Who knows: oil and gas metal pipeline flange need to do cross connection? Action? According to what
Should set up the cross wire (in the flange or threaded joints between.GB/T20801.4 and ground) - 2006 "pressure piping specification for industrial pipeline fourth parts: production and installation of" 10.12 static grounding 10.12.1 pipeline static Earthing requirements, each section shall have good electrical conductivity. Each pair of flange or screw joint between the resistance value greater than 0.03 when should set the wire jumper.10.12.2 pipeline system to ground resistance value more than 100 ohm, measures should be taken to set up two or grounding wire. Grounding wire shall be welded with.10.12.3 static grounding requirements of stainless steel pipe and titanium pipe, wire jumper or grounding wire may not be directly welded with titanium pipe and stainless steel pipe, the pipe should be using the same material and ground transition.10.12.4 electrostatic grounding after installation, must be tested when the resistance value exceeds the requirement should be adjusted.
Electrostatic grounding is not to decide the number of the flange bolts, is based on the measured resistance value to decide, so the requirements of electrostatic grounding: TSG D0001-2009 "pressure pipe safety technology supervision regulation for industrial pipeline" eightieth pipe electrostatic grounding requirements, the resistance value should be measured joint resistance and pipeline system. When the resistance value is more than 20801 or GB/T provisions of the design documents at,
Static electricity will produce electrostatic sparks, so the static electricity to the ground. But often because the gasket flange connection without electricity, the bolt will rust, caused by the two conductive flange is not good, so it is necessary to use jumper assurance static drain.
