Poulanrebel
New User
- Location
- Pasadena, Texas
- Occupation
- Electrician
Am I able to use class 1 div 2 motors in an area that transfers acetone from one vessel to another???? Or any other flammable materials
Class 1 div 2
- Thread starter Poulanrebel
- Start date
- Status
- Location
- Illinois
- Occupation
- retired electrician
If the area is classified as Class I, Division 2, you must used equipment permitted for use in a Class I, Division 2 area.
The real question is if you have the area classification documents that are required by 500.4? Without such documents you have no idea of where the classification boundaries are and where to install seal fittings in the raceways. The NEC, other than for the specific occupancies addressed by Articles 511 through 516 does not give you the information you need to classify an area. The Informational Notes following 500.4 cites other documents that are used to define the classified areas.
The real question is if you have the area classification documents that are required by 500.4? Without such documents you have no idea of where the classification boundaries are and where to install seal fittings in the raceways. The NEC, other than for the specific occupancies addressed by Articles 511 through 516 does not give you the information you need to classify an area. The Informational Notes following 500.4 cites other documents that are used to define the classified areas.
ewpower
New User
- Location
- All over the US
- Occupation
- Power Industry Professional
First time I'm on here, so pardon me if my question is not in the correct place.
I have some projects all being built by the same outfit all across New York, as well as some sites in WI and SD, and at each site they are installing a Sewerin gas analyzer that takes in a sample of gas before and then again after H2S scrubbers. The gas analyzer itself is mounted inside of a weatherproof box as it is an outdoor operation. The box itself was mounted a few feet outside of a C1 D2 area, so no problem there, however, the tubing feeds a gas sample (minute) into the analyzer inside of the cabinet. The tubing is plastic. While the gas stream is very insignificant in volume and pressure, being in an enclosed box, the potential for build up exists. And also within that cabinet are breakers and in one of them an outlet. It almost seems to me they are creating a C1D2 area within the cabinet. Thoughts? And yes, I do have good 3 D classified area drawings. Where this cabinet is located is clearly outside of those zones, but the component itself (Sewerin Gas Analyzer Cabinet) is not represented on the drawing.
Picture attached. The yellow lines are plastic gas sample tubes. Methane content is about 54% on the inlet sample and 90% on the outlet sample.
SORRY - COULDN'T GET PIC ATTACHED.
I have some projects all being built by the same outfit all across New York, as well as some sites in WI and SD, and at each site they are installing a Sewerin gas analyzer that takes in a sample of gas before and then again after H2S scrubbers. The gas analyzer itself is mounted inside of a weatherproof box as it is an outdoor operation. The box itself was mounted a few feet outside of a C1 D2 area, so no problem there, however, the tubing feeds a gas sample (minute) into the analyzer inside of the cabinet. The tubing is plastic. While the gas stream is very insignificant in volume and pressure, being in an enclosed box, the potential for build up exists. And also within that cabinet are breakers and in one of them an outlet. It almost seems to me they are creating a C1D2 area within the cabinet. Thoughts? And yes, I do have good 3 D classified area drawings. Where this cabinet is located is clearly outside of those zones, but the component itself (Sewerin Gas Analyzer Cabinet) is not represented on the drawing.
Picture attached. The yellow lines are plastic gas sample tubes. Methane content is about 54% on the inlet sample and 90% on the outlet sample.
SORRY - COULDN'T GET PIC ATTACHED.
- Location
- Illinois
- Occupation
- retired electrician
That sounds like an issue for the manufacturer of the cabinet. What do the instructions say? Is the cabinet a listed product?
I am not qualified to classify areas.
I am not qualified to classify areas.
- Status