Lockout tagout test method
Normal startup mode
Other unconventional modes of operation
Before the test, clean up the personnel and equipment in the area around the equipment
When testing, mask any restrictions that may prevent the device from starting or moving
For equipment with a test button, press the test button to confirm that the button is normal before cutting off the switch of the power box. After locking, confirm the test again to ensure that the power supply is indeed cut off
Test start or move equipment to ensure full control of hazardous energy and materials
"Test" the output of all security interlocks or automatic controls that may prevent the device from starting or moving is "zero"
Whether the valve is closed; Play open all
The rotating equipment has stopped running; Verify that the component is disconnected and confirm
The stored dangerous energy has been removed or has been properly clogged
In hazardous energy removal, the pressure gauges should be observed to confirm that they are in working condition
When verifying isolation, people should be careful not to put themselves at risk or create additional hazards
For some work tasks that are exposed to electrical hazards, the power supply should be visually checked if possible
"Test before Touch" is short for "Test before release" and to Test for the presence of no voltage
Must be tested before touching any exposed contact
The main points of "pre-release test" are as follows:
Test the correct selection, purchase, calibration, maintenance and storage of equipment
Test every loop, every contact, every operation.
Verify the reliability of the instrument on a known power supply before and after the test.
Appropriate personal protective equipment
It is the responsibility of the supervisor in the area where the equipment is operated to inform the maintenance personnel and the contractor of the work hazards, lock conditions and test results
The operator checks each lock point carefully