From: duncan.ho...@snellwilcox.com Date sent: Fri, 24 Sep 1999 17:22:50 GMT To: <emc-p...@majordomo.ieee.org> Subject: LCD Displays Send reply to: duncan.ho...@snellwilcox.com
> > I have a product that has an LCD display with an Inverter that operates at > 100Khz 2KV and I believe is capable of supplying 6.5mA The question is does it > require a fire enclosure? Assuming product is ITE/Telecom equipment, yes you need a fire enclosure if the power is not limited. If you limit the power to the LCD in accordance to UL1950/EN 60950, you will need to provide a fire enclosure in the unlimited circuit including any overcurrent protective devices to comply with the non-inherently power source limitation requirements; your LCD and bezels then become decorative parts which requires a minimum HB flammability rating. > If it does what are the requirements for the flamability of the screen and any > plastic protective covers fitted to it. The screen is quite large, about the > size of a laptop PC screen. Perhaps some laptop PC manufacturers might have > some > ideas? are there any other things I must consider when using such a device > apart > from, obviously, insulation of the HT. VV If LCD is not power limited, a minimum V-1 rating is necessary for the enclosure (assuming your equipment is less than 18kg and not stationary or fixed). Protective covers if not part of the fire enclosure can be rated minimum HB. > Regards, > Duncan. > > > --------- > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > PETER S. MERGUERIAN MANAGING DIRECTOR PRODUCT TESTING DIVISION I.T.L. (PRODUCT TESTING) LTD. HACHAROSHET 26, P.O.B. 211 OR YEHUDA 60251, ISRAEL TEL: 972-3-5339022 FAX: 972-3-5339019 E-MAIL: pe...@itl.co.il Visit our Website: http://www.itl.co.il --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
