Thorn - Product Catalogue - 2014/2015

564 / 578

564
Luminaires not suitable
for direct mounting on normally
flammable surfaces (i.e. suitable only
for mounting on non-combustible
surfaces)
Note. Previously luminaires suitable
for mounting on normally combustible
surfaces displayed the F mark. This
has been replaced by this warning
symbol.
Ta classification
Denotes the maximum ambient
temperature in which the luminaire is
suitable for use. No ta mark indicates
suitable for use in max. 25˚C
ambients.
850° hot wire
Abbreviation for compliance with
glow wire test for plastic parts tested
at the stated temperature.
Safety Classifications
The following provides an
explanation of some of the most
common classifications applied to
luminaires:
Class I
Luminaires in this class are electrically
insulated and provided with a
connection to earth. Exposed metal
parts that could become live in the
event of basic insulation failure are
protected by earthing.
Class II
Class II luminaires are designed and
constructed so that protection against
electric shock does not rely on basic
insulation only. This can be achieved
by means of reinforced or double
insulation. No provision for earthing
is provided.
Class III
Protection against electric shock
relies on supply at Safety Extra - Low
Voltage (SELV) and in which voltages
higher than those of SELV are not
generated (max.50V ac rms).
Luminaires not suitable for
covering with thermally insulating
material
Note. Previously luminaires suitable
for covering with thermally insulating
material displayed the F mark. This
has been replaced by this warning
symbol.
Safety and Quality
Standards
Emergency Lighting
Emergency lighting is provided when
the supply to the mains lighting fails.
It helps people avoid panic, restores
their confidence and guides them
quickly and safely out of the building.
Thorn Lighting offers a wide range
of emergency lighting luminaires.
These may be integrated standard
luminaires or separate
dedicated emergency units.
Thorn luminaires are supplied
complete with electronic gear for
d.c.operation, white fluorescent tubes
and nickel cadmium batteries (unless
otherwise stated).
A test record card is included so that
a maintenance programme can be
followed in accordance with the
Code of Practice BS 5266.
IK rating IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10
Impact Energy
(Joules) 0.15J 0.23J 0.35J 0.5J 0.7J 1J 2J 5J 10J 20J
3Authentic Emergency Product
Subject British
Standard
European
Standard
International
Standard
Luminaires - Safety BS EN 60598 EN 60598 IEC 60598
Luminaire Track Systems - Safety BS EN 60570 EN 60570 IEC 60570
Luminaires - Performance (General) DD IEC PAS
62772-1 No Standard IEC PAS 62772-1
Luminaires - Performance (LED) DD IEC PAS
62772-2-1
No Standard IEC PAS 62772-2-1
Luminaires - IK Code (Impact Resistance) BS EN 62262 EN 62262 IEC 62262 +
IEC/TR 62696
EMC Emissions - Lighting BS EN 50015 EN 55015 CISPR 15
EMC Immunity - Lighting BS EN 61547 EN 61547 IEC 61547
EMC Harmonic - Currents BS EN 61000-3-2 EN 61000-3-2 IEC 61000-3-2
EMC Voltage Fluctuation/Flicker BS EN 61000-3-3 EN61000-3-3 IEC 61000-3-3
EMF - Lighting Equipment BS EN 62493 EN 62493 IEC 62493
Photo-biological Safety - Lamps BS EN 62471 EN 62471 IEC 62471
Control Gear - Safety BS EN 61347 EN 61347 IEC 61347
LED Modules - Safety BS EN 62031 EN 62031 IEC 62031
LED Modules - Performance DD IEC PAS 62717 No Standard IEC PAS 62717
Fluorescent Lamps - Safety BS EN 60081/
BS EN 61199
EN 60081/
EN 61199
IEC 60081/
IEC 61199
HID Lamps - Safety BS EN 62035 EN 62035 IEC 62035
Quality Management Systems BS EN ISO 9001 EN ISO 9001 ISO 9001
Environmental Management Systems BS EN ISO 14001 EN ISO 14001 ISO 14001
Code of Practice - Emergency Lighting
BS 5266/
BS EN 1838 EN 1838
Photometric Measurements/Data BS EN 13032 EN13032 CIE 121
Lighting Columns BS 5649 EN 40
Standards
Some of the relevant British Standards, together with their European and
International equivalents, relating to lighting are listed in the table.
Ingress Protection
The ingress protection (IP) code denotes the protection against dust, solid
objects and moisture provided by the luminaire enclosure.
If no code is marked the luminaire is deemed to be IP20.
Ingress protection (IP) code
i) First digit of code denotes protection against dust and solid objects
IP2X No entry of standard test finger to live parts
IP3X No entry of 2.5mm ø probe to the enclosure/live parts
IP4X No entry of 1mm ø probe to the enclosure/live parts
IP5X Dust proof. (no dust deposit around live parts)
IP6X Dust tight (no dust entry)
ii) Second digit of code denotes protection against moisture
IPX0 No special protection
IPX1 Protection against drops of condensed water
IPX2 Drip-proof (vertical falling drops of liquid)
IPX3 Rain-proof (rain up to angles of 60˚)
IPX4 Splash proof (spray from any angle)
IPX5 Water jet
IPX6 Strong Water jet
IPX7 Temporary immersion up to 1m
IPX8 Long-term immersion to declared depth
Impact Resistance
The use of Joules (Newton metres - Nm) has been common for many years.
More recently an IK rating normally used for electrical enclosures and cabinets
(EN 50102:1995) has emerged as manufacturers apply it to their luminaires,
as they also enclose electrical circuits. This chart compares both ratings:
All Thorn emergency products carry
a tamper-evident holographic
security label, on both the product
and the outer carton. This gives the
customer a guarantee of an authentic
Thorn emergency lighting product.