AVID’s Scanning and Thermal Testing & Imaging is a proactive approach rather than a reactive one.

Thermography is a test method that can be used to detect poor electrical connections, unbalanced loads across phases, deteriorated insulation on cables, or other potential problems in energized electrical/mechanical components and switchboards. 

AVID’s Thermographic inspection can help your business avoid:

  • Excess power consumption/use
  • Increased maintenance costs, or catastrophic equipment failure
  • Unscheduled service interruptions or equipment damage

Hipot and Electrical Resistance Testing
Maintenance Services



Everyone can benefit from thermal imaging, but those with high power consumption, multiple branch circuits and distribution subsystems, or heavy equipment have the greatest need. Businesses with high electrical demands should have a thermographic scan performed at least annually on critical systems, such as switchboards, switchgear and transformers. AVID can assist you with determining what and how often to conduct scans.

NFPA 70B, Recommended Practice for Electrical Equipment Maintenance, published by the NFPA, provides a listing of maintenance and equipment testing intervals in Annex L. In addition to these recommended intervals, some conditions and circumstances may specifically warrant a thermographic scan. These include:

Power Systems and Equipment

  • An increase in power consumption without an increase in equipment use.
  • Reports of motors and other electrical equipment “slowing down.”
  • Dimming of lighting (voltage sag) when other equipment is started.
  • Unexplained power surges noted in computer, processing, or building service equipment.
  • Buildings with electrical wiring and joints.
  • Unexplained odour of burning plastic or rubber in the area of electrical panels, wiring, or equipment.
  • Electrical equipment temperature changes.



Power Systems and Equipment

  • Power systems having electrical services greater than 110 volts.
  • Step-up or step-down power transformers on site.
  • Power transfer circuits, such as switchgear and relays.
  • Modifications to electrical panels, power control boxes, and sub-distribution boards.
  • Buildings with electrical wiring and joints.
  • Motor starter circuits.
  • High torque and heavy current draw motors.
  • Presence of high output lighting equipment, such as mercury vapour lamps.
  • Use of uninterruptible power supplies (UPS).

Property History

  • Previous occurrences of fluorescent lighting failures or frequent bulb changes.
  • Construction or repair activities that result in added electrical demand.
  • Damage to facilities from fire, flood, earthquake, or other similar disasters.
  • Previous occurrences of electrical system fires.