Codifica ATEX

Per soddisfare esattamente i requisiti della Direttiva ATEX 2014/34/UE, le torce Peli sono testate per assicurare che non siano a rischio di infiammabilità quando si opera in ambienti rischiosi. Utilizzando appositi laboratori, le torce sono testate per assicurare che esse possano superare rigorosi test di urto e caduta, esposizioni ad ambienti ostili e che soddisfino almeno il livello di protezione IP54 contro l'ingresso di acqua e polvere. Longevità e sicurezza sono assicurate dalla progettazione. Le torce con omologazioni relative al gas non richiedono test dell'impatto e l'omologazione relativa al gas richiede unicamente IPX4 (non il test di resistenza alle polveri IP5X. L'approvazione per le polveri richiede il test di resistenza alle polveri IP6X).

Ogni torcia certificata da ATEX dovrebbe avere un codice stampato sul proprio corpo. Questo codice avvisa gli utenti in quale zona la torcia può essere utilizzata in sicurezza senza rischio di esplosione.

Marcatura ATEX per le miniere

I M1 Ex ia I Ma
I Equipment Group Approved for mining
MI
MII		 Equipment Category and Environment 2 levels of protection/2 independent faults
1 level of protection/based on normal operation
Ex Specific Marking Explosion protection
ia/ib Type of protection Intrinisic safety level of the device in Zone 0/1
I * Gas Group Methane
Ma/Mb Equipment Protection Level High, safe with 2 faults/high, safe with 1 fault

Marcatura ATEX per il gas

II 1G Ex ia IIC T4 Ga
I
II		 Equipment Group Approved for mining
No mining
1G
2G
3G		 Equipment Category and Environment Category 1, use in Zone 0/1/2
Category 2, use in Zone 1/2
Category 3, use in Zone 2
Ex Specific Marking Explosion protection
ia/ib/ic Type of protection Intrinisic safety level of the device in Zone 0/1/2
IIA
IIB
IIC		 * Gas Group i.e. Propane
i.e. Ethylene
i.e. Hydrogen
T1/T2/T3
T4/T5/T6		 * Temperature Class Maximum surface temperature of 450°C/300°C/200°C
Maximum surface temperature of 135°C/100°C/85°C
Ga/Gb/Gc Equipment Protection Level High, safe with 2 faults/high, safe with 1 fault

Marcatura ATEX per le polveri

II 1D Ex ia IIIC T130°C Da
I
II		 Equipment Group Approved for mining
No mining
1G
2G
3G		 Equipment Category and Environment Category 1, use in Zone 0/1/2
Category 2, use in Zone 1/2
Category 3, use in Zone 2
Ex Specific Marking Explosion protection
ia/ib/ic Type of protection Intrinisic safety level of the device in Zone 0/1/2
IIA
IIB
IIC		 * Dust Group i.e. Flammable Fibres
i.e. Non conductive dust
i.e. Conductive dust
T * Temperature Class Maximum surface temperature level is to be indicated
Da/Db/Dc Equipment Protection Level High, safe with 2 faults/high, safe with 1 fault

* Classe di temperatura

Temperature Class Ignition Temperature Examples
T1 ≥ 450 °C Propane, lighting gas, hydrogend
T2 ≥ 300 °C Ethyl alcohol, Ethylene, Acetylene
T3 ≥ 200 °C Fuel
T4 ≥ 135 °C Acetaldehyde
T5 ≥ 100 °C Hydroxylamine
T6 ≥ 85 °C Carbon disulfide

- La temperatura di auto-ignizione è la temperatura in C a cui un gas si accende spontaneamente senza un'altra fonte di ignizione

- Dal momento che NON vi sono correlazioni tra energia di ignizione e temperatura di ignizione per i raggruppamenti del gas, è stato determinato un codice di temperatura

- La Classe di temperatura si basa sull'uso a una temperatura ambiente di -20/40 C. Se la temperatura ambiente differisce da tale range, è necessario indicarlo.

* Gas Group

Gas Group Minimum Ignition Energy Selection of Equipment
I 200 µJ For mines susceptible to methane
IIA
IIB
IIC		 180 µJ+
60 - 180 µJ
20 - 60 µJ		 Atmospheres containing propane/butane/oil/ammonia

Atmosphere containing ethylene/ether

Atmosphere containing hydrogen/acetylene

- Gases are divided into two groups based on the LEL and UEL values.

* Dust Group

Dust Group Substance Selection of Equipment Examples
IIIA Flammable fibers > 0,5mm Explosive surface > 1000 hrs/yr Wood shaving
IIIB Non-conductive dust with electrical resistivity > 103 Ωm Explosive surface between 10 and 1000 hrs/yr Saw dust, flour
IIIC Conductive dust with electrical resistivity ≤ 103 Ωm Explosive surface between 10 and 10 hrs/yr Metal dust

- Dust areas are defined as group III and refers to equipment intended for use in spaces with an explosive dust atmosphere other than mines susceptible to firedamp.

Maximum Surface Temperature

Group III electrical equipment is marked with a temperature with ‘T’ prefix detailing the actual maximum temperature that may be found on any surface accessible by a potentially explosive dust atmosphere. Ignition temperature of a specific dust hazard must be higher than maximum surface temperature displayed on electrical equipment.

Ignition Temperatures for Common Combustible Dusts

Dust Type Dust Group Dust Layer (5mm)
Minimum Ignition Temperature (°C)		 Dust Cloud (5mm)
Minimum Ignition Temperature (°C)
Aluminum IIIC 450 560
Blasting Dust (Paint Shreds) IIIB 270 390
Coal IIIB 380 560
Flour (Wheat) IIIB 450 430
Grain IIIA 290 490
Iron Powder IIIC 450 520
Paper Fibre IIIA 335 470
PVC IIIB 440 680
Resin (Epoxy) IIIB 240 532
Rubber IIIB 450 470
Soot IIIB 450 720
Starch (Maize) IIIB 490 430
Sugar IIIB 460 360
Wood (Flour) IIIB 305 470

Codice di certificazione di esame tipo CE/UE

TRAC 13 ATEX 0009 X
Notified body responsible for EC/EU-Type Examination Year Issued ATEX Certificate Serial Number Number Suffix

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