Bid Package 08 North Well Field - Garney Construction

Colorado River Municipal Water District
Raw Water Supply Well Sites
Ward County North Well Field
7. PAIRED SHIELDED AND TRIAD SHIELDED CABLE: Ground paired
shielded and triad shielded cables at the instrument panel or starter end only and
insulate from ground elsewhere. The shield shall be continuous for the entire
run. The paired shielded and triad shielded cable shall not be laced with or
placed in the same conduit with power cables and digital control cables. Each
termination of paired shielded or triad shielded cable shall be coated with silicone
jelly after termination. The shield of pair shielded cable and triad shielded cable
shall only be broken when the conductors are terminated on terminal strips. Each
conductor and shield shall be landed on its own terminal. Sharing of shield shall
not be allowed.
D. GROUNDING
1. Conduits and other raceway shall contain an equipment grounding conductor
whether the raceway is metallic or not. Conduits, motors, cabinets, outlets, and
other equipment shall be properly grounded in accordance with National
Electrical Code requirements. Where ground wire is exposed to mechanical
damage, install wire in rigid aluminum conduit. Make connections to equipment
with solderless connections. All connections to ground rods shall be of the fused
type utilizing an exothermic welding process.
2. Ground metallic material, including but not limited to metallic raceway, metallic
boxes and metallic enclosures. Where metallic material is not connected by
raceway to a solid ground, connect the metallic material to the largest equipment
grounding conductor, which it houses. Clean the metal surface under the
grounding lug to bright metal. Grounding connections to motors shall be to the
grounding stud, which shall be threaded into the stationary frame; Use Burndy
KC Servit, or approved equal. The ground wire shall not be lugged to a
mounting bolt.
3. Ground wire shall be uninsulated tin plated copper sized as shown on the plans in
all cases where a single ground wire is indicated to be installed in a conduit with
no other conductors in the conduit, or where the ground wire is directly buried in
earth or concrete. In all other cases, insulate ground wire with green insulation as
specified for low voltage wire. Provide and size bonding conductors in
accordance with the National Electrical Code.
4. Provide a bare uninsulated ground wire to run the entire length of all cable trays.
The contractor shall bond to each section and to every enclosure served by
conductors routed through the cable tray system
E. TESTING
1. Testing: All testing required shall be per Specification Section 26 01 26,
“Testing of Electrical Systems”.
2. Perform tests and inspections and prepare test reports and submit to the
Owner/Engineer prior to final inspection. Test reports shall be submitted as
required by Specification Section 26 01 26, “Testing of Electrical Systems”. All
test reports shall be submitted in one binder under Specification Section 26 01
26, “Testing of Electrical Systems”.
3. Tests and Inspections:
a. After installing conductors and cables and before electrical circuitry has
been energized, test for compliance with requirements.
b. Perform each visual and mechanical inspection and electrical tests stated
in NETA Acceptance Testing Specification. Certify compliance with
test parameters.
May 18, 2012
Low Voltage Electrical Power Conductors & Cables
Revision 0 26 05 19-7