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Field Test Best Practices: A Resource for Practical Residential Building Science

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Electrical Safety and Lock Out/Tag Out

Since many field tests in residential buildings are focused on the electrical energy consumption of a house or an appliance within the house, electrical safety is an important consideration.

  • No work should be done on a live electrical panel or circuit.
  • Lock out/Tag out (LO/TO) procedures should be followed to ensure the panel or circuit of interest is de-energized and cannot be re-energized while work is being done.
  • Don’t forget to verify that you’ve controlled all energy sources – try to turn things on, check voltages, etc.
  • PPE must be worn for the zero energy check, before any work is done, just in case energy is still present. 

LO/TO should also be employed with all other sources of hazardous energy that may be present: 

  • Electrical
  • Mechanical
  • Gravity
  • Compressed gas
  • Pneumatic         
  • Hydraulic
  • Chemical