Re: LCD Displays and Safety

2003-09-09 Thread John Woodgate
I read in !emc-pstc that Crabb, John wrote (in <1D4B655D707B2549AFCD8C686631657508AC2BC2@SGBDUN200>) about 'LCD Displays and Safety' on Tue, 9 Sep 2003: >I spoke to some committee members who seemed to think it was >included because LCDs couldn't withstand the impact test ! I believe that was

RE: LCD Displays and Safety

2003-09-09 Thread Crabb, John
You will have noted in IEC 60950-1 Clause 4.2.5 Impact Test, that it states "the test is not applied to flat panel displays or to the platen glass of equipment (for example, copying machines)". The waiver for flat panel displays appeared in the third edition of IEC 60950 - some time ago I trawled

Re: LCD Displays

1999-09-27 Thread Peter Merguerian
From: duncan.ho...@snellwilcox.com Date sent: Fri, 24 Sep 1999 17:22:50 GMT To: Subject:LCD Displays Send reply to: duncan.ho...@snellwilcox.com > > I have a product that has an LCD display with an Inverter that operate

Re: LCD Displays

1999-09-27 Thread Rich Nute
Hi John: > Rich, you said below "Assuming you are using IEC 60950, a fire > enclosure is required for any circuit exceeding the limits of ELV, > independent of available current or power." > > Why did you mention "exceeding the limits of ELV" ?Surely specific > compon

RE: LCD Displays

1999-09-27 Thread Gary McInturff
Gary -Original Message- From: Ing. Gert Gremmen [mailto:cet...@cetest.nl] Sent: Sunday, September 26, 1999 12:53 AM To: duncan.ho...@snellwilcox.com; emc-p...@majordomo.ieee.org Subject: RE: LCD Displays Importance: High Hello Duncan and group, If your equipment is in the scope of EN

RE: LCD Displays

1999-09-27 Thread Crabb, John
tland.ncr.com Tel: +44 (0)1382-592289 (direct ). Fax +44 (0)1382-622243. VoicePlus 6-341-2289. > -Original Message- > From: Rich Nute [SMTP:ri...@sdd.hp.com] > Sent: 24 September 1999 19:27 > To: duncan.ho...@snellwilcox.com > Cc: emc-p...@majordomo.ieee.org > Sub

RE: LCD Displays

1999-09-26 Thread Ing. Gert Gremmen
Hello Duncan and group, If your equipment is in the scope of EN 60950 (IEC 60950) or UL 950, than it depends of the power source feeding it The matters around FIRE ENCLOSURES are dealt with in paragraph 4.4.5 No Fire enclosure required for Par 4.4.5.2 3th components in a SECONDARY CIR

Re: LCD Displays

1999-09-24 Thread Rich Nute
Hi Duncan: > 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 you are using IEC 60950, a fire enclosure is required for any circuit exceedi