SC/镀锌钢管ZC/埋地敷设
PC/穿硬塑料管敷设MR/穿槽暗敷
FPC/穿焊阻燃半硬聚氯乙烯管敷设DB/直接埋设
MT/穿电线管敷设TC/电缆沟敷设
CT/电缆桥架敷设CE/混凝土排管敷设
RM/金属线槽敷设AB/沿或跨梁（屋架）敷设PR/塑料线槽敷设BC/暗敷在梁内
M/用钢索敷设AC/沿或跨柱敷设
KPC/穿聚氯乙烯塑料波纹电线管敷设CLC/暗敷在柱内
CP/穿金属软管敷设CE/沿天棚或顶板面敷设CC/暗敷设在屋面或顶板内SCE/吊顶内敷设
WC/暗敷于墙内F/地板或者地面敷设
FC/暗敷于地板内WS/沿墙面敷设
8.3185 10.8585
16.129 20.8915 25.5905
32.512 44.2595
55.626 72.3265
116.2685