Main 3 : Continuous pipe used for the conveyance of gas from points of supply, generally running within the road corridor and from which individual service pipes for other parts of the distribution network are supplied
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}