HSE HSG253 — The safe isolation of plant and equipment (2nd edition, 2006)

Provisions the documents cite: whole guidance — isolation, lock-off, proving, permit interface for process and mechanical plant

What it requires

Guidance on isolating plant and equipment from sources of energy and substances — mechanical, hydraulic, pneumatic, stored energy, substances under pressure — proving the isolation, securing it with locks and tags, and the interface with permit-to-work.

How this entry is kept current

• Citation status: carried from drafting; a source check is in the monthly scan queue.
• Watched by: HSE publication page check each scan.
• Automated scan: no public page to watch; checked by hand in the monthly review.

Every source is re-checked monthly and the result is published in the scan log. A change that alters what a document should say raises a revision, and past buyers of that document are told.

The 11 documents that cite it

Every KubitDocs document prints its statutory basis on the form itself, so the person signing can verify the citation rather than take our word for it.

Demolition and strip-out quality checklists

• Pre-Strip Survey and Services Isolation — Quality Inspection Checklist
• Salvage, Retained Items and Protection — Quality Inspection Checklist
• Strip-Out Complete — Area Handover — Quality Inspection Checklist
• Structural Protection and Propping in Place — Quality Inspection Checklist

Extended permits

• Mechanical Isolation and Lock-Off Certificate

Healthcare estates

• Critical Ventilation Isolation and Reinstatement Record
• Medical Gas Pipeline Systems Permit to Work

Mechanical, Plumbing & HVAC topic RAMS

• Pressure Vessel Isolation and Depressurisation

Site forms

• Services Isolation Register

Toolbox talks

• Toolbox Talk — Hot Surfaces, Steam and Pressure — Live Until Proved Not
• Toolbox Talk — Permits to Work — What the Piece of Paper Is For