GB 50116-2013 第3.2.6条
| When cables are laid in conduits or cable trays, their total cross-sectional area shall not exceed 40% of the conduit's internal cross-sectional area or 60% of the cable tray's cross-sectional area.
| When cables are laid in conduits or cable trays, their total cross-sectional area shall not exceed 40% of the conduit's internal cross-sectional area or 60% of the cable tray's cross-sectional area.
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