II 2 G
II 2 D
Ex ib
Ex ib
IIB
IIIB
T4
T135°
Gb
Db
Ex ib ELECTRICAL PROTECTION CONCEPTS Standard IEC/EN Code Zone
60079-11
Ex ia Intrinsic Safety
0 20
Ex ib 1 21
Ex ic 2 22
II 2 G ATEX CODING II 2 GD
EU Explosive
atmosphere symbol
Equipment group Equipment category
I: mining M1: energised
M2: de-energised*
Gas Dust
II: non-mining
1: very high protection 0 20
2: high protection 1 21
3: normal protection 2 22
T4 / T135° TEMPERATURE CLASS T class Maximum surface temperature
T1 450°C
T2 300°C
T3 200°C
T4 135°C
T5 100°C
T6 85°C
Gb / Db EQUIPMENT PROTECTION LEVEL Equipment protection level Zone
Ga 0
Gb 1
Gc 2
Da 20
Db 21
Dc 22
Ma energised*
Mb de-energised*
IIIB DUST GROUPS Dust group Representative test dust
IIIA Combustible flyings
IIIB Non-conductive dust
IIIC Conductive dust
IIB GAS GROUPS Gas group Representative test gas
I Methane (mining only)
IIA Propane
IIB Ethylene
IIC Hydrogen
G = Gas, D = Dust, M = Mining * in presence of explosive atmosphere
* in presence of explosive atmosphere
Gases are classified according to the ignitability of gas-air mixture. Refer to IEC/EN 60079-20-1 for classification of common gases and vapors.
I P 6 7
ATEX HAZLOC ATEX HAZLOC
ZONE 0 Class I Div 1 ZONE 20 Class II Div 1
ZONE 1 Class I Div 1 ZONE 21 Class II Div 1
ZONE 2 Class I Div 2 ZONE 22 Class II Div 2
ZONE 0
ZONE 0 ZONE 1
ZONE 2
ZONE 1
For more information on ATEX and HAZLOC regulations, see www.petzl.com
Brightness (lumens) This measurement is taken between 30 and 120 seconds after the headlamp is turned on. It indicates the maximum light output when the lamp is first turned on using new batteries (included).
Burn time (hours) This is the length of time for which lighting remains optimal, from the moment the lamp is turned on until it drops to 10% of maximum light output. It then switches to reserve lighting.
Lighting distance (meters) This is the maximum distance between the lamp and the location where only 0.25 lux of illumination remains. The measurement is taken when the lamp is turned on, using new batteries. Lighting distance depends directly on brightness, but mainly on the shape of the beam.
Reserve lighting (outside of the ANSI/PLATO FL 1 protocol) In addition to these measures, Petzl offers reserve lighting. Reserve lighting provides a minimum light level to be able to move around. However, the lighting may be insufficient for certain activities (such as precision work or inspection).
Lighting Performance: How Is It Measured?
Protection against liquids
X = Not measured
0 = Not protected
1 = Protected against vertically falling water drops
2 = Protected against water drops (15° from vertical)
3 = Protected against rain (60° from vertical)
4 = Protected against splashing water
5 = Protected against water jets
6 = Protected against powerful water jets
7 = Temporary immersion (-1 meter for 30 minutes)
8 = Prolonged immersion (deeper than 1 meter for period defined by manufacturer)
9 = Prolonged immersion (deeper than 1 meter) and protection against pressure-washing
Protection against solid objects
X = Not measured
0 = Not protected
1 = Protected against projection of solids 50 mm in diameter
2 = Protected against projection of solids 12.5 mm in diameter
3 = Protected against projection of solids 2.5 mm in diameter
4 = Protected against projection of solids 1 mm in diameter
5 = Protected against dust (limited ingress, no harmful deposits)
6 = Completely protected against dust
Hazardous Areas If an explosion hazard is identified in an environment, the hazardous areas are classified as areas at risk, depending on the prevalence and type of combustible, gas or dust. All of the materials used in these zones must conform with current regulations for this type of zone (ATEX and/or HAZLOC).
Lighting performance as defined by the ANSI/PLATO FL 1 protocol Petzl has chosen to comply with the ANSI (American National Standards Institute) FL 1 protocol to measure and demonstrate the lighting performance of our headlamps. This voluntary move allows users to easily compare the lighting performance of different headlamp models using standardized criteria.
The IP Protection Index
Rating
Protection
Level of protection against solid objects
Level of protection against liquids
A headlamp s resistance to solids and/or liquids is indicated by its IP rating. This index classifies the level of protection offered by equipment against intrusions by solids (e.g. dust) and liquids (e.g. water, oil) according to the IEC 60529 standard.
Understanding the protection index
Example of ATEX zone (gas type combustible)
Example: DUO Z1
How to read an ATEX marking
Classification of ATEX / HAZLOC zones
Explosive Atmosphere Gas Type Combustible Dust Type Combustible
Permanent or Long-Term
Occasional
Accidental
Environments and Standards