Shanghai Daoqin Plastics Co., Ltd.

谈论 plastics electrical features and flame resistant property 时, large 家会经常听 to UL and Yellow Card and other 词语. lower for UL and Yellow Card introduction.
　　
■何谓 UL
　　
UL （ full is Underwriters Laboratories Inc.） is as is 第三者 立场 for industrial products safety property evaluation USA non 营利团体. in USA, has full 部州政府都 for electrical products 赋予 必 must UL 认定 义务, upper it already formed is USA upper general purpose standards.
　　 although formed is UL for 象, has types type more experiment/testing 科目, and its UL experiment/testing methods and specifications multiple more 样, is its large separation is below/following 4 types:
　　
1. for most products 列名服务（Listing）. this is for 象 人 electrical and other 消费者直接 use product 进行 服务. UL for products safety property 进行检查, if experiment/testing combined 格, toward outer published products already through UL safety 认定, 并允许该 products UL 认定标记.
　　
2. is for parts or material can 服务（Recognition）. parts, is by mono use products, printing electrical sheet/plate, pressure device and other. parts experiment/testing combined 格时, toward outer published products already through UL safety 认定, 并允许该 products UL 认定标记. for/regarding material, has different, is need through 判定材 material property can separation product grade. ratio plastics material property according to UL 94 standards evaluation, this versus 当于认 can 服务.
　　
3. classification 服务（Classification）. remove evaluation is combined UL standards outer, also evaluation is combined standards and outer standards. combined 格时, for outer published products already through 认定, 并允许 products use 认定标记.
　　
4. already and can products or parts also will 接受不定期 抽查, production products is and UL evaluation 时 结果 same. this type of 服务叫做 formed 果追踪服务（Follow up）.
　　
Yellow Card （ data mono ）
　　
Yellow Card is in upper can 时, in UL 注册 材 material or parts data mono. this data 汇集而 formed small 册子称做黄皮书. Yellow Card can from UL or production 厂家邮寄索取, in can from UL 网页直接查阅, can is non 常方便.
data 检索　　
UL -IQ页面 (English) http://data.ul.com/iqlink/　　
use “ UL -IQ”时: 　　
（a）进入 UL -IQ页面（http://data.ul.com/iqlink/）, again 进入“New user ＞[resister]”. 　　
（b）填写 has 关事项, use and 密码（ can 立即注册）. 　　
（c）返回 UL -IQ页面, selection “Return user ＞ [login]”. 　　
（d）填写 rigid rigid use and 密码进入网页. 　　
（e）进入检索页面, products and company and other necessary 词语进行检索. 　　
（f） from 候补一览 in selection material.
　　
data mono method 　　
due to UL Yellow Card 文字, and other table/sheet relatively is 独特, for reading 人 说 relatively difficult understanding. lower will for Yellow Card in main/primary inner 容 读 method and mono 词 意思进行记述, 请参照.
　　 data use 语说明
　　
small 结　　
  UL is full world 承认, as is 第三者 立场 for industrial products safety property evaluation 团体. 　　
  Yellow Card is UL experiment/testing 并认定, about/regarding safety property evaluation data. 　　
  Yellow Card also a large amount of about/regarding plastics products insulation property and safety property data.
　　
  UL data can in upper 检索.
use 语  含义  说明 
Color   color   
 NC is color （无 color color ）BK is black ALL is full color.  
Min. Thick.  
 试 sheet/slice most small thick degree  
  mono is mm. in upper Yellow Card in, sheet/slice thick degree is 3mm时, flame resistant property is 5VA. sheet/slice thick degree is 1mm时, flame resistant property is 5VB.  
Flame Class  
  flame resistant property  
  according to UL 94 standards 判定材 material flame resistant property water 平. according to HB, V-2, V-1, V-0 顺序, flame resistant property increase large. generally flame resistant material is V-0. remove evaluation methods outer, also setting upper grade 5V evaluation. as is 定位, flame resistant property 顺序依次 is V-0, 5VB, 5VA. due to 5V evaluation experiment/testing methods and versus ratio has different, therefore in 象"V-0, 5VA" that table/sheet 示进行 两 experiment/testing. flame resistant property HB < V-2 < V-1 < V-0 < 5VB < 5VA 
HAI  
  high electrical 流弧 发火 property  
  make high electrical electrical in sheet/slice 旁边飞. according to to is need 飞 次数, will material flame resistant property separation grade. grade 别数字越 small, material difficult 以燃烧. HAI次数 Yellow Card upper table/sheet 示120 above 060---119 130--- 59 215---29 3 small 于 15 4 
HWI  
  hot metal filament property   
  is Hot wire ignition shrink 略语. will filament in sheet/slice upper, make electrical from in through. according to to 开始燃烧 time, will material flame resistant property separation grade. to 开始燃烧 time 1~2 separation is 1 grade. to 开始燃烧 time 7~15秒钟者 is 4 grade. grade 别 数字越 large, material easy 燃烧. HWI time （ 秒 ） Yellow Card upper table/sheet 示120 above 060 --- 119 130-- 59 215--29 37 --14 4 small 于 7 5 
RTI  
  versus for ensure temperature degree 也叫" versus for temperature degree 指数" 
  is UL ensure material use most high temperature degree. mono is ℃. has 时也 标注 is TI（ ensure temperature degree ）. Elec table/sheet for/regarding electrical features TI; imp table/sheet has impact negative TI; str table/sheet 示静态 lower TI.  
IEC  
 国际 electrical standards 会议 
  is electrical field/area in standards 化组织. versus non electrical field/area ISO, field/area ITU.  
GWIT  
 灼 hot filament temperature degree  
  is Glow wire ignition temparature shrink 略语, is IEC规定 燃烧 property indicators 之一.  
GWFI  
 灼 hot filament 燃烧指数 
  is Glow wire flammability index shrink 略语, is IEC规定 燃烧 property indicators 之一.  
CTI  
  versus ratio resistant electrical 起痕指数 
  is Comparative tracking index shrink 略语, is table/sheet resistant electrical property indicators. in for insulation material surface add electrical pressure lower, make electrical understanding liquid 滴落于 electrical molding product surface, evaluation to electrical pressure is 止不发生漏 electrical bad. according to resistant pressure value from 0 to 5进行 separation grade. 数字越 small, resistant electrical property high. CTI (伏特) Yellow Card upper table/sheet 示600 above 0400 ---- 599 1250 ---- 399 2175 ----249 3100----174 4 small 于 100 5 
PTI  
  ensure resistant electrical 起痕指数 
 Proof tracking index shrink 略语. experiment/testing methods and CTI same. currently, for resistant pressure value from 0 to 5进行 separation grade. PTI and CTI different in 于: CTI改变施 add electrical pressure, 求 材 material most large resistant pressure value, from 而决定起痕指数. 而PTI experiment/testing electrical pressure is 一 点, table/sheet 示该点 is can resistant electrical pressure. 换言之, false 设PTI is 150V, 则说明该材 material electrical property can resistant to 150V, but also in can can ratio value also high. 另一方面, due to CTI求 is most large resistant pressure value, tool has large 于标注 value force.  
HVTR  
  high electrical 弧起痕 speed degree  
 High voltage arc tracking rate shrink 略语. table/sheet mono time inner 痕迹行进 距离. value separation grade, value small, speed degree slow. HVTR scope/range （mm/min） Yellow Card upper table/sheet 示0 ---10 010.1--- 25.4 125.5 --- 80 280.1--- 150 3 large 于150 4 
D495  
 ASTM- D495 
 ASTM made resistant electrical property standards. D495 scope/range （秒） Yellow Card upper table/sheet 示420 above 0360---419 1300--- 359 2240--- 299 3180 ---239 4120---179 560---119 6 small 于 60 7 
IEC:BP  
 IEC版球 pressure temperature degree  
 IEC made standards 之一. remove less plant/unit and usually pressure temperature degree different outer, its it plant/unit basic same.