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Posted by Terry on February 22, 2007, 9:48 pm
wrote:
> Terry wrote:
> > When I first got a satellite, Direct TV came out and drove a small
> > ground rod and ran a bare wire from the base of the dish to the ground
> > rod.
>
> > I no longer use satellite but I am thinking about switching back
> > again.
>
> > I plan to have the new installer leave the base of the satellite
> > grounded to the ground rod, but also insist that he take another bare
> > wire from the clamp on the ground rod into the house and bond it to a
> > copper water pipe.
>
> > Will this meet code? If I can't get the satellite people to ground it
> > properly then I plan to stay on cable. I don't plan to spend any
> > money out of my pocket to ground a satellite system when I can just
> > stay on cable and not worry about it.
>
> > The cable company installed a splitter and came off the splitter to
> > the same cold water pipe I plan to have the satellite people to use.
>
> Unless the water pipe you are talking about is within five pipe feet of
> were the piping enters the building AND, the supply piping in the earth
> outside your home is also metallic And, the underground portion of the
> supply piping is twenty or more feet in length, it is not suitable for
> use as a grounding electrode. The US National Electric Code (NEC);
> which may or may not be enforced as law in your community; requires that
> the Grounding Electrode Conductor for your satellite dish must terminate
> at the Grounding Electrode system of the building. If the entry point
> of the satellite feed line is too far from the grounding electrode
> system then a full sized driven rod of at least eight feet in length
> should be driven below the dish and within a few feet of the point of
> entry. That driven rod is then bonded to the Grounding Electrode System
> so as to become part of that system electrically. The minimum size of
> the bonding conductor is number six American Wire Gage (AWG).
> --
> Tom Horne
>
> "This alternating current stuff is just a fad. It is much too dangerous
> for general use." Thomas Alva Edison
>
> ARTICLE 810 Radio and Television Equipment
> I. General
> 810.1 Scope.
> This article covers antenna systems for radio and television receiving
> equipment, amateur radio transmitting and receiving equipment, and
> certain features of transmitter safety. This article covers antennas
> such as multi-element, vertical rod, and dish, and also covers the
> wiring and cabling that connects them to equipment. This article does
> not cover equipment and antennas used for coupling carrier current to
> power line conductors.
>
> II. Receiving Equipment - Antenna Systems
>
> 810.15 Grounding.
> Masts and metal structures supporting antennas shall be grounded in
> accordance with 810.21.
>
> 810.21 Grounding Conductors - Receiving Stations.
> Grounding conductors shall comply with 810.21(A) through (J).
>
> (F) Electrode. The grounding conductor shall be connected as follows:
> (1) To the nearest accessible location on the following:
> a. The building or structure grounding electrode system as covered in
> 250.50
> b. The grounded interior metal water piping systems, within 1.52 m (5
> ft) from its point of entrance to the building, as covered in 250.52
> See the commentary following 250.52(A)(1).
> c. The power service accessible means external to the building, as
> covered in 250.94
> d. The metallic power service raceway
> e. The service equipment enclosure, or
> f. The grounding electrode conductor or the grounding electrode
> conductor metal enclosures;
>
> (J) Bonding of Electrodes. A bonding jumper not smaller than 6 AWG
> copper or equivalent shall be connected between the radio and television
> equipment grounding electrode and the power grounding electrode system
> at the building or structure served where separate electrodes are used
I kind of get the feeling that about 100% of the dishes installed do
not meet these requirements.
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