burning such kind materials,
produce corrosive and toxic gases but only water
vapour and carbondioxide. Due this effect and in
case the released molecules constituents
chlorine and uorine, which hinder the admittance
of oxygen the location and suffocate the ame.
• Fire warning plants, alarm systems, ventilation
systems, escalators, lifts, safety lights, operation and
intensive stations, maintenance equipment
• Underground railways and other railway plants
• Data processing installations
• Power stations and industrial plants with high valuable
machines and materials risky potentials
• Mining works
• Shipbuilding and offshore plants
• Emergency power supply works
HELUKABEL-Security Cables and
Wires and the advantages
• Flame retardant and hardly combustibility that no
ame propagation case can resulted
• Halogen-free evolution corrosive gases
• case burning, the halogen-free cables emits
low smokeG
HALOGEN-FREE SECURITY CABLES AND WIRES
.
Application
The application halogen-free security cables and wires
are speci more and more with increasing
numbers for the buildings where people gather or
everywhere, where safety conciousness protect
the human life and valuable materials take special
signi cance.
Halogen-free cables contain halogens, the
insulation and sheath materials these cables are
composed with polymers the basis pure
hydrocarbons.
Polytetra uorethylene (PTFE)
Fluorethylenepropylene (FEP)
Per uoralkoxypolymeric (PFA)
These materials have better behaviour case re. This happens
by using the special polymer compounds, containing the
considerable percentage ame protective materials.1106
What are halogens?
Halogens “formation salt“ are the elements as
uorine, chlorine, bromine and iodine.
Such kind protective materials consist for example, of
an aluminium hydroxide which one side cools the re
location setting free crystal water and the other
side the released water vapour hinders the admittance of
oxygen and thereby this suffocates the ame.
The remarkable disadvantages these materials are
existing the fact that the released chlorine and orine
atoms composite themselves with hydrogen which
is decomposed from plastic material well with
hydraulic acid hydro oric acid from the existing air.
When cable halogen-free ?
The burning behaviour cables and wires very
important for the installation buildings and also
in control plants.
Fluorine and chlorine are important for cables and
wires atoms the plastic molecules, for example
uorine plastics PVC (polyvinyl chloride) are of
signi cance and bromine component ame
protection additives.
These are hardly combustible not ammable and
vastly self-extinguishing.
Thereby the following points are very important:
• Behaviour under ame uence the
in ammability well the propagation re
• Subsequent damage formation corrosive
and toxic gases
• Development smoke density (darkening of
emergency exits hindered the extinguishing
works)
Cables produced not halogen-free (halogenated)
materials such mainly the materials with chlorine
in the molecule-chain: Polyvinyl chloride (PVC),
chloroprene rubber (CR), chlorinated polyethylene (CM),
chlorsulfonated polyethylene (CSM) and uorhydro-
carbons. For example,
• Hospitals, airports, multi-storey buildings, stores
and shops, hotels, theaters, cinemas, schools etc. These materials are easy ammable and
not self-extinguishing. consequence the damages corrosion are often
higher than the actual damage caused re.
Halogen-free cables for the security requirements must be
hardly ammable and self-extinguishing. using of
additional supporting tapes and lling yarns glass
web, mica and similar materials the functionallity for
example can realised with the suitable
cable accessories.
These compositions are extremely corrosive and also
toxic.
Polymers like polyethelene (PE) polypropylene (PP) are
halogen-free
