電纜選擇原則
Cable Selection Principle
在選用電線電纜時，一般要注意電線電纜型號、規格（導體截面）的選擇。
When choosing wire and cable, attention should be paid to the selection of wire and cable types and specifications (conductor cross section).
⒈電線電纜型號的選擇
_Selection of Wire and Cable Types
選用電線電纜時，要考慮用途，敷設條件及安全性；例如：
When choosing wires and cables, consideration should be given to their use, laying conditions and safety.
根據用途的不同，可選用電力電纜、架空絕緣電纜、控制電纜等；
According to different uses, power cables, overhead insulated cables and control cables can be selected.
根據敷設條件的不同，可選用一般塑料絕緣電纜、橡膠絕緣電纜、鋼帶鎧裝電纜、鋼絲鎧裝電纜、防腐電纜等；
According to different laying conditions, general plastic insulated cables, rubber insulated cables, steel belt armoured cables, steel wire armoured cables, anti-corrosion cables can be selected.
根據安全性要求，可選用阻燃電纜、無鹵阻燃電纜、耐火電纜等。
According to the safety requirements, flame-retardant cables, halogen-free flame-retardant cables and fire-resistant cables can be selected.
⒉電線電纜規格的選擇
_Selection of wire and cable specifications
確定電線電纜的使用規格（導體截面）時，一般應考慮發熱，電壓損失，經濟電流密度，機械強度等選擇條件。
When determining the specifications of wires and cables (conductor cross section), the selection conditions such as heating, voltage loss, economic current density and mechanical strength should generally be considered.