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3.6 Installation Precautions
Check the following items before installing the product, and the product cannot be used if
it is non-conforming.
a.
Whether there is explosion-proof certificate number;
b.
Whether the explosion-proof mark applies to the environment of explosive gas
mixture;
c.
Whether all explosion-proof parts are free from cracks and defects affecting the
explosion-proof performance.
Correctly select the cable, ensure that the diameter of lead-in cable matches with the bore
diameter of rubber seal ring, select the minimum cable OD as per the mark on the end
face of the rubber seal ring, and guarantee that the gaps between the rubber seal ring and
the cable as well as the rubber seal ring and the lead-in device meet the explosion-proof
requirement after the hold-down nut is tightened.
Set the nameplate and the warning sign "No Opening with Power" in an obvious position
on the surface of the product.
During wiring, select the seal ring with inner bore of Φ10 and characters "≥Φ9.5" cast on
the end face, and select the cable of which the outer diameter matches with the internal
bore diameter of the seal ring, as shown in the figure.
Figure 15. Seal Ring Diagram
SVEX-T500A Explosion Proof Camera User Manual.
≥Φ9.5
12
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