Permit to Work System
Definition
Work permit is a documented piece of paper formulating safety procedures, and it is a part of safe system of work. Work permit also authorize a person or a group to perform maintenance, inspection or construction work.
It is an essential document that categorically spells out task, equipment involved, time limitation, precautionary measures to be taken together with likely hazards to be encountered
- Hot work.
- High-voltage electrical systems.
- Confined space entry.
- Operational pipelines.
- Excavation near buried services.
- Complex machinery.
Operation and Application
- Issue: details of the work; location; date; time/duration; hazards; isolations/controls; PPE.
- Name and signature of authorised person issuing permit
- Receipt: name and signature of person receiving permit.
—— Work can start ——
- Clearance/return to service: permit signed back to confirm workers are finished.
- Cancellation: permit signed to accept area back under normal operation.
- Extension: if necessary.