User's Manual

Sample Sweeps Output
TDC-0971-011 CCU 100 and Repeater 100 Installation Guide 99
Proprietary and Confidential
When conduit is visible and there is no method to determine the contents (for
example, utility shafts in a building), label the conduit as power (with voltage),
Telco service, or ground.
• Coax Grounding Kit. The coax ground kits must be from the same manufacturer as
the coax. Ground kits must be solid strap type with No. 6 AWG wire and 2-hole
compression crimped lugs (installed using the proper UL tool and circumferential
hexagon die). Ground kits ordered through Itron North Supply do not require
approval. Coax ground kits not ordered through Itron North Supply require approval
from the Itron construction team.
Note Do not use a braid or hose clamp type nor a solid copper strap type with single
hole lugs.
• Lugs. All lugs must be 2-hole, long barrel, tinned solid copper unless otherwise
specified in this document, installed using the proper UL tool and circumferential
hexagon die. Lugs must be Thomas and Betts series 548##BE, Burndy, ERICO or
equivalent. Bolt hole diameter and spacing on all ground lugs must match the hole
diameter and spacing of the ground bar. Angled lugs may be used if construction
conditions dictate.
Note Tag all ground lugs that are attached to any easily accessible ground point (for
example, exposed ground bars, water pipes, or building steel.). The tags must read,
"DO NOT DISCONNECT" and must be placed at each end where the grounding
conductor terminates. Metal tags are acceptable.
• Anti-Oxidation Compound. Anti-oxidation compound must be Thomas and Betts
KOPR-SHIELD (TM of Jet Lube, Inc.) or Burndy Penetrox – E. This product is
available in small containers with a brush attached to the lid for easy application.
Apply anti-oxidation compound between the lug and ground bar only. Do not cover
the lug.
• Lightning Arrester for UHF Coax. Polyphaser IS-MR50 series.
Existing Building or Rooftop Sites
The following topic outlines how to ground a CCU on an existing building or rooftop site.
Electrically continuous paths to earth ground are available when grounding on or near
existing buildings.
To ground existing building or rooftop sites
1. Inspect all proposed existing building/rooftop sites to determine which of the
following electrically continuous paths to earth ground are available:
• Attachment to the building water main entrance.
• Attachment to the building structural steel that is physically continuous down to
earth ground, as verified by a local Engineering firm.
• Connection to an existing qualified grounding system.