Section 2(1) 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
(1)In these regulations unless the context otherwise requires, -(a)"Act" means the Petroleum and Natural Gas Regulatory Board Act, 2006;(b)"active regulator" means a regulator in pressure regulating station (PRS) that normally controls the outlet pressure;(c)"authorized person" means a competent person who is assigned by the owner or operator to carry out a specific job based on his competency level as laid down by the Board under regulations;(d)"city or local natural gas distribution network" (hereinafter referred to as CGD network) means an interconnected network of gas pipelines and the associated equipments used for transporting natural gas from a bulk supply high pressure transmission main to the medium pressure distribution grid and subsequently to the service pipes supplying natural gas to domestic, industrial or commercial premises and CNG stations situated in a specified geographical area;(e)"consumer meter" means a meter that measures gas delivered to a consumer at the consumer's premises;(f)"creep relief valve" means a relief valve installed to relieve over pressure caused by creep in the downstream system and having maximum 1 % flow capacity;(g)"city gate station (CGS)" means the point where custody transfer of natural gas from natural gas pipeline to the CGD network takes place and this may also be referred to as City Gate Measuring and Pressure Regulating Station;(h)"competent person" means an individual recognized by the CGD network owner/operator based on his proficiency and skill set achieved by appropriate combination of education, training and practical experience in the critical traits as laid down by the Board under regulations;(i)"Distribution Pressure Regulating Station or District Regulating Station (DPRS)" means a station located within authorized area for CGD network having isolation, pressure regulating and overpressure protection devices;(j)"electro fusion joint" means a joint made in thermo plastic piping by passing the current through the electrical coil provided in the fitting and heating the parts sufficiently to permit adequate flow and fusion of the materials between the two surfaces put in contact;(k)"Monitor and Active Regulators" means an arrangement of two regulating devices in series whose pressure settings are stepped so as to allow one (Active) normally to control the outlet pressure and the other (Monitor) to assume control in the event of failure of the active device;(l)"operator" means an entity that operates CGD network with the authorization of the Board;(m)"owner" means an entity that owns the CGD network and has been authorized by the Board;(n)"primary network" means a part of CGD network that operates at pressure above 100 psig (7 bar) and below 711 psig (49 bar) and pipelines forming part of this network called Gas Main or Distribution Main or Ring Main shall be designed to ensure uninterrupted supply of gas from one or more City Gate Stations to supply gas to the secondary gas distribution network or service lines to bulk customers through service lines;(o)"Slam Shut Valve" means a valve that is designed to close quickly in the event of an abnormal pressure (whether excess or low) being detected at a selected point in a gas system;(p)"secondary network" means a part of CGD network that operates at a pressure below 100 psig (7 bar) and above 1.5 psig (100 mbar) and pipelines forming part of this network shall be called low-Pressure Distribution Mains which shall be designed to ensure uninterrupted supply to tertiary network or to industrial consumers through service lines;(q)"sub-transmission pipeline" means a high pressure pipeline connecting the main transmission pipeline to the city gate station but is owned by the CGD entity;(r)"tertiary network" means a part of CGD network that operates at pressure less than 1.5 psig(100 mbar) and pipelines forming part of this network to service Pressure Distribution Mains shall be designed to ensure uninterrupted gas supply to service lines;
