| Answer: With
the 2008 National Electrical Code
update it is now required that an
"Intersystem Bonding
Termination" (See
pictures below) be installed
whenever the grounding electrode
system is updated or installed during
new construction. For existing
houses this usually does not occur
until the electrical service is
upgraded.
However
an "Intersystem Bonding
Termination" can be installed on
existing grounding electrode
conductors and are quite reasonable (A
few dollars) to purchase. They
can be found at an electrical supply
company and are made to attach to
existing wiring.
Usually
the "Intersystem Bonding
Termination" would get
attached to the grounding electrode
conductor that is attached to a ground rod near the outside electric
meter and the other utilities such as
telephone and cable & satellite
TV. An additional
"Intersystem Bonding
Termination" could also be installed indoors
near the electrical panel or near the
water pipe ground connection if
needed.
From
the "Intersystem Bonding
Termination" you would run
a solid #10 copper wire to the cable
TV terminal block or the satellite
dish. A #12 copper wire is
sufficient for the telephone
demarcation block.
Having
everything grounded and bonded
properly will help prevent damage or a
fire from lightning.
Click
here for more details on grounding and
ground rods.
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