(c) Ground Connections.
(See Chap. 2-2, para. C)
b. Revetment Construction
(1) General. The generator sets are designed
to be operated in the open, with unrestricted ven-
tilation. In some situations, however, it may be
necessary to operate the equipment under the pro-
tection of a revetment. This subparagraph provides
information on the major details applicable to the
construction of a revetment, should it be necessary.
(a) The minimum inside dimensions and
height are shown by figures 4-1 and 4-2.
(b) The entrance of the revetment, shown
by figure 4-3 should be 0.6 meter (2.0 feet) wide with
a sill at the bottom not higher than 0.3 meter (1.0
foot). The minimum dimensions given here are
based solely on considerations applicable to engine
cooling and ventilation, with an allowance made for
the minimum practicable space for service and