Understanding the hazards and qualifications involved with arc flash analysis fieldwork Steven J Abbott Stark Safety Consultants Continuing Education Credits NECA has been accredited as an Authorized Provider by the International Association for Continuing Education and Training (IACET) and is authorized to offer IACET CEUs for its programs that qualify under the ANSI/IACET Standard. This session is eligible for 0.1 IACET CEUs To earn these credits you must: Have your badge scanned in and out at the door Attend 90% of this presentation Fill out the online evaluation for this session This seminar is offered as an introduction and will address, What an individual should know who is going to be involved in gathering the necessary field data to be used in an incident energy analysis. In general, this 90 minute instructor-led presentation provides the participant with a basic understanding of safety and technical qualifications and skills needed for "mapping" the electrical system as well as the details and accuracy issues that can be the difference between a good study or "something" less than reliable. 1
Steven J. Abbott President Stark Safety Consultants 16years: JATC committee member 21 years: Electrical Safety Program Developer, OSHA Outreach instructor. 2005: President Stark Safety Consultants 2006: National Training Partner - N.J.A.T.C. 2012: Electrical contributor-qualifiedsafety.com Learning Objectives Following this session, participants will be able to: List the required skills and knowledge of a Qualified Person for work near energized parts. List safety concerns for accessing equipment to allow for minimal facility down time Identify the basic data required to be collected in electrical equipment needed for an incident energy analysis. Identify when a photo is recommended to be taken for liability and verification of device details Identify some typical data collection pitfalls that can effect results of analysis Recordkeeping Budgeting Auditing 2
Why should I get involved? 1. Bid specs are asking for Arc flash and related studies. 2. Requirements for who is doing the study are very demanding 3. I have a customer who has asked for help 4. I know I need to get to my customers about this before someone else does Benefits Good: Help customer understand why /how you need to protect your employees Better: Shift more work to your qualified personnel Best: Become a resource/solution provider..not just the lowest price! OSHA Final Ruling 1910.269 In part No later than January 1, 2015, employers must estimate the incident heat energy of any electricarc hazard to which a worker would be exposed. No later than April 1, 2015, employers generally must provide workers exposed to hazards from electric arcs with protective clothing and other protective equipment with an arc rating greater than or equal to the estimated heat energy. 3
Remember why Purpose and Goals NFPA 70E: 130.5 Arc Flash Hazard Analysis. An arc flash hazard analysis shall determine: Arc flash boundary Incident energy at the working distance Personal protective equipment that people within the arc flash boundary shall use. *Based on the working distance from the employee s face and chest areas from the prospective arc source Done right How do you know 4
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Don t show how it should be Show how it is. Protect yourself 7
Protect yourself Qualified Person NFPA 70E 2012 110.2 (D)(1)(b) Such persons permitted to work within the Limited approach boundary of exposed energized electrical conductors and circuit parts operating at 50volts or more shall, at a minimum be additionally trained in all of the following: Qualified Person Ability to distinguish exposed, energized conductors and circuits from other parts of equipment Ability to determine nominal voltage Understanding of the required approach distances, both arc flash and shock Ability to assess hazards and determine what PPE and safety practices are required to work safely 8
Such Persons shall be familiar with: Special Precautionary techniques Work practices, Voltage testing, LOTO Personal Protective Equipment (PPE) Arc rated clothing, Arc rated head protection options, Voltage rated gloves, tools, Insulating & Shielding materials Blankets, shields, Test Equipment Ratings, limitations, Inspections, Proficiency in indicating functions Inspection, safe use and upkeep of above items Qualified Person 29 CFR 1926.32(l) IN PART "Qualified" means one who, by possession of a recognized degree, certificate, or professional standing, or who by extensive knowledge, training and experience, has successfully demonstrated his ability 29 CFR 1910.399 Qualified person. One who has received training in and has demonstrated skills and knowledge in the construction and operation of electric equipment and installations and the hazards involved. Purpose/goals Bootcamp Equipment needs Data collection Team Qualifications responsibilities/duties Safety procedures Typical data guidelines Photos who, what, when Utility data Data collection pitfalls Dealing with difficult to obtain data Installing labels Tracking changes Hands on training process to assist in growing your team 9
Data collection Base process 1. Protect yourself and others in the immediate area before starting (Boundaries and PPE) 2. Create the Device ID 3. Gather data a.conduit/wire/distance: Incoming line side conduit and wire b.protective device details c.conduit/wire/distance: Outgoing load side conduit and wire 4. Photos and notes 5. Double-check with team Make sure device is secure before moving on 10
1 1. CONDUIT / WIRE / DISTANCE: Incoming Line-side 2 2. DETAILS: Protective device 3. CONDUIT / WIRE / DISTANCE: Outgoing Load-side 3 1 3 3#6 #8N #10G THW Mark conduits to ensure you have clear details after the cover is reinstalled. No Box around ID = no label Breaker 1F25 information Conduit and wire information No distance yet 11
Keys to consider: Evaluate equipment and immediate surroundings with the following in mind: Overall scope of the project Time required to set up arc flash boundary, collect data, and then remove arc flash boundary. i. You may be blocking key traffic areas during this time period ii.you may need to plan or schedule your activities based on operations or processes at the facility. You don t want to open the lunch room panel at lunchtime. Digital Images 12
Refer to file name NOT a date/time stamp within the image Refer to file name NOT a date/time stamp within the image 13
Understanding of trip units/settings Overwhelming Scale 14
Hazardous Conditions Hazardous Conditions Breaker cat # Covered Data Plates 15
Verify Connectivity Verify Connectivity Understand of how to sketch/model 16
#3 wires tapped off of 1200A buss feeding 100amp panel - 95 feet away Be able to spot issues Understand of how to sketch/model 17
Summary May need to open live cabinets to visually gain information needed..danger with this and qualifications needed for those involved. Remember: Conduit in /conduit out and details of gear for data needed Photos can be valuable for preventing going into cabinet a 2nd time.and to validate the data collected Data is not always as obvious as it may first appear Summary Remember accuracy can be life or death : Don t forget why you are doing it in the first place Take the time to confirm you have the data you need in a format that can be used. What you are working for? 18
We fix $5 Haircuts Incomplete Inaccurate BAD Arc flash studies 19