1.1 Scope
This code applies to the installation, operation, inspection and diagnosis of gas pipelines among
the gas supply installations of general urban gas business operators in conformity to the Urban
Gas Business Act (hereinafter referred to as “the Act”), Article 2, Clauses 4 and 5. <Revised on December 18, 2013>
1 General..........................................................................................................................................................................................1
1.1 Scope................................................................................................................................................................................1
1.2 Validity of Code ...........................................................................................................................................................1
1.3 Definitions ......................................................................................................................................................................1
1.4 Application of Other Codes (currently not used) ........................................................................................8
1.5 Interim Measures.........................................................................................................................................................8
1.5.1 Interim measure for installation of line marks.................................................................................8
1.5.2 Interim measure for installation and protection of pipelines ................................................ 10
1.5.3 Interim measure for pipeline materials............................................................................................. 11
1.5.4 Interim measure for installation and inspection of pressure regulators........................... 13
1.5.5 Interim measure for preparation of pipeline drawings............................................................. 13
1.5.6 Interim measure for marking................................................................................................................. 13
1.5.7 Interim measure for piping installation inside buildings <Newly established on October 14, 2013> ................................................................................................................................................ 13
1.5.8 Interim measure for heat fusion machines<Newly established on September 11, 2014>........................................................................................................................................................................... 12
1.5.9 Application example of socket fusion <Newly established on October 2, 2015> ...... 13
1.5.10 Interim measure for repairs and reinforccement after detailed safety diagnosis
<Newly established on November 23, 2016>.......................................................................................... 13
1.6 Restriction to Use of Appliances....................................................................................................................... 14
1.7 Restriction to Pipeline Pressure......................................................................................................................... 14
1.8 Restriction to Pipeline Installation (currently not used)<Deleted on October 14, 2013>..... 14
1.9 Restriction to Installation of Polyethylene Pipes for Gases.................................................................. 14
2. Installation Standard........................................................................................................................................................... 15
2.1 Layout Standard (currently not used)............................................................................................................. 15
2.2 Foundation Standard (not applicable) .........................
