Presentation on theme: "Arc Flash & Data Centers March 2015 Matt Phillips, VP of Business Development Frank Jenkins, Sr. Electrical Engineer."— Presentation transcript:
Arc Flash & Data Centers March 2015 Matt Phillips, VP of Business Development Frank Jenkins, Sr. Electrical Engineer
Agenda Arc Flash What is it? Why it is important? Who is responsible? How does it affect work? Where is it headed? How do we react? Key takeaways What are we discussing today?
Definition “Serious harm to people” An arc flash is an undesired electric discharge that travels through the air between conductors or from a conductor to a ground. The resulting explosion can cause fires and serious harm to equipment and people.
Why is Arc Flash a big topic Code, Regulations, and Lawyers NFPA 7NFPA 70E 2015 Standard for Electrical Safety Requirements for Employee Workplaces OSHA Standards 29-CFR, Part 1910 Sub part S (electrical) Standard number NEC 2002 Article NFPA 70B 2002 Recommended Practice for Electrical Equipment Maintenance. There are almost as many lawyers as engineers at Arc Flash Training Seminars
Arc Flash and Data Centers Is de-energized work really just an inconvenience At many data centers, ‘live work’ occurs because the facility feels it is unfeasible to de-energize the equipment — the facility simply believes they cannot shut it down. However, most of the time it is more of an inconvenience, and OSHA will not allow live work to occur just because it's inconvenient to de- energize it. We tend to see that data centers try and justify live work; however, OSHA will not agree with them.
Energized Work When can we work hot 1.When Powering down equipment becomes an increased hazard: i.e. A Medical facility may require uninterrupted electricity for life support systems 2.When it is simply infeasible to power down; i.e. taking voltage readings, IR Scans, and troubleshooting live components. Note: OSHA recognizes and allows this without EEWP. However, PPE is required and no physical work can be performed without 1 st employing an EEWP
Energized Electrical Work Permit OSHA Approved -
Future of Arc Flash Coming Soon Rules are already in place Enforcement is coming soon! PPE is mandatory Energized work will be nearly impossible NFPA 70E make business owners to share liability Energized Electrical Work Permits
How do we react? N OW AND FOR FUTURE Focus on Arc Flash during designs Arc resistant SWGR Remote racking controls Work arounds for de-energized maintenance and additions Remote Distribution Panels vs. Standard PDUs
Existing Facilities R EQUIREMENTS The NFPA 70E Edition – Standards for Electrical Minimum requirement – Factory Labels Mandatory Full study if any remodels 2012 & 2015 Edition further clarified and mandated compliance. OSHA Requirements Safety of workers Study is highly recommended!
What to expect from a study HOW DO I GET THIS DONE Breaker & switch operations changes Cost for future work may increase Trained personnel New Safety & PPE Standards PPE Purchased Maintenance and installations become more challenging De-energized work may become mandatory Costs to mitigate above Level 4
De-energized work ARE YOU FOR REAL Know your Tier Level 1.Tier I - Single path of power 2.Tier II - Single path of power - Redundant components 3.Tier III - Multiple power and cooling distribution paths, only one path active, redundant components, concurrently maintainable 4.Tier IV – Multiple active power and cooling distribution paths, redundant components, concurrently maintainable, fault tolerant “ Learning to trust concurrently maintainable ”
Learning to trust concurrently maintainable 1 st time – common issues How things are plugged-in Both on same bus Circuit overloads In rack PDU overloads Server Issues Power Supplies Manual reset vs. auto Difficulty getting it approved Expected Benefits Improved Confidence Improved Change Control Safer work environments for maintenance Opportunity to operate / exercise standby equipment Hardware validation Peace of Mind Dual Bus Testing
Key Takeaways IMPROVING SAFETY Complete an Arc Flash Study Employ Mitigation Strategies Review & Update Safety Standards Train personnel New PPE Standards Understand and trust your “Concurrent Maintainability” Save Lives & Injuries Action Steps
Questions? Thank you Matt Phillips Vice President of Business Development, Secretary/Treasurer Frank Jenkins Senior Electrical Engineer