中(含原电路)三者不能混淆。3、一些电热元件的技术数据表1电熨斗电热元件技术数据型式功率/W电压/V电热元件结构电热材料Cr15Ni60/mm冷态电阻/Ω普通型300500750220220220云母支架云母支架云母支架0.4x0.1或Φ0.210.8x0.80.8x0.141488959.3调温型3005007501000220220220220云母支架管状元件Φ8x1云母支架管状元件Φ10x10.4x0.1或Φ0.21Φ0.450.8x0.14Φ0.271488959.344.5表2外热式电烙铁电热元件技术数据功率/W冷态电阻/Ω电热丝(Cr20Ni80)线径/mm节距/mm3050751001502003005001586952635476318238159950.05~0.060.08~0.100.11~0.130.13~0.170.19~0.210.22~0.250.28~0.350.30~0.420.3~0.40.3~0.40.4~0.50.5~0.60.5~0.60.6~0.70.7~0.80.8~1.0表3日用电炉电热丝技术数据(电压220V)型式功率/W线径/mm螺旋外径/mm密绕螺旋单线长度/m冷态电阻/Ω长度/mm开启式300600800100012001500200030000.350.500.600.650.70.80.91.23.74.55.25.35.45.65.86.934642247047649257060281210.410.611.410.710.410.7510.312.121507556.34537.53022.515半封闭式3006001000150020000.130.250.50.60.71.262.002.52.72.9664936576958481.834.048.287.658.2115778.547.131.423.5
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