Amund: Is there a definition somewhere of what does and doesn't qualify as an IMO vessel?
Thanks, Jim Eichner, P.Eng. Compliance Engineering Manager Xantrex Technology Inc. e-mail: [email protected] web: www.xantrex.com Any opinions expressed are those of my invisible friend, who really exists. Honest. No really. Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. From: [email protected] [mailto:[email protected]] Sent: Thursday, September 18, 2003 2:25 PM To: Sam Wismer; 'EMC 2' Subject: SV: EN 60945 Agree with you Sam. I can not see that you have to install "IEC60945 approved" equipment into a bass boat. And far as I understand, IEC60945 only applies for equipment placed in IMO ships. Bass boats are not IMO ships ...... But it could happened that your client who manufactures fish locating equipment want to sell his equipment to IMO ships as well ... Echo-sounding equipment (can be used in fishery purposes) is listed in the EU marine Equipment Directive and EN 60945 applies. Amund > -----Opprinnelig melding----- > Fra: Sam Wismer [mailto:[email protected]] > Sendt: 18. september 2003 22:42 > Til: [email protected]; 'EMC 2' > Emne: RE: EN 60945 > > > Amund, > Thanks for the information. I can understand and appreciate the > importance of that on ocean going vessels. However, I don't mean to be > cynical, but is a bass boat considered to have what equates to a bridge > on a cruise ship or ocean liner? > > After all, this is a bass boat used on a small lake with one VHF radio. > > > Kind Regards, > > > > > > > > > > Sam Wismer > > Engineering Manager > > ACS, Inc. > > > > *Tel: (770) 831-8048 > > *Fax: (770) 831-8598 > > *Web: www.acstestlab.com > > *[email protected] > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] > Sent: Thursday, September 18, 2003 3:08 PM > To: Sam Wismer; EMC 2 > Subject: SV: EN 60945 > > Hi Sam, > > Quote IEC60945: > > "This standard specifies minimum performance requirements, methods of > testing and required > test results for general requirements which can be applied to those > characteristics common to > all equipment described hereunder: > a) shipborne radio equipment ............. > b) shipborne navigational equipment ........... > c) for EMC only, all other bridge-mounted equipment, equipment in close > proximity to > receiving antennas, and equipment capable of interfering with safe > navigation of the ship > and with radio-communications (see IMO Resolution A.813)". > > So, it seems that the EMC part of IEC60945 applies to all equipment > installed on the bridge. The special case regarding EMC is that the > radiated > emission limit within the band 156-165MHz is 24dBuV/m @ 3m distance. > > Quote IEC60945: > "Above 30 MHz all ships carry a VHF receiver operating in the band 156 > MHz - > 165 MHz. For > the VHF band IMO requires a receiver sensitivity of 2 ?V e.m.f which > equates > to a field > strength of 3 ?V/m at the antenna. For a typical separation of 15 m > between > the bridge and > the VHF antenna, the free-space field strength at 3 m is 15 ?V/m (23,5 > dBV/m) to give 3 > ?V/m at the antenna, so a tighter limit is a requirement for operation > of > VHF communications > (figure 4)". > > > Amund > > > -----Opprinnelig melding----- > Fra: [email protected] > [mailto:[email protected]]Pa vegne av Sam Wismer > Sendt: 18. september 2003 20:26 > Til: EMC 2 > Emne: EN 60945 > > > Hello Group, > Been a while.. > > Hope all has been well with everyone. > > I have a client who manufactures fish locating equipment designed to be > used > on recreational vessels such as your standard bass boat. My client has > been > getting his equipment tested to EN 60945 because it used in the vicinity > of > navigational equipment that is required to be on the craft, such as the > VHF > radio. On a bass boat used in the local lake, that is about the extent > of > the navigational equipment on the boat. It is my opinion that EN 60945 > is a > bit extreme for this equipment, in this environment - the local lake. > Also > since his equipment is not navigational equipment, EN 60945 should not > even > apply. His or his previous labs, reasoning, for applying EN 60945, was > that > since it was in the vicinity of navigational equipment, it should apply. > > Any comments? > > Thanks > > > Kind Regards, > > > Sam Wismer > This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
