Combustible Dust Testing

Laboratory testing to quantify dust explosion and reactivity hazards

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Gas and Vapor

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Classification of hazardous materials subject to shipping and storage regulations
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Thermal Stability

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

Adiabatic Calorimetry
Data demonstrate the consequences of process upsets, such as failed equipment or improper procedures, and guide mitigation strategies including Emergency Relief System (ERS) design
Reaction Calorimetry
Data yield heat and gas removal requirements to control the desired process chemistry
Battery Safety

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

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Cable Testing
Evaluate electrical cables to demonstrate reliability and identify defects or degradation
Equipment Qualification (EQ)
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Water Hammer
Analysis and testing to identify and prevent unwanted hydraulic pressure transients in process piping
Acoustic Vibration
Identify and eliminate potential sources of unwanted vibration in piping and structural systems
Gas & Air Intrusion
Analysis and testing to identify and prevent intrusion of gas or air in piping systems
ISO/IEC 17025:2017

Fauske & Associates fulfills the requirements of ISO/IEC 17025:2017 in the field of Testing

ISO 9001:2015
Fauske & Associates fulfills the requirements of ISO 9001:2015
Dust Hazards Analysis
Evaluate your process to identify combustible dust hazards and perform dust explosion testing
On-Site Risk Management
On-site safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up
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 safely handle the effluent discharge from an overpressure event

FATE™ & Facility Modeling

FATE (Facility Flow, Aerosol, Thermal, and Explosion) is a flexible, fast-running code developed and maintained by Fauske and Associates under an ASME NQA-1 compliant QA program.

Mechanical, Piping, and Electrical
Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid, flow, and electric power systems
Hydrogen Safety
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Thermal Hydraulics
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Nuclear Safety
Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant
Radioactive Waste
Safety analysis to underpin decomissioning process at facilities which have produced or used radioactive nuclear materials
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 and Parts for the DSC/ARC/ARSST/VSP2 Calorimeters

Products and equipment for the process safety or process development laboratory


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


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


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

Process Safety Newsletter

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

Recent Posts

Utilizing a Parallel Resonant Test System During Cable Aging Testing

Posted by Fauske & Associates on 04.19.17


Fauske & Associates, LLC (FAI) recently performed a cable aging project which required energizing a medium voltage power cable at frequencies beyond the conventional 50/60 Hz. The purpose of the project was to observe aging effects while the cable was energized underwater, at elevated temperatures and frequencies.

One of the challenges was deciding the method to energize the circuit. The cable’s capacitive reactance decreases as the applied frequency increases, resulting in higher reactive current demands from a power supply which limits the selection of power supplies.
A technique used for medium to high voltage cable testing applications is to utilize a parallel resonant test system. A parallel resonant circuit is an inductor and a capacitor in parallel driven by a voltage supply at a frequency where the inductor and capacitor reactances cancel each other because they are 180° out of phase and equal in magnitude. The frequency at which this occurs is known as the resonant frequency. The following equations demonstrate the relationship between inductive reactance (XL), capacitive reactance (XC) and resonant frequency:

Untitled-3-2.jpg                                                                                                                                              Equation 1 
     L is the inductance value
     C is the capacitance value
     f is the resonant frequency

Equation 1 ultimately yields the resonant frequency equation:
Untitled-4-1.jpg                                                                                                                                              Equation 2

A coiled cable was used as the inductor and the capacitor was that of the cable under test. For this test configuration a transformer was needed to elevate the voltage to the required test value.

When in resonance the circuit current is due to the resistance only. The inductor and capacitor exchange energy every half cycle and therefore the current follows the same pattern. No reactive current is supplied to the inductor and capacitor which was the objective of the circuit.

The following photographs show the example parallel resonant test system used at FAI. Figure 1 shows a pole top transformer capable of stepping up the low input voltage to medium and high voltage levels and handling the reactive power levels of the circuit. To the right of the transformer in Figure 1 is an inductor coil. The gauge of the inductor coil must be properly sized to carry the reactive current values of the circuit. Figure 2 below is an example medium voltage power cable used for testing.

parallel resonant testing  parallel resonant test system

                              Figure 1                                                                                                                  Figure 2

In summary, the circuit characteristics of a parallel resonant circuit at its resonant frequency allow testing of medium voltage cables at elevated frequencies while requiring relatively low input reactive power.

For more information, contact: (630) 323-8750,

 #cable health, #nuclear #cable and wire


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