大家好,最近碰到了一個比較急手的問題,請大家幫忙分析分析
在UL60950中的變壓器外圍膠帶問題?
做雙重絕緣產品,我們做雙重絕緣產品變壓器包2T就夠了,但客戶提出要包3T,請問在UL60950中哪里有體現雙重絕緣產品之對變壓器外圍膠帶的層數?
大家好,最近碰到了一個比較急手的問題,請大家幫忙分析分析
在UL60950中的變壓器外圍膠帶問題?
做雙重絕緣產品,我們做雙重絕緣產品變壓器包2T就夠了,但客戶提出要包3T,請問在UL60950中哪里有體現雙重絕緣產品之對變壓器外圍膠帶的層數?
關于UL60950主要測試項目:
不知你是不是需要這些!
Hazardous Energy Level(危險能量測試) |
Input Test(輸入測試) |
Marking Durability(標簽耐久性測試) |
Discharge of Primary Capacitors(放電試驗) |
Limited Current Circuits(限電流測試) |
Limited Power Source(限功率測試) |
Earthing Resistance(接地阻抗測試) |
Humidity Conditioning and Electric Strength(潮態與耐壓測試) |
Working Voltage(工作電壓測試) |
Clearance and creepage distance(空間距離與爬電距離測量) |
Cord Anchorage(電源線拉力測試) |
Stability Test(穩定性測試) |
Steady Force Test(外殼應力測試) |
Impact Test(撞擊測試) |
Drop Test(跌落測試) |
Stress Relief Test(烤箱測試) |
Wall Mount Test(掛墻測試) |
Handle Test(手柄測試) |
Direct Plug-in(直插式產品測試) |
Batteries(電池測試) |
Temperature Test(溫升測試) |
Ball Pressure Test(球壓測試) |
Touch Current and Protective Conductor Current(接觸電流測試) |
Electric Strength after Temperature Test(溫升后的耐壓測試) |
Overload Test(過載測試) |
Abnormal Operation Test(異常操作測試) |
Components Fault Simulation(元件異常測試) |
參考如下,兩層是可以的,只要單層通過3000V耐壓測試
Insulation in thin sheet materials is permitted for SUPPLEMENTARY INSULATION and REINFORCED
INSULATION (see Figure F.15), irrespective of the distance through insulation, provided that all of
the following apply:
– two or more layers are used;
– the insulation is within the equipment ENCLOSURE;
– the insulation is not subject to handling or abrasion during OPERATOR servicing; and
– the requirements and tests of 2.10.5.7 (for separable layers) or 2.10.5.8 (for nonseparable
layers) are met.
For insulation in separable thin sheet layers, in addition to the requirements of 2.10.5.6,
– SUPPLEMENTARY INSULATION shall consist of at least two layers of material, each of which will pass the electric strength test for SUPPLEMENTARY INSULATION; or