fyi, aside from form factor, whats pushing this (also, boss approved an MT SS type cost) is that questionable ground planes stop sync from getting to radios from packetflux power/syncinjectors if you bond shields under certain circumstances up top If i float each cable through an SS that is isolated (and ungrounded) up top, the bbdge gives me enough copper to get a "ground" withough bonding to a common point or structure and losing sync pulse, which is win/win since my contractors hate my cross connect, like really hate, as in ill get billed more if they have to keep dicking with them
On Tue, May 1, 2018 at 11:55 PM, Steve Jones <[email protected]> wrote: > IIRC its surface area that matters, with heat tolerance, essentially if I > meet the surface area of the BBDGE copper shield, anything beyond would be > waste wouldnt it? like bonding 2 #10 with a #0 is still effectively #10? > (without being a connector loss dick) Im not talking about bonding the lug > to ground. > looking to replace to attached with something like https://www.mccowntech. > com/product/outdoor-towerwall-mount-8-circuit-ethernet-surge-protector/ > but the https://www.mccowntech.com/product/outdoor-towerwall- > mount-8-circuit-ethernet-surge-protector/ i doubt is big enough for > bbdge, looks more like a UBNT tough cable or apex 9 job > > On Tue, May 1, 2018 at 6:28 PM, <[email protected]> wrote: > >> Yeah... hard to do though. Any ground helps. I used to do telco NIDS >> (actually we called them protectors back then) with #12 or #14 back in the >> day. I think #10 for an Ethernet surge protector is adequate. I know >> various regulatory authorities etc want a #6 it just is not practical to do >> for small devices. They treat a small surge protector the same as a power >> entrance ground. >> >> *From:* Adam Moffett >> *Sent:* Tuesday, May 1, 2018 11:39 AM >> *To:* [email protected] >> *Subject:* Re: [AFMUG] Smallest gauge shield to ground >> >> R56 Chapter 5. >> https://sites.auburn.edu/admin/facilities/spw-bid-calendar/ >> 11-150%20AU%20Regional%20Airport-Construct%20a%20Self-Supporting%20Radio% >> 20Tower/Project%20Documents/1/Motorola_R56_2005_manual.pdf >> >> "" >> *Telecommunication cable metallic shields shall be bonded to the site’s >> grounding electrode system as* >> *described herein. Where outside facility telecommunication cables are >> configured for a standard* >> *entrance, the metallic members of all incoming telecommunication cables, >> including paired-conductor* >> *and optical fiber cable, shall be grounded (earthed) to the MGB, either >> directly or through a SSGB at* >> *the facility’s entrance point. Each metallic member shall be effectively >> bonded to the grounding point* >> *with a 16 mm2 csa (#6 AWG) or coarser green-jacketed grounding >> conductor, or with a transmission* >> *line ground kit, using bonding methods described within this chapter. * >> "" >> >> So they say #6 AWG. >> >> I'm an unqualified rando on the internet, but I'd say if you grounded it >> with anything at all then you did better than most. >> >> >> >> ------ Original Message ------ >> From: "Steve Jones" <[email protected]> >> To: [email protected] >> Sent: 5/1/2018 11:40:15 AM >> Subject: [AFMUG] Smallest gauge shield to ground >> >> >> Whats the smallest gauge stranded ground i can use to bond bbdge copper >> shield to the ground lug on surge suppressors? Ive been using #8 but it >> gets cumbersome in a 12 port cross connect enclosure, i dont have footprint >> for a larger enclosure and my contractors hate my design >> >> >
