Isolation preparation - specify "device isolation plan"
Identify hazards associated with the equipment to be isolated
Identify the isolation points on the flow meter diagram
Determine how to shut down and decompress equipment
Isolation preparation - energy isolation sheet
Record all isolation points on the energy isolation sheet
The energy isolation sheet shall be kept at the work site together with the work permit.
Isolation preparation - general requirements (according to operating procedures)
All personnel working in isolation must know
The equipment was shut down
The proper place to isolate
Isolate all power sources of a device
Clam preparation - general requirements (according to operating procedure)
Safely empty toxic or flammable liquids and gases
Flammable liquid discharge to the same potential to zero leakage storage area to prevent electrostatic fire
At the first flange nearest to the device to be opened, isolate the processing device
In the process of emptying or relieving the pressure of the process processing equipment, the adjacent area cannot carry out the thermal work.