adjustment of current flow, and shutdown. The manuals shall
include the manufacturer's name, model number, service manual,
parts list, and brief description of all equipment and their basic
operating features. [Six] [_____] copies of maintenance manual
listing routine maintenance procedures, recommendation for
maintenance testing, possible breakdowns and repairs, and
troubleshooting guides. The manuals shall include single line
diagrams for the system as installed, instructions in making
tank-to-reference cell potential measurements, and describe the
frequency of monitoring. The instructions shall include
precautions to ensure safe conditions during repair of system.
Training
The proposed Training Course Curriculum (including topics and
dates of discussion) indicating that all of the items contained in
the operating and maintenance instructions, as well as
demonstrations of routine maintenance operations, including
testing procedures included in the maintenance instructions, are
to be covered.
1.3
GENERAL REQUIREMENTS
The Contractor shall provide and install all equipment wiring, and wiring
devices, necessary to produce a continuous flow of direct current from
electrodes in the electrolyte to the metal tank surfaces; and placing the
cathodic protection system in operable status.
a. The Contractor shall install complete [automatic] [manual] [______]
cathodic protection to prevent corrosion on the interior submerged
surface of the water tank. The Contractor's installation shall meet
the criteria and protection outlined in paragraph CRITERIA OF
PROTECTION for a 20 year life.
b. The purpose of the system is to adequately and efficiently protect
the surfaces of the metal against corrosion where the surfaces are in
contact with water; this is in addition to the protective coating on
the tank. The contract drawings indicate the location and size of the
tank. The design of this system is based on an impressed current
system.
c. The Contractor may modify the cathodic protection system after site
verification and analysis if the proposed modification will provide
equal or better overall system performance. This modification must be
fully described and submitted by the Contractor and approved by the
Contracting Officer. Modifications or additional anodes shall be at no
additional cost to the Government. Any modification shall incorporate
all requirements of this specification.
d. The intent of this specification is to use this impressed current
system as described with anodes as are found necessary in calculation
and submitted data to meet this specification. Anodes shall be
installed in sufficient number and of the required type, size and
spacing to obtain a uniform current distribution of 3.5 milliamperes
per 0.09 square meters 1 square foot to all submerged surfaces in the
tank when filled with water to the over-flow level. The anodes shall
be suspended from the roof steel with hangers or supporting cables that
are electrically isolated from both the metal roof and the water
electrolyte. The anodes shall be placed with the roof door midway
SECTION 13111A
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