Re: Protection From Physical Damage, but??
Joe, please send me a private message to let me know where this is located in Indianapolis. I would like to see it.
It is obvious that the gas was installed after our cash registers (
meters) were installed. We require the same as 110.26 except we require 4' in front of the metering equipment regardless of the voltage. We also require 3' of clearance to the gas meter for working room since the meter is not a spark producing device. Sorry Joe, the NFPA 54 Staff Liaison just has an opinion and so does EEI. Without a formal interpretation, neither is worth a d - - -.
At the time of this installation, incident energy was not an issue. We do replace meters and do a limited amount of testing while hot and under load (
we use jumpers to keep power on to the service and use the appropriate PPE). In this particular case, the meter person would cover the post and barrier with rubber blankets before working hot. After he is in his PPE and the grounded (
maybe) surfaces are covered, he can do his work.
I am also wondering if a conduit is not behind the R/H post since we do not allow unmetered conductors inside a building. Assuming that is the case, that is not a CT cabinet but a junction box that is feeding 2-200 ampere services.
If you are old enough to have used very accurate analog (
I know, what's that?) equipment, you will remember the mirror that was behind the needle. The purpose of the mirror was to line up the needle with its reflection to make sure parallax was not a problem.
This installation is basically under the purview of the electric utility and the NESC since the service point is in the junction cabinet and IPL owns and controls the meter fittings.
