There are a number of techniques available when protecting
equipment for use in hazardous areas. However, the choice
is more limited when protecting mobile material handling
equipment. Available techniques include:
Water cooling |
To reduce surface temperatures. |
| Exhaust conditioners |
To cool exhaust emissions and quench flames |
| Ex tD |
Protection by enclosure. Exclusion of dusts, fibres and or flyings |
| Ex mD |
Protection by encapsulation
Exclusion of dusts, fibres and or flyings |
| Ex d |
Flameproof enclosure - Explosion containment |
| Ex i |
Intrinsic Safety - Energy limitation |
| Ex e |
Increased safety - Avoidance of ignition |
| Ex n |
Non-sparking - Avoidance of ignition |
| Ex m |
Encapsulation - Exclusion |
| Ex p |
Pressurisation - Exclusion
|
| Ex s |
Special protection |
| Static dissipation |
Static discharge of equipment, tyres and belt drives
|
