What is a Work Permit?
A work permit is a formal authorisation to safely carry out work on installations, systems or in high-risk Zones. The aim is to identify risks in advance, take control measures and create clarity over who works where and when.
Work permits are essential in industry to prevent accidents, confusion and energy-related risks during maintenance, modifications or inspections.
🧠 How does a work permit work?
- Application
- A technician or contractor requests work via a permit application form
- Including location, activity, time, systems involved and risks
- Risk assessment
- Identification of hazards: electrical, mechanical, chemical, thermal
- Determination of protective measures: Lock-out Tag-out, PPE, cordoning off, supervision
- Approval
- The work supervisor or installation owner reviews the application
- On approval: the permit is signed and formally issued
- Execution of the work
- Work is only carried out within the permitted parameters
- On any change: the work is reviewed again
- Closing the permit
- The work environment is restored to a safe state
- The work permit is signed off and archived
The permit remains valid for the stated duration; if exceeded, it must be extended or renewed.
🏭 Application in industrial automation
Work permits are used for:
- Maintenance on control cabinets, MCC, PLC, motors
- Electrical work in line with NEN 3140
- Welding work, hot work, ATEX zones
- Work at height, in confined spaces or with chemicals
Often integrated into the organisation’s safety policy and linked to LOTO and supervisory procedures.
🔍 Types of work permits
| Permit type | Application |
|---|---|
| General work permit | Standard maintenance or modifications |
| Electrical permit | Work on or near electrical installations (NEN 3140) |
| Hot work | Welding, grinding, fire-hazard work |
| Confined space entry | Tanks, pits, silos, pipes |
| ATEX work permit | Work in explosion-hazard zones |
🔐 Safety aspects
- Mandatory for high-risk work under the Working Conditions Act
- Allocation of responsibilities: who approves, who executes
- Integration with Lock-out Tag-out
- Traceability: logging and archiving of all issued permits
- On-site checks by the work supervisor or safety expert
A work permit without risk control is an administrative risk – correct execution is crucial.
📌 In summary
A work permit is an indispensable instrument for working safely in industrial environments. By controlling risks in advance and assigning responsibilities, the likelihood of incidents is drastically reduced.