I'm not sure how others might answer this, but here goes. Unless water towers are constructed differently than those I have dealt with, they are by nature a solidly grounded structure.
Having said that, the only problem I would see is having any ungrounded metal on the side of that tower which could build up excess electrons and create a streamer towards the clouds and invite a strike. I have never looked at a Canopy 900. Does it have a ground lug? If so I would take that right to a bare metal spot on the tower. Make sure the antenna (external) is solidly grounded to the tower structure as close as you can accomplish. They typically use epoxy paint to paint such monsters, so you would have to check with the owners where they want you to ground, stressing you want the ground bonded as close to your equipment as possible. I would put the equipment on a standoff away from the tower if possible. They will have to paint the tower again during the lifetime of your equipment. I hope some of this helps. Friendly Regards, Mike Mike Gilchrist Disruptive Technologist Advanced Wireless Express P.O. Box 255 Toledo, IA 52342 239.770.6203 [email protected] -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bobby Burrow Sent: Thursday, July 29, 2010 8:57 AM To: WISPA General List Subject: [WISPA] Water Tower grounding Ok, since we have been talking grounding, what would be the proper grounding method for a 'typical' water tower (bowl with maintenance rail and ladder up the leg). I have a Canopy 900 AP with a vertical antenna mounted at the top using shielded CAT5 routed down the bowl and ladder. There is a NEMA at the bottom where the CMM-3 is located with a #10 wire to the ground rod at the bottom of the NEMA. I am 'feeding' this tower APs during the spring/summer stormy months. Are there any better methods to grounding this setup? Thanks in advance, Bobby ---------------------------------------------------------------------------- ---- WISPA Wants You! Join today! http://signup.wispa.org/ ---------------------------------------------------------------------------- ---- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
