You must:
(1) Make sure the vapor areas and adjacent areas do not have any:
• Open flames
• Spark producing devices
• Heated surfaces hot enough to ignite vapors.
(2) Use explosion-proof wiring and equipment in the vapor area.
Reference: | Electrical wiring and equipment has to meet the requirements of the applicable hazardous (classified) location. See Hazardous (classified) locations, WAC 296-307-37209. |
You must:
(3) Prohibit smoking in any vapor area:
• Post an easily seen "no smoking" sign near each dip tank.