The safety, access and protection reasoning behind acceptable and unsuitable meter positions.
MET1 includes knowing where a meter may sensibly go and what makes a position unsuitable. The reasoning is about safety, access and protection.
Access comes first. The meter and, crucially, the emergency control valve must be reachable so the supply can be turned off quickly in an emergency, and so the meter can be read and maintained.
Separation from hazards matters. Meters are kept clear of heat sources and of electrical equipment and cabling, with suitable separation, because a gas fitting next to electrical apparatus or heat is an avoidable risk.
The enclosure and environment matter. Where a meter is in a box or compartment, it needs to be suitable and, where required, ventilated, and protected against damage and corrosion. Damp, unventilated or cramped spots are poor choices.
Some locations are restricted or call for extra precautions, such as routes used for escape or positions where a leak could collect. The principle is to avoid places where a gas escape would be trapped or would block a way out.
The exact siting requirements come from the current standards and depend on the meter type and installation, so treat these as the principles and confirm the specifics for the job.
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