GB 50500-2013 第1.1条
| **Appendix C.** | **Electrical engineering (guest rooms/public areas)**: **Conduit** is measured by length per the dimensions shown on the design drawings (the length occupied by intermediate junction boxes and outlet boxes along the conduit run is not deducted). **Cables** are measured by length per the dimensions shown on the design drawings (additional length for waveform bends, sag, crossings, etc. must be considered, typically applying a coefficient of 1.025–1.04 to the length shown on the drawings). **Switches/sockets** are measured by quantity per the design drawings, in "pieces". |