Describe the mating surfaces of explosionproof equipment.
What will be an ideal response?
Great care must be exercised when installing or maintaining explosionproof equipment. The improper installation or maintenance of this equipment can completely negate the system's integrity. The mating surfaces of explosionproof boxes are ground flat to provide a very close fit. A screwdriver gouge or deep scratch can provide the exit point for hot gases to escape and ignite the surrounding atmosphere. The ground surfaces of explosionproof enclosures should be cleaned with solvent to remove dirt particles before the parts are bolted together. If it is necessary to remove a substance that cannot be cleaned with solvent, use a fine steel wool; never use sandpaper or a sharp scraping instrument such as a putty knife. All bolts must be in place and tight. If one bolt is missing, the enclosure may not be able to prevent ignition of the surrounding atmosphere in the event of an internal explosion.
You might also like to view...
What is a level cross section?
What will be an ideal response?
The type of respiratory protection required for different types of workplace hazards is specified by _____.
a. the contractor b. the Fair Labor Standards Act c. the labor union contract d. OSHA
Three facial features that may interfere with the seal of a respirator are:
What will be an ideal response?
In Quadrant III on the Cartesian coordinate system, the x value is positive and the y value is negative.
Answer the following statement true (T) or false (F)