Infrascan Thermal Imaging
1300-4-A-SCAN (*1300 427 226)
  • Home
  • Why Infrascan?
    • Testimonials
  • Certificates of Currency
  • Procedure
  • Gallery
  • Residual Current Devices
    • Residual Current Devices
    • PAT (Portable Appliance Testing) and Current NSW Legislation and Compliance
  • Services
    • Electrical Thermal Imaging
    • Thermographic Scanning
    • Thermal Imaging
    • Power monitoring
    • Test and Tag
    • RCD Testing
    • Ground penetrating radar
    • High Temperature Scanning
  • Regulations
  • Contact

Negligible Faults can become significant.

At InfraScan Thermal Imaging we take care to measure currents wherever we can.

This becomes significant where a negligible fault is observed. Consider the following formula:   
                                                               P=I2R 
          (For constant resistance: Power increases at the square if the current)
Sample Graph on Negligible Faults
Lets assume a 20A breaker develops a fault.  
Let's observe the energy distribution at 1A and 20A:  
  At   1 Amp                    1      unit of power is observed.    
  At  20 Amps               400    units of power is observed or 400 times the energy.


The energy must go somewhere so it manifests as heat. 

(Note: There are significant factors reducing the heat at the top end of the scale, and the resistance values change as the conductor heats). 

However the above simplification provides compelling reason to report on negligible faults. Especially those having low current that in a high circuit breaker capacity environment.

Sydney Thermal Imaging
Pty Ltd

What Our Customers Have to Say

Very good reports , thank you. I’m going to have a bit of work following on from them! Thanks again
EM
Operations engineer 

Thank you very much, your prompt, no fuss attention to our 6 monthly scans is an FM's delight.
JM
Facilities Manager 


Sydney Thermal Imaging © 2020 All Rights Reserved
SEO Services by Logical Assembly