Add to Favorites
|
Set for homepage
Home
About NTC
About NTC
Corporate Culture
NTC Advantage
Authorization
Cooperation Organization
Global Serveices
Safety Services
EMC Services
Energy Efficiency
Chemistry Testing
Entrust Testing
System Approval
Training Services
Service Center
Certificate Search
Procedure
Docuents Needed
Application Form
Apply online
Standard Search
News
Industry News
Technical standard
Contact us
Join us
Chinese
Industry News
Technical standard
Technical standard
Plastic for UL requirement
LED
燈或燈具申請
UL
的防火外殼塑膠料選用說明
LED燈或燈具的外殼如果定義是防火外殼,外殼的塑膠(含Diffuser)用料則符合耐燃等級V-0 或5VA或以上的等級,以上要求對許多廠商都會造成
1. 成本過高
2. 透光率不佳導致發光效率降低
以上問題可以採用以下對策解決
3. 使用輸出被評估 LVLE (Low Voltage Limited Energy) 的LED Driver 或
4. 輸出是Class 2線路的LED Driver 或
5. 輸出是LPS線路的LED Driver
LED燈或燈具若使用符合以上特性的LED Driver,輸出後端的外殼可以不需要防火外殼,且外殼塑膠(含Diffuser)用料就可以選用耐燃等級HB以上的即可。
Copyright @ 2020
New Testing Centre
All Rights Reserved.
Power By:
chuge8.com
粤icp备18139831号