Means of access and egress

Pages:5-7
CHAPTER II
MEANS OF ACCESS AND EGRESS
REGULATION 3. GENERAL PROVISIONS
1.
Except for the duration of shaft sinking and the necessary
development operations, and unless national laws or regulations
provide otherwise for special cases, from all sections or districts
underground there shall be accessible at all times two separate
adequately travellable means of egress.
2.
In all new installations the two means of egress to the
surface shall
fa) be of sufficient cross-sectional area throughout;
(b) be separated by sufficient thickness of strata; and
(c) not have their surface openings in the same building.
3.
In mines in which the two means of egress are shafts in
close proximity one to the other, these shafts shall both be sunk
to the lowest level in operation, unless other safe means of egress
are provided to the satisfaction of the competent authority.
4.
Both means of egress shall be kept in a safe condition for
easy travelling.
5.
In all mines employing more than a certain number of
men to be specified in national laws or regulations, shafts or other
inclined outlets shall be provided with adequate transport equip-
ment that is suitable for the conveyance of persons and is constantly
maintained in safe working order.
6. In new installations all practicable precautions shall be
taken to ensure that, where the only means of egress are winding
shafts,
the two winding engines do not fail simultaneously and
in particular
(a) in the case of steam winding engines, the boilers supplying
the steam shall not be in the same boiler house; and
(b) in the case of electric winding engines, the engines shall be
capable of being connected to two separate power supplies:
Provided that the requirements under (a) and (b) shall not
apply where emergency winding gear is available or where ladder-

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