What is the tolerance zone for a 6-inch gas main?

The tolerance zone for a 6-inch gas main is defined as 18 inches plus half the width of the pipe. This means that if the pipe has a certain diameter, the tolerance zone encompasses a specific area around the main that allows for excavation and other activities while ensuring the safety and integrity of the gas infrastructure.

For a 6-inch pipe, half the width would be 3 inches (since 6 inches divided by 2 equals 3 inches). Therefore, the total tolerance zone would be 21 inches (18 inches plus 3 inches). This area is critical for maintenance and operation, as it provides the necessary space for workers to safely perform their tasks without risking damage to the pipeline or creating unsafe conditions.

Understanding the tolerance zone is essential for compliance with safety regulations and for ensuring that excavations around gas mains are done with maximum regard for safety and the protection of underground utilities.