Is explosion protection required for electrical equipment in areas where chlorine is used?
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Recently, when working on a special report on safety facility design, it was found that in areas where chlorine is used (note: with no other flammable or explosive substances present), explosion-proof electrical equipment is used in the electrical design. In my opinion, its electrical properties should be determined based on the corrosive environment. I wonder if it’s reasonable? If explosion protection is required, where is the basis for that? Both chlorine and oxygen are oxidizing gases that aid combustion, as well as strong oxidants. According to relevant regulations, the electrical systems in oxygen-rich areas are classified as those in fire-prone areas only, and not as those in explosion-hazardous areas. I hope the experts here can give me some advice! Thank you!
Don’t high pressures make explosions more likely? ? ? There are many explosions. Cylinder explosions are very serious
It seems like those upstairs didn’t understand what the original poster meant. Is electrical equipment necessarily explosion-proof in areas where explosions may occur? Boilers in coal-fired boiler rooms can also explode due to reasons such as overpressure; does electrical equipment also need to be explosion-proof? That doesn’t seem to make sense!
Chlorine itself is not flammable or explosive; it is merely an oxidizing gas. However, chlorine, including liquid chlorine, inevitably contains impurities such as hydrogen and nitrogen trichloride, so there is a potential for explosion under strict conditions.
I want to know how to choose the explosion protection rating in case of an explosion
I agree with what was said on floor 4: \"Chlorine, including liquid chlorine, inevitably contains impurities such as hydrogen and nitrogen trichloride, and strictly speaking there is a possibility of explosion; therefore it is safer to use explosion-proof electrical products.\"
The reason is simple: explosions are far more dangerous than corrosion. Safety first; explosion prevention must be considered first and foremost. There are also other standards for corrosion.
One of the safety measures in the chlorine area is to eliminate the potential for detonation. Specific measures include: static electricity grounding, use of explosion-proof electrical appliances, equipment, and tools; heating the vaporizer only with water at a temperature not exceeding 45°C; prohibition of the use of high-frequency ultrasound devices; and strict adherence to fire management regulations
I just asked our electrical engineer, and he said it’s not necessary; it’s not an explosion-proof area
In an environment with chlorine, anti-static and explosion-proof electrical equipment is necessary to eliminate the potential for detonation; since chlorine contains NCL3 and H2, it is important to handle it properly