1.1本规程专门阐述了确定天然气管道用作光缆系统导管的适用性的标准，而不是此类系统的操作和维护标准。 1.2本规程不适用于天然气输送线路。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本规程旨在帮助工程师、LDC和安装人员确定天然气管道作为光纤系统载体的二次用途的适用性。 必须记住，天然气管道的主要用途是向最终客户输送天然气。系统的任何二次使用对其主要功能的影响应最小。由工程师决定操作顺序以及选择过程中可能涉及的任何例外情况。 在选择程序开始之前，LDC必须制定明确的协议，授权安装人员在其管道系统内放置光缆。 相关LDC工程师还应认识到光缆的安装将如何影响作为光纤系统载体的管道的未来天然气输送能力、操作、维护和修复需求。

1.1 This practice specifically addresses the criteria for determining the suitability of natural gas pipelines for use as conduits for optical fiber cable systems, as opposed to standards for the operation and maintenance of such a system. 1.2 This practice does not apply to natural gas transmission lines. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== This practice is intended to assist engineers, LDC's and installers in determining the suitability of gas pipelines for a secondary use as carriers for optical fiber systems. It must be kept in mind that the primary use of the gas pipelines is to deliver natural gas to the end customer. Any secondary use of the system shall have minimal impact on its primary function. It is up to the engineer to decide upon the order of operations and any exceptions that may be involved in the selection process. Before the selection procedure begins, the LDC must have developed an explicit agreement authorizing an installer to place optical fiber cables within their piping system. The relevant LDC engineers should also be cognizant of how the installation of optical fiber cable will impact the future gas deliverability, operation, maintenance, and rehabilitation needs of the pipelines to be used as carriers of optical fiber systems.