工业控制设备_UL508讲解.pptx

工业控制设备——UL508标准认证申请培训Course Agenda主要培训内容 1.Introduction to UL(介绍UL） 2. Introduction to UL Certification Process( UL产品审核流程介绍) 3.UL508涉及产品及其CCN 4.UL508概略介绍—术语和结构要求 5.Insulation System applied in UL508绝缘系统使用 6.电阻产品UL508认证要求 7.电抗产品UL508认证要求 8.Questionhowever , temporary conductivity caused by condensation may be expected- Pollution Degree 3 – Conductive pollution occurs , or dry, nonconductive pollution occurs that becomes conductive due to condensation that is expected注：用于工业产品，UL默认的污染等级为PD3(最严格）第四篇 UL508术语和结构要求第五节 结构要求Scope (Par.1)(产品认证范围）- Rated 1500 volts or less- Ambient temperature of 0-40℃ unless specifically indicated for use in other conditions 注:“0-40℃”为认证的环境温度，运行客户有特殊要求，比如将温度提 升到“55℃”- For use in ordinary locations in accordance with the National Electrical Code , NFPA 70,and Canadian Electrical Code , Part 1 第四篇 UL508术语和结构要求Components（关键零部件）- Terminal Block , Wire Connector and Connector- PWB andb) Employ materials that are evaluated for the useProtection Against Corrosion (Par.13)(防腐蚀）- Iron and steel parts shall comply with the requirements of protection against corrosion 注：钢、铁材质需满足防腐蚀要求第四篇 UL508术语和结构要求Provision for Mounting (Par.14)(可供安装的方式）- Provisions shall be made for securely mounting industrial control equipment to a supporting surface- A bolt , screw , or other part used to mount a component of the equipment shall not be used for securing the equipment to the supporting surface第四篇 UL508术语和结构要求Insulating Material (Par.15)(绝缘材料）- Direct physical contact with the uninsulated live part - Physically support or maintain the relative position of the uninsulated live part with respect to spacing requirements第四篇 UL508术语和结构要求Insulating Material (Par.15)(绝缘材料）- Generic Materials for direct support of uninsulated live parts第四篇 UL508术语和结构要求Insulating Barriers (Par.37) (绝缘阻挡件）- Be a generic direct support material provided in the thickness indicated in Table 15.2;- Be a generic barrier material provided in the thickness indicated in Table 37.1 when the insulating barrier does not physically support or maintain the relative position of the uninsulated parts involved; or第四篇 UL508术语和结构要求 Insulating Barriers (Par.37) (绝缘阻挡件）- Comply with the direct support requirements in Table 15.1 at a thickness that meets at least one of the following :1)Not less than 0.71 mm thick;2)Not less than 0.33 mm thick plus one-half required clearance spacings when the barrier is provided in lieu of required clearance distance only; or 3)Capable of withstanding the 5000v ac Dielectric Strength Test in accordance with the internal barrier requirements in the Standard for Polymeric Materials – Use In Electrical Equipment Evaluations,UL746C第四篇 UL508术语和结构要求第四篇 UL508术语和结构要求Live Parts (Par.17)(导电部件）- A current – carrying part shall have mechanical strength and ampacity- An uninsulated live part , including a terminal , shall be secured to its supporting surface 第四篇 UL508术语和结构要求Internal Wiring(Par.21)(内部绕线）- Rated for voltage and temperature conditions of use – CSA requires min.90℃ wire- Minimum 0.08 mm think insulation if it subjected to movement, fiexing , or handling during its intended use and maintenance - Routed in wireways or otherwise away from moving parts , sharp edges ets- Wiring and connections shall be protected from mechanical damage during installation第四篇 UL508术语和结构要求 Spacing(Par.36)- Column A for General Use(电气间隙和爬 电距离，一般用A列来审核）第四篇 UL508术语和结构要求Column B- Devices having Limited Ratings(B列，额定值满足如 下限定：）（36.7)- Rated 1 horsepower (746 w output) or equivalent FLA, or less- 720 volt – amperes break pilot duty or less- Not more than 15 amperes at 51 – 150 volts- Not more than 10 amperes at 151 – 300 volts- Not more than 5 amperes at 301 – 600 volts- More than one load provided the total load connected to the line at one time does not exceed 2 horsepower (1492 W output),1440 voltamperes , or have a current rating greater than 30 amperes at 51-150 volts , 20 amperes at 151-300 volts , or 10 amperes at 301 – 600 volts第四篇 UL508术语和结构要求Column C – Other Devices (C列，额定值满足如下要求：）（ 36.8）- 1 horsepower (746 W output) or less- 2000 volt – amperes or less per pole- Current rating per pole of 15 amperes or less at 51 – 150 volts- Current rating per pole of 10 amperes at 151 – 300 voltsColumn D – All Circuits below 50 volts(D列 电压低于50V）第四篇 UL508术语和结构要求 Clearance and Creepage Distances(Par.39)- Alernate Method using UL 840(使用UL840审核电气间隙和爬电距离) For Clearances : (电气间隙）- Overvoltage Category (Most OC lll but OC ll in certain case)- Phase – to – ground Rated System Voltage- Impulse Test , per UL 840 or R/C (XUHT2) MOV第四篇 UL508术语和结构要求第四篇 UL508术语和结构要求For Creepages ( Par .39) (爬电距离） - R/C (ZPMV2) Printed wiring board with CTI of 100 & Direct Support with CTI of 175 - Unless specified elsewhere in this Standard, pollution degree 3 - Printed wiring 。