Hello: My HP48G calculator (very low voltage) users manual has a Declaration of Conformity: For safety, it declares compliance to EN 60950 & IEC 950.
It also caries the NOM & CE marks...of course these marks address issues other than electrical safety also, but... Hazardous Energy? Scott I believe has a point here. Just my humble observations. Mel Pedersen Midcom, Inc. Homologations Engineer Phone: (605) 882-8535 mpeder...@midcom-inc.com Fax: (605) 882-8633 Mel Pedersen Midcom, Inc. Homologations Engineer Phone: (605) 882-8535 mpeder...@midcom-inc.com Fax: (605) 882-8633 -----Original Message----- From: Lacey,Scott [mailto:sla...@foxboro.com] Sent: Thursday, January 13, 2000 9:23 AM To: 'fwhitfi...@rheintech.com' Cc: 'emc-p...@ieee.org' Subject: RE: LVD voltage range. John, With a 12V battery system, you will have to address the issues of hazardous energy - ie.the heating effects of battery current under short-circuit conditions. Even a small battery pack can heat a wedding ring nearly white hot. Scott Lacey > -----Original Message----- > From: fwhitfi...@rheintech.com [SMTP:fwhitfi...@rheintech.com] > Sent: Thursday, January 13, 2000 9:44 AM > To: emc-p...@ieee.org > Subject: LVD voltage range. > > > Hello all, > > Does a hand-held field device that operates mainly on 12Vdc from a > group of batteries and alternatively uses an AC/DC adapter need to be > assessed for safety according to the LVD? > > I read somewhere that for LVD the DC voltage should be between 75 and > 1500V. Does this mean that such a device does not need to be evaluated > for safety at all ? A client is awaiting a response from me in a > couple of hours so I would appreciate any views on this matter. > > Thanks for your usual co-operation. > > John Whitfield > Safety Engineer > Rhein Tech Labs > > > --------- > 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). > --------- 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). --------- 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).
