Rise System Assure Optimized Fire Safety on Board

For ducting and sealing and pipes on board the advanced naval vessel R
V Triton, large-scale use is to be made of the RISE system from Beele
Engineering B V at Aalten, the Netherlands*),and of plugs from CSD Int
ernational.
RISE(Rubber Insert Sleeves Expanding)is a firesafe ducting and sealing
system which has been specifically developed for the fire-resistant a
nd smoking-tight ducting of multiple cables and/or pipes through bulkh
eads and decks.
Construction of the RV Triton by Vosper Thomycroft has been commission
ed by the Defence Evaluation and Research Agency(DERA) of the British
Ministry of Defence. This trimaran craft,construction of which has al
ready started is regarded as the naval vessel of the 21st century. Wit
h its length of 97metres and beam of 22.5 metres, the vessel will be t
he world’s largest moter-powered trimaran. The design includes a larg
e landing deck capable of accommodating helicopters or unmanned aircra
ft. Further features on board the vessel include two laboratories and
a comprehensive instrumentation system. This system is used to collect
data from all parts of the vessel on a continuous basis.
It goes without saying that fire prevention on board this ultramodern
naval vessel is also based on the application of innovative systems. T
he RISE system from Beele Engineering is an example of this.
Fire tests conducted in accordance with IMO(International Maritime O
rganization) Resolution A.754(18) show that RISE cable and pipe pen
etrations exceed the requirements of the A60 norm. The system is certi
fied by the American Bureau of Shipping, Lloyd’s Register of Shipping
, Bureau Veritas, Det Norske Veritas, the Korean Register of Shipping,
Transport Canada, the US Coast Guard, the UK Marine Coastguard Agency
, the Netherlands Shipping Inspectorate, Registre Italiano Navale and
Germanischer Lloyd.
The RISE system and CSD plugs were approved by the UK Ministry of Defe
nce on the basis of tests relating to their toxicity , aging process,
surface flame propagation, and oxygen and smoke index.
The RISE system combines optimized fire resistance with convenience an
d speed of use. The short of installation times are due to the system
design, which features firesafe protective sleeves which are split le
ngthwise and are simply placed around cables. Once the cables to be du
cted have been wrapped in this way, the remaining space is packed with
loose filler sleeves. The protective sleeves are about 4cm shorter th
an the length of the penetration. The penetration is then closed off
at each side with a 2 cm thick layer of firesafe FIWA putty.
When heated or exposed to fire, RISE sleeves expand to approximately f
ive to ten times their original volume. The mass of rubber foam which
is formed as a result assures total sealing and protection against fi
re, heat, and toxic and corrosive gases. FIWA putty is both water-repe
llent and gas-tight, and provides a water-tight seal. The putty gives
a level of water-tightness corresponding to 2.5 bar. Also, FIWA putty
expands when exposed to flames or fire.
Should additional cables be required at a later stage, the RISE system
allows for them to be installed with the greatest of ease by cutting
away the FIWA putty at each side of the penetration. This enables the
new cable to be passed through the resultant opening, after which the
penetration is re-closed at both sides with FIWA putty or with FRR/HF
blind profiles.
CSD plugs, which are used on a large scale on board the RV Triton, ass
ure the gas- and water-tight and firesafe ducting of steel, copper and
aluminium cables and pipes through bulkheads and decks.
CSD sealing plugs are made from firesafe FRR fubber and consist of two
identical parts. These parts are serrated on the outside and ridged o
n the inside CSD sealing plugs possess a sealing power of 2 bar excess
pressure at the rear of the plug. Considerably higher excess pressure
s on the flanged side have been measured in pressure tests. Trials hav
e shown that the sealing power is retained for an extended period, and
that it is not degraded by vibration.