Title Page

  • Site conducted

  • Conducted on

  • Prepared by

  • Location

  • Asset Type

  • Frequency

  • Work Order Number

Untitled Page

(T)ools, (S)afety Equipment and (M)aterials

  • Electrician's tool set

  • Lubricants

  • Cleaning tools and materials

  • Vacuum cleaner

  • Micro-Ohmmeter

  • Magnum DS test equipment

  • Replacement battery

Safety Guidelines

  • This maintenance task should be performed only by personnel qualified in maintaining power circuit breakers and switchboard instruments

  • Follow the site safety rules and your supervisor's instructions

  • Schedule the work with the users

  • Report any problems you find

  • Record the results in the maintenance log

Maintenance Procedures


  • Test the breaker open and close function:

  • Charge the spring breaker mechanism

  • Remove the control power fuses so the breaker spring mechanism doesn't recharge

  • Manually perform three open and close operations to verify proper operation of the charge spring mechanism

  • Recharge the spring mechanism

  • Close and open the circuit breaker three times electrically to verify operation of the breaker close and trip features

  • Replace the control power fuses

  • Check the condition of the arc chutes

  • Inspect the condition of the primary contacts. Measure and record contact resistance

  • Check all connections for proper torque

  • Check the condition of the breaker and switchboard connection tabs

  • Thoroughly clean the circuit breaker

  • Test the circuit breaker in the racked-out position prior to returning it to service

  • Test the battery in the Digitrip electronic trip units

  • Rack the breaker back into the switchboard

  • Use the test kit to test the trip unit operation

  • Test the racking and interlock command sequences

  • Open and close the circuit breaker remotely, using the different auxiliary devices

  • Return the circuit breaker to service and perform an operational test of the normal and emergency

  • Return the circuit breaker to service and perform an operational test of the normal and emergency modes

  • Record the number of operations shown on the counter

The templates available in our Public Library have been created by our customers and employees to help get you started using SafetyCulture's solutions. The templates are intended to be used as hypothetical examples only and should not be used as a substitute for professional advice. You should seek your own professional advice to determine if the use of a template is permissible in your workplace or jurisdiction. You should independently determine whether the template is suitable for your circumstances.