate, arc flash incident injuries and deaths. The type of assessment is dependent on the system and safety program with which the results will be implemented, and can be tailored to fit the needs of each unique system.
Modeling analysis:
System data is fully modeled and included in analysis. Hazard risk category levels 0 thru 4 and dangerous calculated for each piece of equipment. Non-vital information is excluded, unless requested otherwise by client. Some benefits for this assessment include the following:
System data can possibly be reduced through site analysis, safety program integration, and discussions with clients while remaining in conformity to requirements of NFPA-70E. The benefits of the study are limited through this approach, but the cost and time will be reduced.
Table Analysis (typically not applicable):
The table method can only be used if certain restrictions are met which include available fault current, fault clearing times, and voltage levels. This excludes most systems and is often only available for small, simple systems. This assessment is best used as a temporary solution until a complete analysis is performed. Some benefits for this assessment include the following:
Arc flash hazard studies include development of labels compliant with NEC-2008 section 110.16. DuralabelsTM are unique custom labels, compliant with ANSI Z535.4-1998, that are printed for each piece of equipment which aid with proper installation and provide accurate information that is easy to read. The labels are printed using black thermal cartridges and are rugged and ideal for indoor installations. For outdoor applications a covering can be used to protect the labels for 10 years. Company logos or other simple images can be printed on the labels in addition to the customized equipment information or layouts.
Arc flash hazards should be a concern for all companies that are serious about protecting employees, and Process Results can help develop the proper assessment that is best for each system. For questions or clarification in regards to performing an arc flash hazard analysis, email us at info@processresults.com or use the Ask An Engineer feature to submit your questions.
