Electric.ie Magazine Nov/Dec 2016

7 / 68

• The Magazine & Website for the Irish Electrical Industry • 5
Demesne Electrical
Are you using LSF or LSHF Cables On Site?
If the answer to the above
question is YES, then you
should consider protecting those
cables with an LSHF Flexible
Conduit.
The move to LSF/LSHF/LS0H cables
has come about due to demand
for safety in public areas, such as
hospitals, schools, train stations
and on public transport. The risk
of poisonous fumes and thick black
smoke can be a greater risk to lives
–Šƒ –Šƒ– ‘ˆ Ƥ”‡ ƒŽ‘‡Ǥ
LSF stands for Low Smoke Fumes -
in regard to control, signal and data
cables, LSF cables and conduits are
ƒ†‡ ˆ”‘ ƒ ‘†‹Ƥ‡† ˜‡”•‹‘ ‘ˆ
Ǥ
These LSF cables/conduits can
•–‹ŽŽ ‰‹˜‡ ‘ơ Žƒ”‰‡ ƒ† †ƒ‰‡”‘—•
amounts of thick black smoke along
with hydrogen chloride gas when
burned.
Black smoke can obscure emergency
exits and hydrogen chloride can
be deadly to people who come into
contact with it.
LSHF stands for Low Smoke
Halogen Free, while LS0H stands
for Low Smoke Zero Halogen. When
these cables or conduits are exposed
–‘ Ƥ”‡ǡ –Š‡› ‡‹– ‘ ‘”‡ –Šƒ ͜Ǥ͡τ
hydrogen chloride.
Clause 527 of the National Wiring
Rules deals with selection and
erection of wiring systems to
‹‹‹•‡ –Š‡ •’”‡ƒ† ‘ˆ Ƥ”‡Ǥ Š‹•
encompasses conduits/trunkings.
Cables must comply with I.S 201 and
conduits/trunkings must comply
with EN 50086-1 for conduits or EN
50085-1 for trunkings.
Nothing in the regulations states
that LSHF or LS0H conduits MUST
be used in public buildings or
where LSF/LSHF cables are being
installed, however, it makes sense
that halogen free cables should be
safely protected.
With this in mind, Demesne
Ž‡ –”‹ ƒŽ ƒ”‡ –Š‡ Ƥ”•– ‡Ž‡ –”‹ ƒŽ
distributor in Ireland to import
a complete range of Low Smoke
Halogen Free Flexible Conduit and
Glands to suit.
–‡”ƪ‡š Ž‡š‹„Ž‡ ‘†—‹–•
Š‡ –‡”ƪ‡š ”ƒ‰‡ ‹• †‡•‹‰‡†
for insulation, mechanical
protection and environmental
preservation of cables in the
electrical installation of machinery,
industrial equipment and
telecommunications.
Ȉ ƒ†‡ ‘ˆ •’‡ ‹ƒŽŽ› ‘†‹Ƥ‡†
’‘Ž›ƒ‹†‡ ȋ ͢Ȍ
Ȉ ’‡ ‹ƒŽ ’ƒ–‡–‡† ’”‘ƤŽ‡ȝ ˆ‘”
housing the O-ring sealing to
’”‘˜‹†‡ ƒ Š‹‰Š‡” ’”‘–‡ –‹‘
• Free of halogen, phosphorus and
cadmium
Ȉ ‡ŽˆǦ‡š–‹‰—‹•Š‹‰ ȋ ͞ ƒ Ǥ –‘
ͥ͠Ȍ
• Temperature range: -40ºC to
φ͙͜͝͡ ȋ͙͜͝͡ •Š‘”– –‡”Ȍ
Ȉ ”‡•‹•–ƒ– ȋ„Žƒ  ‘Ž‘—”Ȍ
• Colours: Black ex stock Demesne
and grey available on request.
Š‡ –‡”ƪ‡š ‹‘˜ƒ–‹˜‡ ’ƒ–‡–‡†
system stands out from existing
ones through three exclusive
†‹ơ‡”‡–‹ƒŽ Šƒ”ƒ –‡”‹•–‹ •ǣ
1- High traction resistance (for extra
ƒˆ‡–›Ȍ —” ‘‡ –‘”•
hold the corrugated conduit all
around its entire perimeter. This
allows a better distribution of the
tensile forces and thus an increase
of the installation safety.
2- ͢͢ –‘ ͤ͢Ȁ ͥ͢ ”‘–‡ –‹‘
with a single connector. The
–‡”ƪ‡š •›•–‡ ƒŽŽ‘™• –Š”‡‡ ™ƒ–‡”
tightness levels with the same
connector, by simply adding the
ͤ͢ ƒ† ͥ͢ ’”‘–‡ –‹‘ Ǧ”‹‰
on the last groove of the conduit’s
•’‡ ‹ƒŽ ’ƒ–‡–‡† ’”‘ƤŽ‡ ƒ† ƒ
sealing washer at the base of the
‘‡ –‘”Ǥ Š‹• Šƒ”ƒ –‡”‹•–‹ ‘ơ‡”•
—’ –‘ ƒ ͥ͢ ’”‘–‡ –‹‘ ƒ– ƒ Ž‘™
cost.
3- Quick and easy assembly and
removal of the conduit. Our
‘‡ –‘”• ƒŽ•‘ ‘ơ‡” ƒ “—‹ 
assembly and removal of the
conduit thanks to the unique «easy-
click» system. With a light manual
pressure over unlocking push-
ring the conduit is easily removed
without need of any tool.
To register your interest in our
range of LSHF Flexible Conduit
please send an email to
or call us on 01-4047700