the second rescue harness and secure it. Now put on the rescue harness of the descent rope (see
picture 4 and 5).
Caution:
Please follow the instructions of use of the rescue harness or the fall arrest
harness.
Pull at the long descent rope hanging down until a taut connection between the descender device
and the rescue harness has been established (see picture 6). Turn your face to the wall and start
the descent (see pictures 7 and 8). When you reach the ground, take off the rescue harness but
leave it on the rope (see picture 9). The other end of the descent rope with the rescue harness
attached is now again at the upper descent point and the third person can pull the harness towards
himself. This person has to leave it attached to the karabiner hook of the descent rope and put it on.
(see pictures 4 and 5). Now pull at the long descent rope until a taut connection between the
descender device and the rescue harness is established (see picture 6). Turn your face to the wall
and start the descent (see pictures 7 and 8). When you reach the ground, take off the rescue
harness but leave it on the rope (see picture 9). Any other persons can descend in the same way as
person 3 one after another.
4.2 Inclined descent oft the casualty (see picture 10)
When descending, due to fire or similar, from high constructions like multi-storey buildings, drilling
derricks, chemical plants, etc., the direct and vertical descending can be prevented by projections,
flames, inaccessible ground areas or wind conditions. In such cases, a precautionary installed or
quickly installable steel rope (4), running diagonally downwards to a favourable landing point, can
significantly simplify the descent. The preferable configuration is two steel wire ropes (4) running at
an inclination of 30° - 45° from an upper anchorage point (1) to two lower anchorage points (8) with
a spacing of approximately 4 metres. The wire diameter should be 8-12 mm. These steel wire ropes
serve as suspension and anchorage ropes during the descent. Connected to each suspension rope
(4) is a descending harness (5) that is permanently connected to the rope (6) (7) of the descender
device via a swivel (5). At the upper anchorage point, the users of the descending system hook the
carabiner of the descending harness (5) to the front eye of their full-body harness. It must be
ensured that the slide shoe of the descending harness fully encloses the suspension rope.
The descending rope (7) is tensioned by pulling on the ascending rope (6), the body weight is then
transferred to the suspension rope. During the descent from the upper anchorage point to the lower
landing point, the RG10 D descender device automatically regulates the descending speed.
If a descending brake is used, hold the brake open with 1-2 turns of the handle. Only brake the
descent with the descending brake by turning to the closed position in the case of excessive speed.
Open the descending brake after having reached the landing point in order to not prevent further
descending.
Unhook the carabiner.
The other descending harness is pulled up to the starting position by the upwards running rope (6)
during the descent and is ready for use for the next descent.
A large number of persons can be evacuated within a short period of time with this system.
If the system is only needed for an emergency and not used for training purposes, we recommend
that the ascending rope (6) be coiled up training and the coiled up rope, the RG10 D descender
device (3) and the descending harness be stored at the descending start point moisture-protected
in a suitable packaging.
The RG 10 D is equipped with a Ø 5 mm special steel rope.
Other suitable transport equipment like stretchers or baskets that make the rescue of injured or
disabled persons or children possible can also be connected to the descending harness in special
emergency cases.
The anchorage point for the RG 10 D descender device must have a minimum strength of 10 kN
as per EN 795.
The minimum strength of the anchorage points for the inclined steel suspension ropes are shown in
table 1.
Rope length (m)
Tab.1
Sag (m)
30
1.2
60
2.4
100
4
150
6
200
8
Strength (kN) Pre-tension (kN)
12
13
13
13
14
0.6
1
2
3
4