hhsting
Senior Member
- Location
- Glen bunie, md, us
- Occupation
- Junior plan reviewer
Attached sketch shows gas station convience store inside has Panel C, their is also Panel schedule C, outside store 5 dispensers, outside store 3 E stops and power riser Panel C with three E stops and feeder from feeder breaker from another panel feeding Panel C.
Sketch shows that their is 20A feeder breaker from Panel C schedule circuit #20 going to power three E stops. The feeder cable size is 2# 14.
120/208V three phase Panel C feeds gas station Dispensers, tank STP pumps, Air comp, price sign.
I really need help in regards to those of you who have actually wired or have knowledge gas station E stop following question:
1. Can their be a feeder breaker from dispenser/pump panel to feed the E stop for power? If yes then what is E stop powering its just a contact switch no?
2. If yes to #1 then does it need equipment grounding conductor? If no to #1 then what powers the E stop?
3. Power riser shows one feeder to E stops in series. I thought the E stop is suppose to disconnect dispenser all power, data communication, video NEC 2014 Article 514.11. Should not E stops be on and disconnect feeder to Panel C or all Dispenser feeder?
4. Note Panel C also feeds tank STP pumps, Air comp, price sign. Do those need to be disconnect by E stop?
5. I thiught E stop had control circuit. What is the purpose of 2#14 if not power?
Thank you for your input
Sent from my SM-G935U using Tapatalk
Sketch shows that their is 20A feeder breaker from Panel C schedule circuit #20 going to power three E stops. The feeder cable size is 2# 14.
120/208V three phase Panel C feeds gas station Dispensers, tank STP pumps, Air comp, price sign.
I really need help in regards to those of you who have actually wired or have knowledge gas station E stop following question:
1. Can their be a feeder breaker from dispenser/pump panel to feed the E stop for power? If yes then what is E stop powering its just a contact switch no?
2. If yes to #1 then does it need equipment grounding conductor? If no to #1 then what powers the E stop?
3. Power riser shows one feeder to E stops in series. I thought the E stop is suppose to disconnect dispenser all power, data communication, video NEC 2014 Article 514.11. Should not E stops be on and disconnect feeder to Panel C or all Dispenser feeder?
4. Note Panel C also feeds tank STP pumps, Air comp, price sign. Do those need to be disconnect by E stop?
5. I thiught E stop had control circuit. What is the purpose of 2#14 if not power?
Thank you for your input
Sent from my SM-G935U using Tapatalk