trunk at a maximum of 2450 mm intervals. The safety net in
escape trunks should be first quality parachute nylon webbing in
accordance with BUSHIPS Dwg. 804-5184163. Webbing should have
800 kg test load and should be waterproof. Borders should have
safety snaps for attachment to wall-mounted eyelets. The net
should be fastened to the walls so it can be removed for
maintenance. Provide a 900 mm by 900 mm opening in the safety
net where the ladder passes through. Provide door in escape
trunk for access from crawl space area for maintenance. The
door should have louvers for ventilation. The escape trunk
should be provided with 950 L/s mechanical ventilation with the
supply air coming from the crawl space. Refer to par. 22.214.171.124.
Consumables. Each 19F and 21C12 series trainer was
designed to handle a specified student loading as indicated
herein. The training schedule and demand and consumption of
consumables are also indicated. When the student loading of a
proposed project differs substantially from the indicated
values, the design demand and consumption may be proportioned up
or down to suit the project.
Burner Rooms. Burner rooms should have a minimum
ceiling height of 2134 mm and a floor level with the crawl space
floor. The device contractor will provide necessary hardware
for mounting and maintaining training components away from air
intake louvers. For access into the burner room where a change
in elevation occurs, provide stairs with a landing and railing.
Obstructions. Provide obstructions where they are
indicated on the floor plan drawings in the appendices.
Obstructions should be constructed of 4.8 mm steel plate, making
a solid top and sides and having an open bottom. Obstructions
should be bolted to the floor grating from underneath in such a
way that they can be positioned anywhere in the room.
Separation Chamber and Piping Traps
a) Effluent coming from a fire training structure
should dump into a separation chamber. The primary purpose of
the chamber is to separate the propane which accumulates in the
pipe peripheral air space from the remainder of the wastewater
piping. The chamber should be open at the top or covered with a
150 mm diameter vent pipe. The inlet should be valved with a