Checklist

Acceptance of the thermal barrier in a battery energy storage system — 12 inspection points

This checklist takes you through the acceptance walkdown in twelve inspection points once the thermal barrier has been installed in a battery energy storage system. You check barrier layers, joints, penetrations, fixings and documentation before the installation is put into service.

6 min.Last updated: 2026-08-24

Checklist

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Anton Brem

Managing Director

Refractory construction, high-temperature insulation and fire protection in industrial plants

Sources & standards

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Acceptance of the thermal barrier in a battery energy storage system — 12 inspection points

Checklist

Compile the proofs of fitness for use before the walkdown

Compare as-built against the fire safety concept

Open sample areas to verify layer build-up and material thickness

Check butt joints and gaps in the barrier layers

Inspect connections to adjoining components

Record and assess every penetration individually

Have residual and temporary openings closed

Check fixings, supporting structure and fasteners

Check the barrier between modules and racks for completeness

Confirm separation from other occupancies and adjacent areas

Check the labelling of every penetration seal

Hand over the acceptance report, declaration of conformity and penetration seal register

Sources & standards

Related guides

Thermal Barriers in Battery Energy Storage: Refractory Materials Against Thermal Runaway

Container Lining in Execution: Fixings, Joints, Penetrations

Maintaining and Inspecting Thermal Barriers in Operation: Intervals, Checkpoints, Documentation

Planning a project?