4.8 Weather Protection
It is recommended to place a hood or shield above the flame detector to protect it from sunlight, rain and snow. A stainless steel
metal plate of approximately 30 x 30 cm (12 x 12 in) can be mounted directly above the flame detector without inhibiting its field
of view. A similar plate can be used to shield it from potential false alarm sources such as smoke-stack flares.
4.9 Hot Work
Flame Detectors may alarm in the presence of hot work, for example a welding operation, and this must be taken into
account when doing Hot Work risk assessments and when issuing Hot Work permits.
Usually it is sufficient to inhibit or isolate the alarm system in that area and substitute a ‘Fire Marshall’ or safety man armed with
an appropriate fire extinguisher.
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