If the question, please ask how the power cable should be set when the set of quotas (08 installation quota)? More
SC pipe welding fluid with welded steel pipe, the general thread connection, or casing welding connection. TC pipe is a thin-walled steel pipe, referred to as wire tube, you can thread connection, tight connection, buckle type connection, not casing welding connection.
TC line laying is the use of wire steel pipe laying. Wire steel pipe is a thin-walled tube, the nominal diameter is the outer diameter of the pipe. SC line laying is the use of ordinary welded steel pipe laying. Ordinary welded steel pipe is thick-walled tube, nominal diameter is tube diameter.
