- Cover Requirements for Mains. Buried mains shall be installed with a cover not less than 24 in. (610.
- Cover Requirements for Pipelines
- Clearance Between Pipelines or Mains and Other Underground Structures shall be at least 6 in. (150 mm) of clearance wherever possible between any buried pipeline and any other underground structure not used in conjunction with the pipeline. or shall be at least 2 in. (50 mm) of clearance wherever possible between any buried gas main and any other underground structure not used in conjunction with the main.
- When such clearance cannot be attained, precautions to protect the main shall be taken,such as the installation of insulating material or casing.
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