Isolation & Permit to Work Documentation

Hazardous-energy isolation, lock and tag control, permits to work, testing, restoration and return to service

This section covers the Isolation application specifically. For how the interface works in general (lists, forms, navigation, deletion), see the Framework Guides above.

In This Section

• Application Overview — what the app models and why
• Quick Reference — menu map, demo codes and statuses
• System Diagram — the data model mapped, with an interactive pan/zoom viewer

The Application in One Paragraph

Isolation runs the controlling safety record for hazardous-energy work: every asset carries its energy sources, and every energy source its isolation points with a nominated isolation method and verification method; an approved isolation template turns those points into an ordered procedure; a work request raises an isolation request, whose steps are applied, locked and tagged, dissipated, then proved dead by zero-energy verification — independently verified where the template demands it; personal locks go onto a group board under a master lock, one per worker, and only that worker may remove theirs except through a formal dual-approval forced removal; permits to work are issued against the verified isolation, accepted by a recipient, and worked by signed-on workers under mandatory controls; testing is an explicit, time-boxed release of named points under a test authority, after which those points are reapplied and re-verified; and restoration is blocked until every permit is closed, every worker signed off and every personal lock removed, with a restoration checklist and area-owner authorisation before return to service. Events, audits and corrective actions close the assurance loop.

Prototype boundary. This app supports site procedures; it does not itself establish legal compliance. High-voltage switching requires site-specific procedures, competencies and controls beyond this generic prototype.