Engineering, 22.10.2020 16:01 juana18

A suitable guard shall be provided whenever a terminal or air inlet of any room sealed fanned draught chimney configuration is fitted less than:
a) 1.0 m above the ground.
b) 2.0 m above the ground.
c) 2,5 m above the ground.
c) 3.0 m above the ground.

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