Electrical Inspector

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bandylb18

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Currently working in Lea County, NM near Jal, NM
I am working on a natural gas compressor station in Calif. I was approached by one of the operators and asked about ESD (Emergency Shut Down) systems being mentioned in the NEC. I don't recall any mention of them in NEC and thought it more likely that they would be something found in NFPA. Can you shed any light on this?
 
514.11(A), (B) & (C) require a circuit disconnect for all circuits leading to or through dispensing equipment.

Article 514 applies to motor fuel dispensing facilities including Compressed Natural Gas stations.

Chris
 
If you are talking about a compressor station built to transport the natural gas (like the CS I work at) as opposed to a motor fuel dispensing facility, you are correct - there is no NEC code requiring an ESD system.

The requirement of an ESD system is usually in accordance with compliance with ANSI/ISA standards, insurance company requirements, or government requirements (US DOT or state requirements).
 
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