WPC 2QBR Z Courierw Roman#|dOed6X@`7@HP LaserJet 4HPLAS4.PRS 4d6X@;\*"P@lr5ddd,Oed6X@`7@s4ddd,鑡d `7r5ddd,d6Nhez7HrV&PƋ΋ߋ~XrAuڋF&&&+=&|I&&+=&|&&-&%ddddddddddddddddddddddddddddddddddddddddNEssEX`AT`````6=`:=`:AATT`BBs``uEssErkkAT`:"`soh`kss`t 4HPLAS4.PRS 4?f\  P6G;\*"P?P2$r 0CourierCourier Bold X` hp x (#%'0*,.8135@8:, P age,  s5  F ooter, B , E dit. Delete the "Project Name (ftr B)" text and replace  s5K it with the name of the project (bolded) . , until you arrive at the document text.(# D.The Guide Specifications are being reviewed and revised. Your technical comments on any guide spec would be greatly appreciated. Also, any specs that are written "from scratch" that would benefit others could be sent to either Dion Dishong or Lori Quayle, RS110.(# E.Be aware that a corrosion investigation study should normally precede the installation of a corrosion protection system. Anode material, size, weight, current output, location, and design life are variable depending upon other variable factors such as the type of soil, its corrosiveness and resistivity, its moisture content and drainage, the cable neutral to soil potential, and the proximity to other underground metallic items or to stray direct current flows in the vicinity.(# F.This specification was written to cover the addition of corrosion protection to an existing underground electrical distribution system. Usually, the best time to install corrosion protection is when the distribution system is being installed, and this specification can be revised to cover this situation.(#  s5M!  DRAWING DATA REQUIRED: Location and detail drawings as needed. The drawings should show exactly where the anodes with test stations are to be located.(#  s4#  REVISIONS OF THIS SECTION:  r5$  CSI format, editorial changes: 2/97 Metric: Technical Update: 2/97 POINT OF CONTACT: Dennis Grevel Phone: (303) 9876858&0*((  XM s4 #d `7#`(#8CATHODIC PROTECTION FOR URD CABLES Project Name (ftr B)` (#T[2/97] .13111   b-SECTION 13111 H "CATHODIC PROTECTION FOR URD CABLES PART 1: GENERAL 1.1SUMMARY A.Section Includes: [Furnishing] [and] [installing] a distributed sacrificial, magnesium-anode-type cathodic-protection system installed to protect a buried electrical distribution system of URD-type cables with bare tinned copper concentric neutral wires.(# B.Related Sections:(# ************************************************** DELETE EITHER 01009 OR 01010. EITHER SECTION 01300 OR 01410 MUST BE USED WHEN 01010 IS USED. ************************************************** Summary of Work`(#MSection 01010 Submittals`(#MSection 01300 Trenching, Backfilling, and Compacting`(#MSection 02229 Utility Line Marking`(#MSection 02897 1.2QUALITY ASSURANCE A.Labeling Requirements: Major lightning protection system components shall be Underwriters Laboratories, Inc. (UL) listed and labeled. UL listing and labeling will not be required if it van be shown that system components meet the requirements of another nationally recognized testing laboratory (NRTL).(# 1.3SUBMITTALS A.General: Submittals shall be according to [Section 01009 General Information and Requirements.] [Section 01300 - Submittals.] [Section 01365 Certificates of Conformance.](# B.Manufacturer's Literature: Submit three copies of the manufacturer's descriptive data for the following items to be used on this project:(# 1.` ` Magnesium anodes(#` 2.` ` Cable clamps and insulation(#` 3.` ` Test stations(#`  PART 2: PRODUCTS 2.1MATERIALS: A.General: Cathodic protection system components shall be constructed of the manufacturer's standard materials, as listed in published product information; types and sizes shall be as indicated or as required for the installation.(# !0*s's'Ԍ" B.Magnesium Anodes: Shall be of the high-potential type, and meet the requirements of REA Bulletin 43-5.(# 1.` ` Shall be high potential type with [ ]-lb weight.(#` 2.` ` Shall consist of an alloy of the following chemical composition:(#` ` ` Aluminum . . . . . . . . . . . . .0.010% Max. ` ` Manganese . . . . . . . . . . . . .0.50 to 1.30% ` ` Zinc. . . . . . . . . . . . . . . .0 ` ` Silicon . . . . . . . . . . . . . .0 ` ` Copper. . . . . . . . . . . . . . .0.02% Max. ` ` Nickel. . . . . . . . . . . . . . .0.001% Max. ` ` Iron. . . . . . . . . . . . . . . .0.03% Max. ` ` Other Impurities. . . . . . . . . .0.05% each or 0.3% Max. ` ` Magnesium . . . . . . . . . . . . .Remainder " 3.` ` Anodes shall be cast with a perforated galvanized steel core. The weight of the core shall not exceed 0.10 lb/lin ft.(#` 4.` ` One end of the anode shall be recessed so that one end of the strap is accessible for lead wire connection.(#` 5.` ` The anode shall be packaged in a permeable cloth bag containing a backfill mixture of the following composition:(#` ` ` Ground Hydrated Gypsum. . . . . . .75% ` ` Powdered Wyoming Bentonite. . . . .20% ` ` Anhydrous Sodium Sulphate . . . . .5% 6.` ` Anode material shall be listed in REA Bulletin 435.(#` C.Anode Backfill: Backfill shall have a grain size so that 100% is capable of passing through a 20 mesh screen and 50% will be retained by a 100 mesh screen. The mixture shall be firmly packed around the magnesium within the cloth bag. The packaged anode shall weigh no less than 2-1/2 times the weight of the anode alone.(# D.Cable Clamps: Connections of wire to cable shall be made with cable clamps as shown on the drawings. Clamp material shall be listed in REA Bulletin 43-5.(# E.Test Stations: Shall be as shown on the drawings.(#  PART 3: EXECUTION 3.1INSTALLATION A.General: This system shall be installed on main and branch runs of the buried primary electrical power distribution cables concentric neutral wires. Anode locations noted on the drawings, shall include anode test stations as shown on the drawings and listed in the schedule.(# B.Packaged Magnesium Anodes: Shall be installed within 25 ft of the locations listed on the schedule. Test stations should be located at existing permanent landmarks (e.g. fence lines, signs) when possible. Each anode shall be installed in a vertically augured hole to a depth of 7 ft or 12 ft as indicated by the schedule, and 3 ft to 5 ft from the cable. The hole diameter shall be such as to accommodate the size of the anode. After the hole is augured, the packaged anode shall be lowered into the hole and soil shall be firmly tamped around the package so that it is in intimate contact with the package. Soak the anode with a minimum of 10 gal of fresh water prior to backfilling with native soil only.(# C.Lead Wires from Anodes: Shall be run underground and shall be connected to the cables being protected as shown on the drawings. The}&0*s's' anode lead wires shall be 10 ft in length and shall consist of No. 12 copper wire with Type UF or high molecular weight polyethylene insulation. The lead wire shall be connected to the core with silver solder. The connection shall be mechanically secure before soldering and shall have at least 1-1/2 turns of wire at the connection. The entire connection shall be insulated by filling the anode recess with an electrical potting compound. The lead wires shall be connected to the cables by way of a test station where shown on the drawings. The burial depth of the anode lead wire shall be a minimum of 24 inches. The electrical connection of the lead wire to the cable shall be made with REA approved cable clamps.(# D.Connections to the Cable: Shall be made with approved cable clamps. Before the connection is made, concentric neutral wires shall be cleaned to bare metal by means of scraping, brushing with a plastic brush, or other approved methods. The method of making these connections is shown on the drawing.(# E.Safety: The cable shall not be energized at the time of the installation of anodes. Excavations in the vicinity of the cable shall be made so as to insure that the cables and other utilities are not injured. Problems on the underground cables after they are re-energized shall be corrected by the Contractor with no additional cost to the Government.(# 3.2FIELD QUALITY CONTROL A.Requirements: After the installation is completed, the cathodic protection system shall be tested by the Contractor to determine that the underground cables are receiving adequate protection in accordance with the applicable criteria as given in Section 6 of the Recommended Practices, RP-01-69. Testing shall be performed under the direct supervision of a corrosion specialist certified by NACE. The Contractor shall furnish necessary equipment, labor, and materials to conduct the testing. Testing shall be conducted in the presence of the Contracting Officer who shall be given 48 hours notice before any test is to be conducted.(#  PART 4: MEASUREMENT AND PAYMENT ***************************************************** WHEN A "LUMP SUM" CONTRACT IS USED, DELETE THE TITLE PART 4: MEASUREMENT AND PAYMENT, AND BOTH ARTICLES FROM THIS SECTION. MEASUREMENT AND PAYMENT WILL BE ADDRESSED IN PART 4 OF SECTION 01010 SUMMARY OF WORK. ***************************************************** 4.1METHOD OF MEASUREMENT A.Units: Installation of anodes will be measured and paid for by the number of anodes and anode test stations installed and shall include excavation and backfill.(#  0*s's'Ԍp 4.2BASIS OF PAYMENT ***************************************************** WHEN NOT A "LUMP SUM" CONTRACT AND PAYMENT IS TO BE MADE UNDER THIS SECTION, SELECT APPLICABLE PAY ITEMS. DO NOT CHANGE PAY ITEM NUMBER. ***************************************************** A.Payment: Prices and payment will be full compensation for the work described in this section. Payment will be made under:(# ` ` Pay Item !&+049``>@@C  HLPay Unit 16641(01) Anodes - 7 Ft . . . . . . . . . . . . . . . . . Each(# 16641(02) Anodes - 12 Ft. . . . . . . . . . . . . . . . . Each(# 16641(10) Anode Test Stations - 7 Ft. . . . . . . . . . . Each(# 16641(11) Anode Test Stations - 12 Ft . . . . . . . . . . Each(# p 0,END OF SECTION