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Schrader Bergbau Elektrik GmbH |
Elektrische Ausrüstungen für Bergbaumaschinen und -anlagen |
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german |
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| PNEUMATIC AIRLAMP | for beamed light - zone 1 | |
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| Using SBE - pneumatic airlamps in hazardous areas is a very safe mode of illumination. | ||||||||||||||||||||||
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| pneumatic airlamp 26501 |
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| explosion- and flameproofed | ||||||||||||||||||||||
| VDE 0170 (SCH) f VDE 0171 (Ex) s G5 |
BVS-Nr.: T 4680 BVS-Nr.: T 4680 |
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| admission: EG-Richtlinie 94/9/EG
(ATEX-100a) applied. |
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| technical data | ||||||||||||||||||||||
| operating voltage: electrical power: luminous flux: bulb: operating pressure: air consumption: ambient temperature: weight: length: diameter: air coupling: |
12 V max. 100 W 1.500 Lm 100 W incandescent 3 - 7 bar appr. 300 L/min -20°C - +40°C appr. 14,0 kg 490 mm 220 mm max. R3/4" / R5/8" |
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| example of use | ||||||||||||||||||||||
| Light fittings type 26501 are used where working stations or vast distances have to be illuminated with beamed light | ||||||||||||||||||||||
| - tunneling works - tank - ships - canalisation - tunneling and mining mashines |
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| The lamps can be used in all hazardous areas zone 1. | ||||||||||||||||||||||
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| description | ||||||||||||||||||||||
| Due to its special construction
an ignition of hazardous atmospheres inside and outside the lamp are
avoided by several means. At first the air flows into the lamp housing
and generates an overpressure before it flows into the generator housing
to drive the turbine wheel of the AC-generator to induce the voltage
for the bulb. If the lamp housing or the protection glass is damaged, the air flows outside first. The generator stops immediately and cannot induce any voltage for the bulb. The exhausting air prevents a penetration of explosive gases inside the lamp and can cool the spiral of a broken bulb, too. Pressure-fluctuations of the air are compensated by the air regulating system inside the lamp. The lamp-housing is made of brass. |
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