In the interest of gas safety in commercial kitchens and of kitchen staff in the UK, certain safety regulations and standards have been introduced to secure the minimum expected working conditions for kitchen operators.
Regulation 27(4) "(4) No person shall install a power operated flue system for a gas appliance unless it safely prevents the operation of the appliance if the draught fails."
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Official HSE guidance "181 An interlock should be provided which will cut off the gas supply if the draught falls below a pre-set minimum standard for safe operation of the appliance, and prevent the gas supply being re-established unless safe to do so. The advice of the appliance/flue system manufacturer should be sought, as necessary, in respect of interlock design requirements and reference should be made to appropriate standards, e.g. concerning provision of manual reset facilities and interlocks with flame proving devices. See also regulation 32 and associated ACOP/guidance concerning flue dampers."
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