1. 1 FOM 4.2 Remediating Arc Flash Hazards in New and Existing Data Centers Joseph Furmanski Director, Data Center Facilities and Technologies

2. 2 Data Center World – Certified Vendor Neutral Each presenter is required to certify that their presentation will be vendor-neutral. As an attendee you have a right to enforce this policy of having no sales pitch within a session by alerting the speaker if you feel the session is not being presented in a vendor neutral fashion. If the issue continues to be a problem, please alert Data Center World staff after the session is complete.

3. 3 My Disclaimer I am not an Electrical Engineer. I am not giving Advice or Recommendations Any OSHA or NFPA Representatives: Please Identify yourselves now! I do not want to have my company fined and I want to keep my job! I don’t want anyone to get hurt!

4. 4 Remediating Arc Flash Hazards in New and Existing Data Centers NFPA 70E and OSHA continue to increase the pressure on data centers to address power safety regulations, which cannot be ignored. This session will discuss how these regulations can be met while maintaining the high availability needs of a large Integrated Healthcare Delivery Organization that depends on the 24/7 availability of its electronic health record systems. Process, mitigation options and costs for new data centers will also be addressed. Translation : How we Handled Arc Flash Electrical Safety in Non-Engineering Terms.

5. 5 What are we going to cover? What is an Arc Flash? Why Do we Care? Our Situation Evaluate and Analyze Current Data Center Solution Implementation What about New Data Centers? Summary and Questions

6. 6 What is an Arc Flash ? An arc flash is the light and heat produced from an electric arc supplied with sufficient electrical energy to cause substantial damage, harm, fire, or injury.

7. 7 Why do we Care about Arc Flashes? Regulations NFPA OSHA Availability Data Center IT Equipment SAFETY

8. 8 Why do we Care about Arc Flashes? When an electrical arc occurs, employees working on electrical equipment without adequate Personal Protective Equipment (PPE) risk serious injury or death. Even someone standing more than 10 feet from the fault source can be fatally burned. According to the American Society of Safety Engineers, more than 3,600 workers suffer disabling electrical contact injuries annually.

9. 9 Our Situation Primary Data Center 21+ Years Old Near Tier 3 – Dual Power Feeds 10,000+ Sq Ft 1 MW Secondary Data Center 27+ Years Old Tier 2 (on a good day) 6,400+ Sq Ft 600 kW We experienced 3 Arc Flash Events !

10. 10 How did we address this? Evaluate and Analyze Replace Secondary Data Center Remediate Primary Data Center

11. 11 Evaluate and Analyze Short Circuit Study Breaker Coordination Study Arc Flash Hazard Risk Assessment

12. 12 Analysis Results Report Labeling Safety Plan Personal Protection Equipment Remediation Recommendations

13. 13 Report – Circuit Breaker Settings

14. 14 Report – Arc Flash Risk

15. 15 Breaker Coordination

16. 16 Labeling

17. 17 Proper Protection Hazard LevelCal/cm 3 PPE Class 440 Arc-rated overalls and jacket, Arc-rated hood w/ hardhat insert, safety glasses, hearing protection (inserts), leather work boots, natural fiber clothing, leather glove protectors, IPE rubber gloves* Class 325 Arc-rated overalls and jacket, Arc-rated hood w/ hardhat insert, safety glasses, hearing protection (inserts), leather work boots, natural fiber clothing, leather glove protectors, IPE rubber gloves* Class 212 Arc-rated coveralls, Arc-rated balaclava, Arc-rated face shield, hard hat, safety glasses, hearing protection (inserts), natural fiber clothing, leather glove protectors, leather work boots, IPE rubber gloves* Class 18 Arc-rated long sleeve shirt/jacket, Arc-rated overalls, hard hat, safety glasses, goggles, Arc- rated face shield, hearing protection (inserts), natural fiber clothing, leather glove protectors, leather work boots, Arc-rated balaclava, IPE rubber gloves* Class 0n/aLong sleeve and long pants (natural fiber), hard hat, safety glasses/goggles, hearing protection (inserts), leather gloves, IPE rubber gloves*

18. 18 Proper Protection – Class 1

19. 19 Proper Protection – Class 4

20. 20 Energized Work Permit

21. 21 Remediation - PDU The search for solutions DC Engineering Company PDU Vendor Power Company Friends Solution Feeder Protection Relay Provides feeder protection, with overcurrent, overvoltage, undervoltage, and frequency elements. Easily upgrade with a small form factor and multiple mounting adapters. It offers combined light and high-speed overcurrent detection for arc-flash events.

22. 22 Feeder Protection Relay The Diagram Goes Here

23. 23 Feeder Protection Relay

24. 24 Implementation

25. 25 PDU

26. 26 Fiber Optic Sensor Placement Box

27. 27 Power CTs

28. 28 Feeder Protection Relay

29. 29 Testing Calibration Electrical Short Circuit (under low power) Fiber Optic – Light Flash

30. 30 The Costs Study - Two Data Centers$ 58,870 Remediation - $ 220,079 Parts- 22 PDUs FPRs$ 33,550 Misc Parts$ 59,675 Labor Electricians$ 93,291 UPS Technician$ 12,000 Engineers$ 21,563

31. 31 What about New Facilities? New Facilities should be designed with Power Safety Compliance in mind! Low Voltage Power Power Bus Etc… The Incremental Cost at Design Time should be negligible.

32. 32 What about New Facilities? Power Bus can possibly minimize exposure. You still need Studies done to build ! Short Circuit Study Breaker Coordination Study Arc Flash Hazard Risk Assessment

33. 33 3 Key Things You Have Learned During this Session 1.Don’t Ignore Regulations meant for your SAFETY ! 2.Evaluate and Analyze 3.Protect, Remediate and/or Prevent

34. 34 Thank you Joseph L Furmanski furmanskijl@upmc.edu