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SECTION 15180 - CATHODIC PROTECTION BY CALVANIC ANODES: continued `.� <br /> P1�T 2 - PRODUCTS <br /> 2.Ol jil�.RE IAI.S: <br /> A. Modea: <br /> 1. Nagneeium, High Potential: <br /> a. Chesical compoaition ns follor•e. <br /> Aluminum 0.003 percent asximum <br /> Manganeae 0.8 percent minimum <br /> Zinc 0.002 percent maximum <br /> Silicon 0.002 percent mazimum <br /> Copper 0.001 percent maximum <br /> Nickle 0.0005 percant maximum <br /> Iran 0.025 percent maxlmum <br /> liagnesium Remainder <br /> b. Dare Anode Welght: 32 pounda. <br /> c. Cast atiodes galvantzed ateel core rod. Raceas one end of the <br /> anode to provide accesa to the rod for connection of tha Lead <br /> w1re. Silver braze the lead wire to the rod, make the <br /> connection mechanically eacure before brazing. Insulata the <br /> connection to a 600-volt rating by filling the recesa with <br /> asphalt. Extend the Lnaulating material over the lead wire <br /> lnaulation by not Less than 1/2". Rapair all damaged lead wire <br /> inaulation. /` <br /> 2. Lead Wirea: UL 83. Type 7(HH41 (black) copper conductors, not leas � <br /> then Nu. 10 AWC atranded <br /> 3. Anode BackfJ.11: <br /> a. Chemical composition as followa: <br /> Hydratad gypsum 75 petoent <br /> Bentonite clay 20 parcent <br /> Sodium sulfate 5 parcent <br /> b. Backfill shall be granular with 100 peccent passing through a <br /> 100 meah acreen. Pack anode and backflll !n a cloth bag. <br /> Center the anode in the bag and flrmly pack the backfill around <br /> tha anode by usa of machanical vibration. Ttte total packaged <br /> weight of a �2-pound anode shall be 72 pounds nominal weight. <br /> B. Test Statione: Curb type, flush maunt, 4" I.D. x 18" long with cast <br /> iron tamperproaf lid lettered "CP TEST." Five-tPrninal and ona-terminal <br /> types required: Handley Model T14-SP and Handley Model T14-?., or <br /> approved equal. <br /> 1. Shunts: 0.01 ohm, 50 millivolt, 5 a�para, accuracy plus or minus <br /> one percent, wire type. <br /> C. Test Lead Wire: UL 83. Type Xf{FIW copper conductors, not Less than No. <br /> 10 AWG etranded, white or red aa indicated. <br /> �. Flange Insulation Kits: Kits shall incJ.ude full-faced gaskets, <br /> insulating sleeves and washers, and steel aashera. <br /> 1. Gaskets: ANSI 816.21. Neopcene-faced phenolic material Eor <br /> operation at 150 psi, 100°F. - <br /> 2. Insulating Sleeves: 1/32" thick phenolic tubing material £or <br /> opera[ion at 100°F. <br /> 15180-2 BOE15180.911 <br />