Intent 1:
To supersede the requirements of Sentence 3.4.6.15.(1), which would otherwise require certain measures,
and permit electrically powered revolving doors if certain conditions
are met.
This is to limit the probability that:
- [Clauses 3.4.6.15.(3)(a) et (b)] use of the doorway
in an emergency situation will lead to congestion or the buildup of
persons at the doorway, which could lead to:
- persons being crushed, which could lead to harm to persons,
and
- delays in the evacuation or movement of persons to a
safe place, which could lead to harm to persons,
- [Clause 3.4.6.15.(3)(d)] persons will not be familiar
with the method of door opening in an emergency situation, which could
lead to delays in the evacuation or movement of persons to a safe
place, which could lead to harm to persons, and
- [Clause 3.4.6.15.(3)(e)] glass used in the construction
of the doors will not meet proper standards, which could lead to the
glass not performing in the way intended in a normal use situation,
which could lead to failure of the glass [e.g. breaking or splintering],
which could lead to harm to persons.