建筑电气方面的知识（Knowledge of building electrical）.doc

建筑电气方面的知识（Knowledge of building electrical） In the system diagram is a combination of various symbols, I hope the following can help you: I. The indication of the wire through the tube: PVC tube: PC20, Welded pipe: SC20, Buckling type thin-wall galvanized wire pipe: KBG20, Tight galvanized thin wall wire tube: JDG20, Two, electrical design and construction drawings are commonly used line laying method: SR: laying along the steel groove BE: laying along the roof truss or roof truss CLE: laying along columns or columns WE: laying along the wall CE: laying along the ceiling or ceiling ACE: laying in the access ceiling BC: buried in the beam CLC: buried in the column WC: buried in the wall CC: concealed in the ceiling ACC: concealed in the ceiling that is not accessible FC: buried in the ground SCE: the ceiling should be laid with metal pipe First, the conductor through the tube that SC- welded steel pipe MT- wire tube PC-PVC plastic hard tube FPC- flame retardant plastic hard tube CT- Bridge MR- metal wire groove M- cable CP- metal hose PR- plastic wire groove RC- galvanized steel pipe Two. Indication of wire laying method DB- buried directly TC- cable trench BC- concealed in the beam CLC- concealed in columns WC- concealed in the wall CE- is laid along the ceiling CC- concealed in the ceiling SCE- ceiling laying F- floor and floor SR- along the tightrope BE- along the roof beam WE- lay open along the wall Three, the installation of lamps means CS- chain sling DS- pipe hanger W- wall mounting C- suction top R- embedding S- stent CL- column Along the steel groove: SR Along the roof truss or cross roof: BE Along columns or columns: CLE Welded steel pipe laying: SC Conduit laying: MT Rigid plastic pipe laying: PC Flame retardant semi rigid PVC pipe laying: FPC Cable tray laying: CT Metal line laying: MR Laying of plastic groove: PR Laying with cables: M PVC insulated corrugated pipe laying: KPC Laying through metal hose: CP Direct Embedment: DB Cable trench laying: TC Mar