MIEngineer
Member
- Location
- Michigan
Hello All,
I was hoping for some clarification. I currently have a gasoline dispensing tank that is approximately 15 feet above grade. My understanding is that according to Table 514.3(B)(1) my class 1 division 2 area is 18 in. above grade level within 20 ft horizontally of any edge of enclosure. Also 18 in. from any edge extending horizontally. Class 1 division 1 area is directly below the tank down to grade.
1) I am understanding this as meaning that the conduits down the pole next to the tank are fine (I believe they are RMC) as long as there are no unions in them as they pass through the class 1 division 2 area (501.15(B)(2) exception No. 2).
2) Also I thought I was required to install an emergency stop button does anyone have a code reference to this.
3) Is there any reason I would have to move either the pole or the tank if it is more than 18 inches away?
4) How does the dispensing nozzle play into all of this? Is my class 1 division 2 area anywhere above grade that the dispensing nozzle can reach?
Thank you in advance for any assistance.
I was hoping for some clarification. I currently have a gasoline dispensing tank that is approximately 15 feet above grade. My understanding is that according to Table 514.3(B)(1) my class 1 division 2 area is 18 in. above grade level within 20 ft horizontally of any edge of enclosure. Also 18 in. from any edge extending horizontally. Class 1 division 1 area is directly below the tank down to grade.
1) I am understanding this as meaning that the conduits down the pole next to the tank are fine (I believe they are RMC) as long as there are no unions in them as they pass through the class 1 division 2 area (501.15(B)(2) exception No. 2).
2) Also I thought I was required to install an emergency stop button does anyone have a code reference to this.
3) Is there any reason I would have to move either the pole or the tank if it is more than 18 inches away?
4) How does the dispensing nozzle play into all of this? Is my class 1 division 2 area anywhere above grade that the dispensing nozzle can reach?
Thank you in advance for any assistance.