安規(guī)基礎(chǔ)知識(shí)及吸塵器蒸汽拖把安規(guī)的特殊要求PPT學(xué)習(xí)教案

1、會(huì)計(jì)學(xué)1安規(guī)基礎(chǔ)知識(shí)及吸塵器蒸汽拖把安規(guī)的安規(guī)基礎(chǔ)知識(shí)及吸塵器蒸汽拖把安規(guī)的特殊要求特殊要求第1頁(yè)/共37頁(yè)第2頁(yè)/共37頁(yè)第3頁(yè)/共37頁(yè)第4頁(yè)/共37頁(yè) 所有可拆部件全部要拆掉不得觸及帶電部件，功能絕緣，或僅用油漆，搪瓷，普通紙，紡織品或氧化層隔離的帶電部件器具的各個(gè)面都要進(jìn)行測(cè)試，除非器具大于40Kg且正常工作時(shí)放于地面的測(cè)試時(shí)一般不加力，如果開(kāi)口處不能容許不加力的試驗(yàn)指伸入時(shí)，需加20N的力于試驗(yàn)指（要使整個(gè)關(guān)節(jié)處于水平位置）。當(dāng)試驗(yàn)指進(jìn)入器具后，要活動(dòng)其關(guān)節(jié)到最不利位置II類器具或結(jié)構(gòu)，不能碰到基本絕緣 第5頁(yè)/共37頁(yè)第6頁(yè)/共37頁(yè) 在II類器具或II類結(jié)構(gòu)中，從開(kāi)口處往器具里伸

2、，不得碰到帶電件 如果金屬外殼有涂層或者非導(dǎo)電層時(shí)，這些開(kāi)口部份也要用上述方法測(cè)試第7頁(yè)/共37頁(yè)第8頁(yè)/共37頁(yè)帶電件帶電件基本絕緣基本絕緣可觸及部分可觸及部分接地接地第9頁(yè)/共37頁(yè)帶電件帶電件基本絕緣基本絕緣可觸及部分可觸及部分附加絕緣附加絕緣（可觸及部分與帶電件之間也可為加強(qiáng)絕緣）（可觸及部分與帶電件之間也可為加強(qiáng)絕緣）第10頁(yè)/共37頁(yè)可導(dǎo)電部件（如金屬）可導(dǎo)電部件（如金屬）器具器具可觸及部分可觸及部分帶帶電電件件Back第11頁(yè)/共37頁(yè)可可觸觸及及部部分分第12頁(yè)/共37頁(yè)第13頁(yè)/共37頁(yè)第14頁(yè)/共37頁(yè)帶電件絕緣材料22.31&26.11中有提到導(dǎo)線、螺母、彈簧等因

3、為脫落而導(dǎo)致電氣間隙和爬電距離小于附加絕緣的要求。一般可采用勾焊、加扎帶，套管等機(jī)械方式加以固定來(lái)保證該項(xiàng)要求第15頁(yè)/共37頁(yè)外外殼殼可觸及部份內(nèi)部導(dǎo)線B要符合附加絕緣要求B1mm帶電件可觸及部份A圖示要符合加強(qiáng)絕緣要求A2mm；當(dāng)帶電件為有基本絕緣緣的部件時(shí)則需滿足附加絕緣要求A1mm可觸及的固態(tài)絕緣如厚度不足，需要做21.2刮擦試驗(yàn)第16頁(yè)/共37頁(yè)2.0n加強(qiáng)絕緣加強(qiáng)絕緣8.03.0n繞組繞組8.03.5n附加絕緣附加絕緣4.01.5n內(nèi)部導(dǎo)線用內(nèi)部導(dǎo)線用2N的力推，外的力推，外殼用殼用30N的力推的力推第17頁(yè)/共37頁(yè)Dia. 50mm標(biāo)準(zhǔn)中對(duì)“防機(jī)械傷害”的考核（條款20）第18

4、頁(yè)/共37頁(yè)第19頁(yè)/共37頁(yè)第20頁(yè)/共37頁(yè)第21頁(yè)/共37頁(yè)第22頁(yè)/共37頁(yè)n(peak) I類器具0.75mA 第23頁(yè)/共37頁(yè)第24頁(yè)/共37頁(yè)n試驗(yàn)周期：1分鐘n其他：耐壓試驗(yàn)時(shí)必須防止基本絕緣或者附加絕緣承受過(guò)度電應(yīng)力第25頁(yè)/共37頁(yè)第26頁(yè)/共37頁(yè)漏電起痕第27頁(yè)/共37頁(yè)第28頁(yè)/共37頁(yè)5.101 Appliances incorporating heating elements are tested as heating appliances even ifthey incorporate motors.1. 按電熱產(chǎn)品測(cè)試，正常溫升按最大標(biāo)稱功率的1.15倍進(jìn)行

5、測(cè)試，如果標(biāo)稱220-240V， 50Hz，1000W. 額定最大功率為：(240/230)2*1000W第29頁(yè)/共37頁(yè)正常溫升測(cè)試：Appliances are operated until steady conditions are established.Appliances generating steam are also operated without emission of steam.蒸汽噴以及不噴的狀態(tài)都要考慮，直到穩(wěn)定狀態(tài)建立。第30頁(yè)/共37頁(yè)防水測(cè)試：防水測(cè)試： Class I and class II hand-held appliances dispensin

6、g liquids shall be at least IPX7. Otherappliances shall be at least IPX4. Class III appliances not exceeding 24 V can be IPX0.器具要求IPX4， IPX4測(cè)試，手持式蒸汽清洗機(jī)要求360度，10min，放在地上或者桌上的，測(cè)試180度，5min.第31頁(yè)/共37頁(yè)手持式器具以及背包式器具的跌落測(cè)試: hand-held appliances and hand-held parts of appliances incorporating electricalcompone

7、nts in the most unfavourable position at a height of 2 m and dropping them onto aconcrete floor; appliances carried on the operators body in the most unfavourable position at a height of1 m and dropping them onto a concrete floor.跌落高度：手持式2m，背包式1m.要求跌落在水泥地板上跌落：3次第32頁(yè)/共37頁(yè)壓力測(cè)試（壓力式器具）：The maximum press

8、ure occurring during the test of Clause 11 is measured. All pressureregulatingdevices that operated during the test are rendered inoperative and the pressuremeasured again. The pressure shall not exceed three times the pressure measured during thetest in Clause 11. Any pressure-limiting protective d

9、evice is then rendered inoperative andthe pressure in the boiler is raised hydraulically to five times the pressure measured originallyor twice the pressure measured with the pressure-regulating device rendered inoperative,whichever is higher. The pressure is maintained for a period of 60 s. There s

10、hall be noleakage from the boiler.Steam cleaners incorporating hoses and having a device regulating the steam supply areoperated as specified in Clause 11, but with all pressure-regulating devices operating duringthe test of Clause 11 rendered inoperative. The steam outlet is sealed and the devicere

11、gulating the steam supply is opened. There shall be no leakage from the hose except at anintentionally weak place within the enclosure of the boiler. If this occurs, the test is repeatedon another appliance that shall also leak in the same way.對(duì)鍋爐的測(cè)試，正常工作時(shí)壓力的5倍與非正常工作時(shí)壓力的2倍，取最大值，鍋爐承受該壓力60秒，不能有泄露。對(duì)管子的

12、考核，正常工作時(shí)動(dòng)作的所有限壓裝置失效，測(cè)試到壓力保護(hù)裝置動(dòng)作為止，管子不能有任何泄露。（另外非正常的壓力不能超過(guò)正常壓力的3倍） 第33頁(yè)/共37頁(yè)壓力測(cè)試（瞬間式器具-常見(jiàn)的就是蒸汽拖把-直通大氣的）：The steam outlet of instantaneous steam cleaners is sealed and the pressure in the watercontainer is raised hydraulically until the pressure-limiting protective device operates. Thepressure shall not exceed three times the pressure measured during the test of Clause 11.The outlet of the protective device is then sealed and the pressure is further raised to twicethe previous valu