Section 5(b) in The Petroleum and Natural Gas Regulatory Board (Technical Standards and Specifications including Safety Standards for City or Local Natural Gas Distribution Networks) Regulations, 2008
(b)The continuation of operation of existing CGD network shall be allowed only if it meets the following requirements, namely:-(i)The CGD system downstream of city gate station shall have been tested initially at the time of commissioning in accordance with ASME B 31.8 Chapter IV (with minimum test pressure of 1.4 times of MAOP for steel network and 1.4 time MAOP or 50 PSI whichever is higher for PE network). The entity should have proper records of the same. Such test record shall have been valid for the current operation. Alternatively, if such a record is not available, the entity should produce in service test record of the CGD network having tested at a pressure of 1.1 time of MAOP as per ASME B 31.8;(ii)The CGD system has leak detection system in position and is operative. For pipeline network it shall be odorisation based and for enclosures such as CGS, above ground DPRS, it shall be gas leak detection based.(iii)The CGD system has in position necessary pressure relief valves; and(iv)There shall be protection of the system against third party damages both in respect to steel pipe, PE pipe and copper tubing.
