Sc means laying through steel pipes.
1. Electrical piping refers to the laying of cable protection tubes.
Second, the types of piping mainly include:
PC PVC hard tube,
FPC semi-rigid tube,
CT is laid for the bridge
Third, the common (serious) problems in this process are:
Replace plastic pipes such as SC/TC/KBG/JDG with plastic pipes such as PVC;
Metal pipe is commonly used in plastic pipe fittings such as plastic pipe fittings;
PVC pipe (rain pipe, air conditioning condensate pipe) does not set expansion joint according to specifications and design requirements;
PVC pipes (sewage, rainwater pipes, air-conditioning condensate pipes, etc.) are not provided with metal hangers.