MIL-HDBK-1027/1B
(10) Latched crawl space power enable circuit in
hand control mode (upon restoration of power after a failure,
crawl space power will be off).
3.6.5
Alarm for Loss of Electrical Power. (For all
trainers.) Provide a battery backup annunciation and alarm at
the 24-hour duty desk and the instructor's station which will
activate in the event of an electrical power outage at a
trainer. Capability to silence the alarm should be provided at
both locations.
3.7
Floors. There should be five types of floors in a
fire training device structure: a training floor, a staging
floor, a crawl space floor, a maintenance floor, equipment
floor, and a computer room floor. Consider Occupational Safety
and Health Administration (OSHA) requirements for walking
surfaces. Floors should be designed for a floor loading of
292.8 kg/sq. m except for the computer area, which should use
standard computer floor design, and the deck surrounding the
fireplace of the 19F4 and 19F4A. Additional support should be
provided by the device contractor to mount any equipment which
exceeds the indicated loading.
3.7.1
Training Floor. The training floor is the floor
inside the fire compartment that the trainees walk on. This
floor should be steel grating to give sure footing, good
distribution of ventilation air which comes from below, and
instant removal of firefighting agents. Unburned propane can be
introduced into the compartment during flame suppression;
therefore, even distribution of ventilation air is important to
dilute it and flush it away. This floor should be supported
from the crawl space floor below and the walls. Grating should
be made of mild steel and should be hot-dipped galvanized with a
maximum vertical depth of 25 mm and holes that are 19 mm by 50
mm maximum, from centerline to centerline. Benefits of high
temperature steel grating material are not cost effective in the
firefighting facilities. A nonskid surface should be provided
on the grating. Grating should be sectionalized and securely
fastened so it can easily be removed for maintenance. Two men
should be able to handle each section. Refer to par. 3.7.6 for
additional requirements for grating. The training floor should
meet the following additional criteria:
47
Previous Page
