_Class A.--Stationary Automatic Apparatus._
1. FOUNDATIONS.--(_a_) Must, where practicable, be of brick, stone,
concrete or iron. If necessarily of wood they shall be extra heavy,
located in a dry place and open to the circulation of air.
The ordinary board platform is not satisfactory. Wooden foundations shall
be of heavy planking, joists or timbers, arranged so that the air will
circulate around them so as to form a firm base.
(_b_) Must be so arranged that the machine will be level and unequal
strain will not be placed on the generator or connexions.
2. LOCATION.--(_a_) Generators, especially in closely built up
districts should preferably be placed outside of insured buildings in
generator houses constructed and located in compliance with Rule 9.
(_b_) Generators must be so placed that the operating mechanism will
have room for free and full play and can be adjusted without artificial
light. They must not be subject to interference by children or careless
persons, and if for this purpose further enclosure is necessary, it must
be furnished by means of slatted partitions permitting the free
circulation of air.
(_c_) Generators which from their construction are rendered
inoperative during the process of recharging must be so located that they
can be recharged without the aid of artificial light.
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