Combustible Dust Testing

Laboratory testing to quantify dust explosion & reactivity hazards

Flammable Gas & Vapor Testing

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Chemical Reactivity Testing

Laboratory testing to quantify reactive chemical hazards, including the possibility of material incompatibility, instability, and runaway chemical reactions

DIERS Methodology

Design emergency pressure relief systems to mitigate the consequences of unwanted chemical reactivity and account for two-phase flow using the right tools and methods

Deflagrations (Dust/Vapor/Gas)

Properly size pressure relief vents to protect your processes from dust, vapor, and gas explosions

Effluent Handling

Pressure relief sizing is just the first step and it is critical to safety handle the effluent discharge from an overpressure event

Thermal Stability

Safe storage or processing requires an understanding of the possible hazards associated with sensitivity to variations in temperature

UN-DOT

Classification of hazardous materials subject to shipping and storage regulations

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Biological

Model transport of airborne virus aerosols to guide safe operations and ventilation upgrades

Radioactive

Model transport of contamination for source term and leak path factor analysis

Fire Analysis

Model transport of heat and smoke for fire analysis

Flammable or Toxic Gas

transport of flammable or toxic gas during a process upset

OSS consulting, adiabatic & reaction calorimetry and consulting

Onsite safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up

Mechanical, Piping, and Electrical

Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid flow, electric power systems

Battery Safety

Testing to support safe design of batteries and electrical power backup facilities particularly to satisfy UL9540a ed.4

Hydrogen Safety

Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen

Spent Fuel

Safety analysis for packaging, transport, and storage of spent nuclear fuel

Decommissioning, Decontamination and Remediation (DD&R)

Safety analysis to underpin decommissioning process at facilities which have produced or used radioactive nuclear materials

Laboratory Testing & Software Capabilities

Bespoke testing and modeling services to validate analysis of DD&R processes

Nuclear Overview

Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant.

Severe Accident Analysis and Risk Assessment

Expert analysis of possible risk and consequences from nuclear plant accidents

Thermal Hydraulics

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Environmental Qualification (EQ) and Equipment Survivability (ES)

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Laboratory Testing & Software Capabilities

Testing and modeling services to support resolution of emergent safety issues at a power plant

Adiabatic safety calorimeters (ARSST and VSP2)

Low thermal inertial adiabatic calorimeters specially designed to provide directly scalable data that are critical to safe process design

Other Lab Equipment (DSC/ARC supplies, CPA, C80, Super Stirrer)

Products and equipment for the process safety or process development laboratory

FERST

Software for emergency relief system design to ensure safe processing of reactive chemicals, including consideration of two-phase flow and runaway chemical reactions

FATE

Facility modeling software mechanistically tracks transport of heat, gasses, vapors, and aerosols for safety analysis of multi-room facilities

Blog

Our highly experienced team keeps you up-to-date on the latest process safety developments.

Process Safety Newsletter

Stay informed with our quarterly Process Safety Newsletters sharing topical articles and practical advice.

Resources

With over 40 years of industry expertise, we have a wealth of process safety knowledge to share.

Recent Posts

Electrical Arc Flash Risk and Shock Hazards

Posted by The Fauske Team on 11.12.19


risk based inspection rbiDo you have the electrical engineering expertise to help you understand and address electrical arc flash and shock hazards in your workplace that may pose a significant risk to the safety of your workers and to ensure full compliance with all regulations and industry standards?

Regulations

OSHA 1910.269(l)(8) requires that employers estimate the Incident Heat Energies that their employees could be exposed to from Electrical Arcs and to provide properly rated protective clothing and other protective equipment for the protection of their employees against burns resulting from Electrical Arc Flash Hazards.

Standards

NFPA 70E Article 130.5 requires that Arc Flash Risk Assessments be performed for all facilities with Electrical Distribution Systems to determine the Arc Flash Hazard levels that exist (i.e. Incident Heat Energies, Arc Flash Boundaries) and the Personal Protective Equipment (PPE) that is required to be worn by your workers for their protection. The Arc Flash Risk Assessment for each facility is required to be updated whenever a major modification to the Electrical Distribution System takes place or at intervals not to exceed 5 years.ARC Flash Using ETAP

The Good Process You Should Know (based on NFPA 70E-2015):

1. Hazard Identification
     a. Collect Data→ Single-Line Diagrams, Electrical Equipment & Protective Device Data, Visual Inspection
     b. Model the Electrical Distribution System Using Modeling Software (ETAP®, SKM or Equivalent)
     c. Compute all Incident Energies Using the Model NFPA 70E and IEEE 1584 methodologies
     d. Compute all Arc Flash Boundaries Using the Model and NFPA 70E and IEEE 1584 methodologies

2. Risk Assessment
     a. Identify and analyze all electrical arc flash and shock hazards
     b. Identify all tasks that are performed
     c. Document the hazards associated with each task
     d. Estimate the risk for each hazard and task
     e. Determine the appropriate protective measures to adequately reduce the level of risk

3. Risk Control Strategies - Recommendations / Options
     a. Elimination/Substitution Inherently Safe Design, Arc Resistant Electrical Equipment
     b. Engineering Controls Protective Barriers, Faster Relays, Current Limiting Fuses, Neutral Resistors
     c. Awareness Warning Signs and Labels
     d. Administrative Controls Training, Procedures, Work Organization and Instruction
     e. Personal Protective Equipment (PPE) Arc-rated clothing, Flash hood, Face shield, Insulating gloves

Highly qualified mechanical engineers should be skilled in many different areas including statics, dynamics, modal analysis, heat transfer, fracture mechanics, mechanical vibrations, flow induced vibrations, acoustic vibrations, etc.  

Engineering and testing labs such as Fauske & Associates, LLC offer a wide-range of electrical engineering services and capabilities which include the following:

  • Arc Flash Hazard Analysis and Risk Assessment
  • NFPA 70E and NFPA 70 (NEC) Compliance Assessment
  • Electrical Hazardous Area Classification
  • Load flow, motor starting, short-circuit, arc flash and coordination studies using ETAP or SKM Power*tools
  • Materials Testing - Dynamic Mechanical Analysis (DMA)
  • Probabilistic Risk Assessment (PRA) and Circuit Analysis
  • Complex Circuit Analysis
  • Cable Testing using Line Resonance Analysis (LIRA), VLF Tan Delta, Insulation Resistance, Elongation at Break (EAB) and High Potential Techniques

If you are interested in staying up to date on the latest industrial safety and hazard management news and insights subscribe to FAI's blog by clicking below.

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Topics: shock hazard, nfpa 70E, risk assessment, arc flash, testing

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