Technical reference for fire risk assessors, fire detection & alarm technicians and other fire safety engineers — covering site surveys, design, installation, maintenance, commissioning, false alarm investigation and many tools for better compliance.
Calculators
Battery capacity, loop voltage drop & detector spacing
New Certificate
Commissioning, compliance, variation & inspection forms
Fault Finder
Step-by-step diagnostics & real-world fault knowledge base
Standards
BS 5839-1:2025 servicing, cabling, spacing & commissioning rules
All guidance on this page is for reference purposes only. Always work to the current published edition of the relevant British Standard, manufacturer technical data sheets, and the specific fire strategy for the premises. Standards are updated periodically — verify the current edition before use.
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