What is the difference between Ex e and Ex d?
Herein, what is the difference between Ex ia and Ex ib?
The difference is performance under fault conditions: Ex ia systems are safe even with 2 faults; Ex ib systems are safe with 1 fault; Ex ic systems are safe in normal operation (no fault).
Beside above, what type of protection is Ex e equipment? Exd - Flameproof Enclosure – The protection concept is to contain the explosion and prevent the flame propagation. Following the protection is pure mechanical, i.e. strength of housing and the installation and maintenance of functional flamepaths to avoid flame propagation.
In this manner, what is ex I?
Ex i Intrinsically Safe Electrical Equipment. Intrinsic safety is a technique where the electrical energy available in any spark which can occur in the hazardous area will be non-incentive.
What is an ex area?
Ex areas in the workplace are locations where there is a risk of fire or explosion due to the presence of ignitable substances in the air. These substances include gases, vapors, dusts, and fibers that are present in the air at high-enough concentrations to produce an ignitable mixture.