Robert, I applaud your obvious desire to adhere to the industry standards, and the R56 manual is definitely a valuable resource. But, I must reinforce a comment I made earlier: Any requirement published in the R56 manual must be compared to any Federal, State, or local jurisdictional requirements that may apply- over and above whatever the site owner declares is a requirement.
For example, every repeater station I install in the State of California is in Seismic Zone 4, which means that I must comply with the Uniform Building Code requirements for Zone 4 bracing. In California, the UBC is codified in Title 24 of the California Code of Regulations, which trumps any lesser requirements- including those of the site owner. If the site owner is ignorant of any applicable Federal or State mandates on seismic bracing (for example), that will not shield him- or you- from liability if another site tenant suffers damage because an unsecured rack damaged his equipment during an earthquake. Not only must my equipment be bolted solidly to the concrete floor (or subfloor), but it must also be solidly braced at the top, either against the ceiling or with a cross-brace to the wall. The bottom line is that a site owner/manager is not necessarily knowledgeable about the current Building, Electrical, and Safety Codes that apply to that local jurisdiction. Although you may feel confident of total compliance merely because the site owner says you're okay, he or she may be woefully ignorant of far more stringent requirements that you must ethically comply with. If a serious accident occurs, the fact that you did only what the site owner asked for, even though you knew that it wasn't stringent enough, will not shield you from liability. Regarding the wheeled cabinet, my vote is to remove the wheels and solidly anchor the cabinet to the concrete floor, as a minimum. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of georgiaskywarn Sent: Monday, January 19, 2009 7:45 AM To: [email protected] Subject: [Repeater-Builder] Re: Written "standard" for installs at radio and cell sites? Thanks Guys for the quick responses. We are lucky to have our "fellow" who does this for a living I guess then (and knows the standards). Seems to be alot in those standards. We will comply with everything including what the site owner (DNR...soon to be GA State Patrol) requires. If someone has this manual...could you look under - "9.6 Equipment Anchoring" and see if the cabinet must be physically on the ground, or if I can use a "turnbuckle", two or four...to make it "bolted" to the floor. http://bacoenterprises.thomasnet.com/viewitems/turnbuckle-assemblies/stub-en d-turnbuckles?&forward=1 <http://bacoenterprises.thomasnet.com/viewitems/turnbuckle-assemblies/stub-e nd-turnbuckles?&forward=1> Thought about using this by screwing one end of the stubs into the floor...then drilling holes into the bottom of the cabinet. Run the stubs into the bottom and put nuts on the stubs running up into the cabinet bottom. I know it would work...but just wasn't sure what the "code" said. Also looking to see what it might say on the duplexers being mounted outside the cabinet. May have to just "bolt" another short cabinet on top. Thanks, Robert --- In [email protected] <mailto:Repeater-Builder%40yahoogroups.com> , "wb6fly" <wb6...@...> wrote: > > Robert, > > Motorola has published the "R56 Manual" for many years, and it has > become the "bible" for many cellular and repeater installations. It > covers almost every aspect of site design, construction, and > maintenance. There are a few fine points of electrical grounding > that do not comply with the National Electrical Code, so you should > always check with your local building inspector before installing any > grounding conductors. > > The 350-page print manual is publication number 6881089E50, and is > currently priced around $90. The R56 manual is also available on CD- > ROM as publication number 9880384V83, for about $70. There are other > manuals that are valuable, and more information is here: > <www.repeater-builder.com/rbtip/radiositerules.html> > > The National Electrical Code devotes an entire chapter to the proper > installation, grounding, and protection of radio and television > equipment- including Amateur Radio stations. This guidance is in > Article 810 of the 2005 NEC- which is the current edition that has > been ratified by most states. > > 73, Eric Lemmon WB6FLY > > -- In [email protected] <mailto:Repeater-Builder%40yahoogroups.com> , "georgiaskywarn" <kd4ydc@> > wrote: > > > > Hi Folks, > > Is there such a beast? We are getting ready to move into a new site > > and will be installing everything from installing antennas, > hardlines > > to the repeaters. One of the fellows in our ham group does this > for a > > living, however that doesn't help me and the other fellow dressing > out > > the repeaters...in the cabinets, in our own hamshacks before. > > > > The term "Motorola Standard" keeps being used. Anyone heard of > this? > > I know there are certain electrical codes that must be > followed...but > > Moto Codes? > > > > I have a 6ft cabinet on wheels right now. It was mentioned that the > > cabinets must be bolted to the floor. Hoping that I do not have to > > take the wheels off (real heavy!). Also hoping just to use some > sort > > of "J" hook to make that happen...but not sure if it is "code". > Also > > with the other cabinet we're putting in...we were told it is not > > "code" to mount the cans on the outside of the cabinet. > > > > Is there something written on the web folks could point us to? > > > > Thanks, > > Robert Burton > > KD4YDC > > DEC NWS / Peachtree City, GA Skywarn > > www.georgiaskywarn.com > > >
