Neven – There *may* be building code requirements that you will have to meet. Not sure what those are. I suggest a review of the NEC2008.
Chas ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Tuesday, March 24, 2009 3:32 PM To: [email protected] Subject: Security Camere Coax Grounding Can anyone help me understand what would be the requirement, preferably worldwide worst-case if possible, for connecting the outer conductor ("shield") of the coaxial cable (RG59) in a security-camera application? The cable can be up to 2000 ft (~ 600m) long, between the central unit (inside the building) and the remote camera (anywhere within the reach). The application can be anything from industrial to apartment buildings. Can I (or do I have to) connect the outer conductor to the safety ground (enclosure) on both ends? .. on one end (which?), etc. Alternatively, do I need to provide safety isolation from the outer conductor to the safety GND (enclosure?), how much, on which end, what kind of caps to GND can I use for EMI if I need safety isolation, etc.? I am asking strictly from the safety/regulatory hard requirement point of view, not trying to discuss which would be better for EMC. Is there an simple answer? Did I miss any key info or question? Thanks, Neven - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
