This specification stipulates the technical requirements for the design and construction of optical cables, high-density vinyl silicon core tubes (referred to as silicon core tubes) and oil (gas) pipelines (referred to as pipelines) in the same trench. This specification applies to the design, construction and acceptance of optical cable (silicon core tube) and pipeline laying projects in the same trench.
SY/T 4108-2005 history
2019SY/T 4108-2019 Design and construction specifications for laying optical cables (silicon core tubes) in the same trench of oil and gas transmission pipelines
2012SY/T 4108-2012 Design and construction code of optical fiber cable(high-density polyethene silicore duct)laying in the same trench with oil(gas) pipeline
2005SY/T 4108-2005 Code of design and construction acceptance of FOC (HDPE tube) laying in the same trench with oil (gas) pipeline