← All services

SL-07

DSEAR & Hazardous Substance Assessments

DSEAR 2002 assessments for railway-sector environments with dangerous substances or potentially explosive atmospheres — battery rooms, fuel storage, traction substation transformer halls, gas-cylinder storage.

The Dangerous Substances and Explosive Atmospheres Regulations 2002 apply across multiple railway-sector contexts: traction battery rooms in stations, fuel storage at depots, dielectric fluid in traction substation transformer halls, oxy-acetylene and other compressed-gas cylinders in maintenance facilities, dust-explosion hazards in some maintenance environments, and any standby-power diesel installation.

JWCS delivers DSEAR Risk Assessments scoped per substance rather than the catch-all asset-wide approach that often misses substance-specific control gaps. Hazardous Area Classification (where applicable under BS EN 60079-10 series) is delivered as a drawing-based output with the zone schedule traceable to the source data.

The DSEAR assessment is integrated with the asset’s Fire Risk Assessment under RRO 2005, so the two duties are discharged coherently and the substance-specific control measures land in the unified action plan.

Typical deliverables

  • DSEAR Risk Assessment report
  • Hazardous Area Classification drawings / data
  • Ignition source register and control measures
  • Emergency arrangements specific to the substance
  • Integration with the asset-wide Fire Risk Assessment

Applicable standards

DSEAR 2002L138 (DSEAR ACOP)BS EN 60079-10-1 / -10-2 (hazardous area classification)HSG176 (storage of flammable liquids)IP 19 (electrical safe areas — petroleum industry analogue)

Lifecycle stages

Scoped per asset / per substance. Recurring review on substance change, regulatory update, or material asset modification.

Discuss this service

Direct line to the engineer delivering the work.

Contact