Please inform me of the relevant standards regarding the spacing between natural gas pipelines throughout a refinery and cable trays installed overhead.
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For a process piping project within a refinery facility, one of the components of the renovation involves a new oil pipeline that needs to be supported by existing pipe racks; cable trays are installed on these rack, and the voltage level of the cables inside those trays is unknown. The pipes and trough boxes are on the same level as the pipe rack; may I ask what the minimum horizontal spacing should be? Could you please provide the standard number of the relevant standard that specifies this spacing? Thank you so much!
Industrial metal pipe, 500mm