The California Public Utilities Commission has ordered Pacific Gas & Electric to begin a check of all its 5,700 miles of natural gas pipelines to look for any potential leaks or weaknesses in the pipe

摘要

The CPUC order comes as the investigation into last week's deadly explosion of a natural gas pipeline in San Bruno, California, that killed least four people and destroyed or heavily damaged more than 50 homes. CPUC's order also directs the utility to focus its inspections on gas lines in heavily populated areas and detail how much PG&E has spent since 2005 on replacing pipelines because of safety concerns. The National Transportation Safety Board is conducting the federal investigation into the accident and has sent the section of the pipeline that ruptured to a federal center for testing.