Document a1JJkKD06vrvKmzdVwevRxQ7N

1 DEPARTMENT OF*DEFENSE iGOTlATED CONTRACT KAHC BUREAU Of SHIPS ISSUING OFTICE . > WASHINGTON 25, D. C. \ .1 <V \>1 91 ^tractor__________________________________________ MAMC / WESTINGHOUSE ELECTRIC CORPO R.ATION AODKCSI _ _, . 1625 X Street, N.W, Washington 6, D.C. co*rr*ACT roe j _ qya60 Ships service power; Lot II - Baclc-up Stook for CVA60. AMOOKT * 1,824,423.00 APP*0P*1AT10 A*0 OTMC* AOMIMISTMT1VI OATA ' APPROPRIATION: LOT I - 17X1611.53, Shipbuilding and Conversion, Navy; Expenditure Account 52103; Object Classification 099; Bureau Control Number 10000. Abstraot vouohera to receiving activity. LOT II - 17X1611.53 > Shipbuilding and Conversion, Navy; Expenditure Account 52415; Object Classification 089; Bureau Control Number 70000, Abstract vouchers to receiving activity. PAYMENT: The Contractor shall submit invoioes in quadruplicate to the Naval Inspector. Public Vouchers will be prepared and payment will be made by the'Navy Regional Accounts Office,'Washington, D.C. INSPECTION: At Contractor's Plant, Essington, Pennsylvania, by the Inspector of'Machinery, U.S.N., Essington, Pennsylvania.*1 * GENERAL PROVISIONS: The General provisions of this contraot con sist of the General Provisions U.S. Standard Form 32, November 1949 edition, and the Additional General Provisions, Bureau of Ships 3-1-52, attached hereto, as modified in the Sohedule. r ,'\ ' j. / / ccnalerr" REQUISITION NO: P.R. 5^-284 rVRTJES ntf hr S-'PS This negotiated contract U entered into porsoant to the provisions of taction 2 (c) ( 1 ) of tha Armad Sanrica* Procuramant Act of 1047 (Public Law 413, 80th Congress), tod any required determination and findingi have baan made. THIS CONTRACT is antarad into as of 3 Decemberf 19_52 ^ ^ between tha United States of America, hereinafter called tba Government, represented by die Contracting Officer executing this contract, --< WESTINGEOUSE ELECTRIC CORPORATION Uusi or coamcroal (i) a corporation organised and earisting under tba lews of tba Stata of. Pennsylvania (ii) a partnership consisting of_ (iii) sn individual trading aa__ 'MnVTFnn IPglUlfl! hereinafter called tba Contractor. Tba parties hereto agree that tba Contractor shall furniah and deliver all the supplies and perform all tha services sat forth in the attached Schadtfla, for the consideration stated therein. DD . jSSI0 351 (8USHIPS PREPRINT) _ CONTRACT NObS - > SCHEDULE- PAGE NO. NO. Of PAGES . 4 y c ?. 1 c w s : - * - '" ?- x*.: To. Hsoeiving.'Offic,e%;->^'evife'Yotslc`.Naval .SHipJ'.'ardj '.'Brooklyn .1, now York: *! .* , Items 1 and 2 and sixteen (16) - of* Item 4-, at the rate of two (2) -each^ofWXtems. 1 and,2-and'four (4) of. item'-4- per month, besirrciit^^L'ompletiorrv '' * ' Item 3, oh 1/July,--:1954. ' - . r^-Vgj . ^ _ ....-, - . - Item 5 and three-^C^nbf Item''^>v.to^lfct^H*Bureauc-.o,f'svShl^.s'.;;"- Department of thesj-Navy,- V/ashington/25.i^C;l-Cmarked; .-"Attention Code 560G"`, on 1 35 J*uly1954. . :;/. -V" - ' ..... To Receiving Officer, .Ships Parts. Control-Center, Naval Supply Depot, Mechanicsbuigy Pennsylvania: ' ' - j. \ '' vt *' t. , . Forty-one (41)'of. Item 4, on l! Julyiii^M"'. . ' Items 9 and 10, ion i^'Auguat 19540" .- . ' - . - To Receiving Of fleer, V-Naval Supply Depot.,.^Me'c.hanic sburg, Pennsyl- vnniar.-. r- ' ' ` -Tih'V ` Items 6 thru 8- and&Itbm 3/2, on 15 -July':-i9^4-.. *Item 11, on 1 August &L954. ' xZii'L -. UNIT UNIT - SUPPLIES AND SERVICES'. -QNTY QNTY .PRICE-.. r h --.EXTENSION LOT I :' . 1 .5. .Generator set, steam^ur- 1 "T;bine, driven, 1500 kwV fafaxt,*. t rated. Package Type) '.45Q ; ' volts a-c complete with.-.' .- . accessories i;.` -8 No . $187, pOO...pd^|i;,if96 > 000.00 2 Switchboard mounted con-.- trol equipment for Item.t: ' I-.- . 8. s; ` `Set " '' ' ' 2,.465-; 0D4f:-< 19, 720.00 3 * -Onboard mechanical and|--..h-;i . . electrical repair parts/,;' -"and tools for Items 1 >&-%''V- - : ana 2 .1 f - Set DD iJimS4*t*W~* .uS* fH (BUSHIPS PREPRtNTl * ` a. ' ' . '* A J --A 4 - f*S V* - /V CONTRACT NObl-6l436 SCHEDULE ?A4c *o. NO. Of FMM 2 ITEM SUPPLIES AND SERVICES LOT I(CONT'D) UNIT' UNIT QNTY QNTY PRICE EXTENSION ,' 4 ,5 Instruction book for Itsms 1 and 2 Finished drawings for Items 1 and 2 - 60 No. (Price of Items 4, and 5 in cluded in price of. Items 1 and 2) . 1 Set TOTAL LOT I............. ... .$1,540,520.00 LOT II . 6 Generator set, steam turbine driven,1500 kw (Max. rated, Package \* Type)450 volts a-c com plete with accessories 1 No. $168,000.00 $ 168,000.00 7 Switchboard mounted con trol equipment for Item 6 1 Set 2,465.00 2,465.00- 8 Onboard meohanloal and eleotrioal repair parts and ..tools for Items 6 and 7 ,1 Set 11,438.00 11,438.00 9 SPCC, NSD, Mech, con trolled stock electri cal repair parts. 1 Set 18,225.00 18,22500 10 SPCC, NDS, Mech. con trolled mechanical stock repair parts 1 Set 17,725.00. 17,725.00 11 Bureau controlled stock repair parts for tur bine and gear 1 Set 66,050.00; 66,050.00 12 Instruction Book for Items 1 6 and 7 2 No. (Price of Item 12 inoluded in price.of Items 6 and 7) TOTAL LOT II............. .. 4 283,903.00 TOTAL LOTS I AND II... $1,824,423.00 DD . JU?0 351-1 <U3WW PREPRMTD contract NObs -61^36 SCHEDULE rAc NO. NO. Of PAGES .3 4 SPECIFICATIONS AND SPECIAL PROVISIONS: A' All Items -shall be in accordance with Bureau of Ships Contract#-Speci fication SHIPS G-823, dated 12 August 1952 and Addemdum-2, -dl^ed * 26 September 1952 with the following special requirements arid"" ex-.- ceptions: ' " - * v * Special Requirements: _ Item 9 - The stock electrioal repair parts shall oonsistof the on`S6at,d-eleotrical repair parts as provided under-Item 3 plus the items noted in paragraph 3* 8* 2.3 of referenced Bureau of- Ships Con tract Specification SHIPS 0-823. -' Item 10 - The stock mechanical (turbine and gear) repair parts for Item 10 shall consist of the onboard mechanical repair parts as provided under Item 3. Exceptions: ' A new paragraph 3.1.9 is added as follows: "3.1.9 - The requirements of Specification MIL-R-2729 regarding division of reactive load and circulating currents for generators operating in parallel shall not apply. In lieu thereof, the follow ing shall apply: - a. The maximum difference in reactive KVA supplied by one generator from that supplied by another generator,, based on the continuous KVA rating of one machine, shall not exceed 15 percent at loads up> to 90 percent- full load, and 6 percent from 0 percentto full load. b. The circulating current between-generators operating at no load shall not exoeed`7.5 percent of bhe continuous current rating of one generator at any generator frequency from plus 5'per cent to minus 5 percent of rated frequency." ' 1 A new paragraph 3.2.10.3 is added as follows: "3.2.10.3 - The requirement that steam connections together with steam chests, necessary valves, governors, and safety devices, piping, etc. shall be so arranged that they need not be disturbed in lifting of the turbine oasings is deleted." . A new paragraph 3*2.10.4-is added as follows: .. "3.2.10.4 - The requirement that Exhaust connections shall-be ; -. circular and shall be located to permit installation of expansion Joints, valve fittings, deck stuffing boxes, etc. is deleted." ` DD 1 35M '*P*IKT) CONTRACT NObS-61436 SCHEDULE PACE MO. MO. OF PAGES 44 Paragraph 32.14.1 is modified to read as follows: "3.2.14.1 - Material shall be in accordance with Class A or Class B of Specification MIL-S-860." A new paragraph 3.2.18.3 is;addd<L-.aS'follows: X *- . ... "3.'2.18.3 - Helical reduc^YSff gears shall he of the single or double reduction type, with the?axLis'of/the .pinions'and gear on the same horizontal-plane. The regi/irement that 'the/bearing-'caps shall be removable' without lifting?$Ke gear' case- cover is defied, " v * Add ndV?'sentence to end--of-'paragraph 3.3.2 ss folIotratV "The condenser shell shall be an integral part of the unit sub base .,! REPAIR PARTS LIST FOR ITEMS 3 AND 8 THRU 11: Within thirty (30) days after the date of the-contract or. thirty (30) days after date of approval of plans involving repair parts, whichever is later, the Contractor shall submit ..a reproducible itemized list of repair ' parts, with prices, manufacturers' names and part numbers, such list being 8 x 10-1/2 inches iri size.' The prices shall equal the total price specified for a complete set of repair parts listed in the contract. Upon receiptsof such list, the oohtraot shall be amended to--incorporate the list or a change order shall be1 issued to incorporate such items as the Bureau of Ships may select. EXAMINATION OF RECORDS, DISPUTES, PRICE ESCALATION arid PROGRESS PAYMENTS AND LIENS Clauses-, -attached hereto, form a part of this Schedule. For purposes of escalation it is agreed that the nearest commercial equivalent of the equipment is Established at $9^>250'per turbine generator in accordance with Westinghouse Eleotrio Corporation Price List for 1500 KW, Geared Turbine Generator Units List H85, page 5, dated 24 March 1952. CMP CLASSIFICATION: Class "B" ..Product. ' CERTIFICATION: DO-A-3; certified under CMP Regulation #3. DD , ?& 35M CRUJHIPS PREPRINT) Serial No. i SHIPS-G-823 ADPENBUM-.-21 March 1953 y UPersedin g Addendum - 2 28 September 1952 BUREAU OF SHIFS CONTI ICT SPECIFICATION GENERATOR SET, STEAM TURBINE * ' J/v 7* / X7r^< 0 sfu/j-1 This addendum forms a part of Bureau of Ships Contract Specifica tion SHIPS-G-823, dated 12 August 1952. Page 3, paragraph 3.1.2, line 3: Delete **1100 p. s, i. g. " and substitute "1050 p. s. i. g. " . . ' ' . Page 4: Add as paragraph 3.1.8: , "3.1.8 Steam consumption shall be measured on one unit only. Steam con sumption shall not be measured during the 50-hour continuous full-load run." Page 4, paragraph 3.2.1.2 (b): Delete. ' ' Page 4: Add as paragraph 3.2.1.2.1: . "3.2.1. 2.1 The turbine shall not be required to deliver rate^ power at less tha: 1050 p. s. i. g. steam pressure at the throttle. " Page 5, paragraph 3.2.1.4.3: Add "The turbine steam rate at 60-percent of rated load shall also be stated in bid proposals. This steam rate shall be based upon the vacuum obtainable at 00 percent load with 75 *F. condenser circulating water injection temperature; this vacuum shall be stated in bid proposals. " Page 10, paragraph 3.2. 20, line 2: After "exhaust" Insert '*valve seated by Page 11, paragraph 3.4.1, line 2: Delete "675" and substitute "395". Sferflil No, 3 1 , SB3ESL-GP823: 12LAugna4 1962*. BUREAU OF SHEPE CONTRACT SPECIFICATION GENERATOR SET, STEAM 'TURBINE. This, specification: is for use. only,witBrB&reaaiof Ships. Contract N0t)S - 6 1^36 (Reference No. 50O-284)i . 1, SCOPE. ' 1*1: TMs..specification covers steam .turbine.^generator.-setsTor Navai ship^-- board use,- 2*. APPLICABLE SPECIFICATIONS;. STANDARDS;. DRAWINGS,. AND' - PUBLICATIONS. .. . 2* 1 The- foBowing.:speeifications;. standards^, aadbdarasstoga^. of theissue-in effe cton-date;e'invit&fcic^ form a^part .ctf-.li^speccMlcakiKic - SPECIFICATIONS.: '- , ' MILITARY, MEL-B-2S3 - --BozeSy. Repair Parts*. .' JAN-P-658:1--Packhijing.andPacking'/of.E&efcrircai .-Eq<d?3nxeot. ' and. Spare'Parfes^(EIeetr(w^cr. Electrical, /aadu ' Electro - Mechanical),. _ . JAN-P-690' - Puiler,-. Brushing?. Bearing?. aadcGearp. Installing;: ' ahd-'Remviiig,i. ' MIL-S-8&"--St&el,. CorrosionsResisting;: ISdrs. aadoFhrgings- ' (Except for.Reforgans^,. : MEL.-S-864-- Steel,. COrTosion-Resisting: Plates,;. SSeefcs,, Strips? and Structural 'Shapes,. ' MIL-S-860 - Steel, Forging-for--,I^b&e.'Rbtors^(5eai*Treatfi<IJ;, MEL-S-861: --Steel, Corrosi6a-Resjsttng.;.(for-TurttoeoPsrts^,. MEL-S-870 - Steel Castings,- Molybdenum Alloy* MIL-Sr871 - Steely.Molybdenum-ABoyvPiateSf. Efcilsrr. MEL-EP963-"--Drawings, Production (for;EIectrrcal'.aadoMeehaaicai: Equipment for Navai Shipboard,.Us MIL-B-1222.' - -Bolt-Studs, Nuts' and Bars,5,Round?; Sfiseii(farr Service at Temperature-Uptto-'bSS8FT);. . SHCPS-G-823:.' ' MILITARY'(cont'd.) ' MIL-M-1940 - Motors, Alternating-Current (Shipboard Use). MIL-G-3087 - Generator Sets, Steam-Turbine-Driv'en, ' ` ' Diree't';and '.Alternating Current'(Naval Shipboard Use). MIL-B-15071 - Books, Instruction; Preparation, Contents and ' MIL-S-15083 - Steel; Castings. " _ MIL-R-15137 - Repair Parts for Electrical and Mechanical 'y s ' Equipment (Naval..Shipboard-Use),''-- ' MIL-C-15345 - Castings, Non-Ferrous, Centrifugal. ' ' -MIL-C-15430 - Condensers, Surface (Naval Shipboard Use). MIL-S-15464 - Steel, Alloy, Chromium-Molybdenum; ^Castings. MIL-E-15465 - Ejector, Air; Assemblies. _ -15730 Coolers, Fluid (Lubricating Oil and' Fresh Water, Naval Shipboard Use). MIL-S-16113 - Steel, Plate, Structural, Black (Uncoated) and ' Zinc-Coated (Galvanized), p MIL-P-16298 - Preservation, Packaging, Packing]-^rid'Marking of Electric Machines Having Rotating Parts ' ~i ' (Includes Associated Repair-Part's). ; - ' -- MIL-P-17286 --Preservation, Packaging, Packing;-ah'd Marking-' ' . of Propulsion and Auxiliary Steam Turbines and Gears (Includes Associated Repair Parts). ' ' MIL-P-20167 - Steel, Plate, Marine Boiler. _ NAVY DEPARTMENT - ; - General Specifications for Inspection of Material. ' ' BUREAU OF SHIPS General Specifications for Machinery: > ' Section S39-2 - Thermal Insulation for Machinery and Piping. /. Section S50-1 - Horizontal Turbines, General Auxiliaries, Section S62-5 - Electric Power Distribution Protective Devices. i. '- STANDARDS ' '- MILITARY , \ : : v. MIL-STDrlO - Surface, Roughness, Wavinessy and Lay. MIL-STD-129 - Marking of Shipments.' ' .t 2 SH3PS-G-823 DRAWINGS ' BUREAU OF SHIPS B-214 - Root Coftnectiotis for Attaching- Piping 5000-S2803-F-841339 - Typical Identification Plates for' Machinery. (Copies of specifications, standards, and drawings required toy contractors in connection with specific procurement functions should fee obtained from the procuring agency or as directed by the contracting officer.) ' 3. REQUIREMENTS 3.1'. Complete turbine generator sets, - ` " 3.1. i .Turbijie generators. - The turbine generator sets shall be in accordance wi'tspeTiiicaUon ivE-L-G-3087, except as otherwise specified hereinafter. ` ................. '' 3.1.2 The turbine generator sets shall lave the following classification: Type required Steam pressure (at throttle)'----*---- Steam temperature (at throttle) ---------- Exhaust pressure Parallel operation requirements----------- - Rating: ~ KW--------------------- -- - Voltage Class of insulation -- Degree of enclosure -- Type of voltage regulator control --~ Regulators per switchboard- ------ Repair parts-------------------------------- Type H (a. c,). -=^ae p. s, i. g. toso 940* F. TT. ; 2T; 5 inches Hg, ' Parallel operation \ ' required. . 1500 kw. (max. rating). 450 volts au c. . Class B or class HJ. . Totally enclosed, water cooled. Rotary amplifier. Or>e main, one standby. As. specified herein. 3,1.3 Each turbine generator set shall be the package type comprised of the turbine, generator, reduction gear, sub-base (as needed), condenser, and oilcoolers mounted as an integral unit. Integral land lubricating oil pumps for starting shall be included in the package. Components in the package shall be arranged to occupy a minimum of space and to redoes weight to the lowest, practicable figure consistent with other specification requirements. SHIPS-G-823 3.1. 4 The overall dimensions and weight of the complete turbine generator set including attached accessories shall not exceed the following: Length - 16 feet 3 inches above grating level (not including generator . ' rotor removal) . ;' . Width - 6 feet 6 inches .'Total weight - 41, 000.pounds * 3.1. 5 Each generator set. shall be-capable of withstanding without damage to the machine, the selective tripping test specified in Section 62-5 of General Specifications for Machinery. '' 3.1. 6 The combined unit shall be designed to withstand class HI shock in accordance with the values shown on figure 1. 3.1.7--The- combined unit .-shall be designed for satisfactory operation with - . the vessel rolling up to 30 degrees from the vertical to either side and with the - vessel pitching 10 degrees from the normal horizontal plane; n ` 3. 2 Turbines and gears. - The turbines and gears shall be in accordance with Section S50-Tof General Specifications for Machinery with the following modifica tions and exceptions;: - - `' . 3.2."li General: design and requirements. - - 3. 2.1.1 - Exhaust conditions. - The turbines will not -be required to exhaust to atmosphere. . .' 3.2.1.'2 Rated power requirements. - The turbines-shall be capable of delivering rated power at the -corresponding speed of the generator under the fallowing emergency conditions: - . .. (a) Steam pressure 10 percent greater than normal, .other . . conditions as specified in 3-. 1.2. - - . -(b)- Stwanr'pracsujfr 30 porocnfr Iojj Hun iiui - , diliuuw inui'iirnL as*' 6^0 /o ^ ^ . 3.2.1.3 Overload power requirements. - .The- generator unit will not be required to carry .kw. overload. . .t ' 3.2.1.4 Steam consumption and economy..-? : 3. 2.1. 4.1 The contractor shall furnish estimated condition lines for 100 percent, 75 percent, 60 percent, and 25 percent load-. The temperature and pressure for each stage shall be clearly indicated. t SHIPS-G-823 3. 2.1. 4.2 Turbines shall be designed for .maximum ecor1brn.3r.at 60 percent of rated power. ;, 3. 2.1. 4.3 Steam rate shall ndt,exceed 9,63 pounds/kw./hr. at rated load and design s'team and exhaust conditions.. <*Hrt Ct$ r-+Z- / JydZZ 'Z&+* tr^s, , m 3. 2.2 Classification; - Turbines shall be of the multi-stage impulse type. ^z> " ~ . 3. 2. 3 Drawings and instruction books; - Drawings and instruction books shall be as specified In 3.6 and 5". 7. /' ' ' ' S. 2. 4 -Preservative coatings. -- No painting shall be permitted on'surfaces contacting bill ": ; : " 3.2. 5 Designation ancl marking.Nameplates- shall be in- accordance' with ' Drawing 5000-S2803-F-84i339. -; ' '' 3'. 2. 6' Heat' insulation and lagging. - Insulation and lagging shaIl;not be pro vided by the manufacturer. The-manufacturer shall furnish a drawing including- a bill of material showing application of plastic type lagging in accordance with Section S38.-2 of General Specifications for Machinery. Use of metal lagging is prohibited.' Means for holding insulation shall be attached to the turbine casing by the.manufacturer prior to shipment,' Insulation and lagging will be accomplished after installation of the turbine. . 3.2.7; Lubrication and'cooling. - ' ' ' ;/ '-Si 2. 7.1 Oil cooling.-1 Internal cooling coils are prohibited. An external type oil cooler approved by*the Bureau of SHips in accordance with Specifica- . tion.MIL-C-15730 shall be'furnished. ' ' ''' ' S. 2-. 7.-2 Low pressure alarm. - A low oil pressure alarm contact maker shall be furnished. ' ; .. 3.2. 7.3 Hand pump. - A hand oil pump for starting shall be furnished. 3.2.8 Piping and valves. - Root connections shall be in accordance with Drawing B-2'i4; - 5 SHIPS-G-823 3.2. 9 Casings and steam chests. - 3. 2, 9,1 Material. - 3. 2. 9.1.1 Casings and steam chests shall be of cast carbon steel in.accordance with class B of Specification MIL-S-15083, or carbon steel boiler plate in accordance with Specification MIL-P-20167 for temperatures'up to 650 F., except that carbon steel may be used up to 750 F., with short time swings up to 775 F., provided the design compensates for the reduced allowable strength of the material; carbon-molybdenum cast steel in accordance with Specifica tion MIL-S-870, or boiler plate, molybdenum alloy in accordance with Specifica tion MIL-S-871 for temperatures up to 850 F., except that carbon-molybdenum steel may be used for temperatures up to 875 F., provided the design com pensates for the reduced allowable strength of the material. Chrome-molybdenum cast steel in accordance with Specification MIL-S-15464, preferably with 1/4 per cent vanadium added, for temperatures up to 975 F. When carbon steel is used for temperatures of 650 F. to 750 F., or carbon-molybdenum steel is used for temperatures of 850,F. to 875 F., the allowable stress is the stress rupture, or the stress for 0,1 percent plastic creep (both in 40, 000 hours), whichever is less, modified_by an appropriate safety factor. , . 3.2.9.1.2 Casings and steam chests may be1 built up by metallic arc welding of cast,, rolled, or forged steel of suitable characteristics, t 3. 2. 9.2 Drainage. - .Ample provision shall be made for the drainage of all parts of turbine casings. Ample drain pockets shall be provided. Impulse stages shall be constructed so that water accumulation in diaphragm and casing recesses is prevented. If necessary, axial grooves may be cut along the lower wall of the steam path to permit flow from stage to stage toward the exhaust end. In particular, it shall, not be possible for water to accumulate at any point to a sufficient depth to be touched by blades under any-ordinary condition. Care shall be taken to avoid pockets formed by diaphragms having partial admission and having no steam path in the lower half to .permit drainage. In such cases, drain holes may be drilled through the diaphragms. - * s 3.2.10 Steam and exhaust connections. - 3. 2.10.1 Safe working stress. - The safe working stresses which integral steam inlet and exhaust connections, connected to external piping systems, will withstand, shall be as specified on the turbine drawing. 3. 2.10. 2 Extraction. - Provision for extraction from turbine casing will not be required. cr* SWS-G-823 3.2.. 11 B e a rin11 a* s--. - ... t . - 3. 2.11.1 Bearing shells and caps, - Bearing shells and '.caps shall be of boiler plate in accordance with class A or C of Specification J^J1>P-20167 or structural-plate in accordance with grade M of Specification 16113. Equivalent materials of similar chemical composition may be substituted for those specified-herein. ' .. 3. 2.11.2 Precision inserts. - Precision insert type bearings' as. approved by the Bureau of Ships may be used. Such bearings will r^qytire repairs as hereinafter provided. -: . - \ `* 3.2.11. 3 Bearing wear measurement. - Micrometer depth gages for measuring wear shall be supplied for all bearings on the turbines. Depth .gage-constants shall be stamped after installation in the vessel on small plates which are 'attached to each journal bearing cap by the turbine manufacturer. These $pge<5 shall be of a type which does not necessitate removal of bearing caps to take measurements. The micrometer graduations shall increase as the spindle is screwed down. One depth gage shall be supplied for each turbine.. When the micrometer is hot in use a collar type plug shall be used to close-the- spindle, opening in the bearing cap and prevent the formation of burrs'.' AH'bearings shall be properly marked for determination of. wear by the crows thickness- method. '. . 3.2.12 .-Thrust bearings. - Thrust bearing- babbitt thickness shall be less than the axial, clearance between, the rotor and stationary parts so.that,, in the event of wiping of-,the- entire- babbitt thickness, .the rotating, -element will not be damaged. ; : - . . ' . 3.2.13 Glands and gland packing. - ,. i 3.2.13.1 Labyrinth packing rings.'- labyrinth, packing''rings' stall be centri fugally cast bronze in accordance witn84-8-8 of Specification MEL-Cr15345 or other material approved by the Bureau of Ships. '' 3. 2.13.11 rfland-packing. - .Gland packing shall be.labyrinth type, steam. sealed^ . . ' ' 3.-2.IS;.8*- Gages..-. Cue-gage may Be mounted on the steam seal manifold and used to control gland seal steam, to both.glands. -. . 3. 2.14 Rotor and shafts. - -- .; 3. 2.14.1 Material. - Material shall be in accordance with class A of Specifica tion MIL-S-860. 7 SHIPS-G-823 3. 2.14. 2 Factor of safety. - At the maximum operating speed and with full load, the calculated minimum factor of safety based upon the proof stress of the class of steel used shall be 2. 5. " 3. 2.14. 3.-. Balancing.-.' If holes,are drilled.in turbine wheels either for. . balancing or for equalizing of pressure, the edges'of the holes shall have a . ' definite radius, and the surfaces, including the radii, shall be polished. 3.2.15 Nozzles and reversing chambers. - 3. 2.15.1 Material. - Nozzles and reversing chambers shall be of corrosionresisting steel in accordance with one of the following: ' Specification Class " . MIL-S-853' ' MIL-S-854 ' MIL-S-861 .... 3 3 a . ' '' 3.2.16 Blades, blade packing, shrouding, etc. - . 3.2.16.1 Material. - All blading material, except pins, shall be corrosion- resisting steel in accordance with Specification MIL-S-861. Packing pieces shall be integral with the blades. Blades shall be class a; shrouding shall be class b, except that Brinell hardness may be 160-240. Shroud stock shall be subjected to a 180-degree cold bend test .without cracking. Where blades are secured in bucket wheels by pins, the pins shall be of high temperature bolt material in accordance with Specification MIL-B-1222. 3.2.17 Diaphragms and intermediate segments. - 3. 2.17.1' Material. - -* . 3. 2.17.1.1 Diaphragms. - Diaphragms shall be of cast carbon steel (Specification MI-L-S-.15083, class B) or carbon steel boiler plate- (Specifica tion MIL-P-20167, class B) for temperatures up to 650 F., except that carbon steel may be used for temperatures up to 750F., with short time swings to 775 F., provided the design compensates for- the reduced allowable strength of the material; carbon-molybdenum cast-steel.in accordance with Specifica tion MIL-S-870 or boiler plate, molybdenum alloy in .accordance with Specification MIL-S-871 for temperatures up to 850 F., except that carbon molybdenum steel may be used for temperatures up to 875 F., with short 8 SE33PS-G-823' time swings- to. 900 F.., provided, the design compensates- for- fihe reduced allowable strength- of the material.. When earbon steel is used for tem^ezaiJaaress of 65QfF- to 750 F, or carbon molybdenum, steel is used for temperatures off SSG^F.. to 875* F., the allowable- stress is the stress rupture or the stress tor CL I percent plastic creep (both in 40, QOQ hoars)-, whichever is by an appro priate safety factor. 3.2.17.1.2 Nozzle partitions. - Diaphragm nozzle parlditoa shall be of corrosion-resisting steel in accordance with class a of Specification MU2-S-86T or class 3 of Specification MIL-S-85-3. . 3.2.17.1.2 Packing. - Diaphragm packing shall be labyrinth type- of centrii- fugally cast bronze in accordance with 84-8-8 of Specification M3IlLrC-15&4& or other material approved by the Bureau, of Ships. Carbon packingwiB.not be permitted. , 3.218. Redaction gears and couplings. - :' 3.2.. 18.1 Tooth pressure, - The requirements that **for helical gears, expressed in pounds per linear inch of pinion face at the pitch circle shall, not exceed 72-1/2 times the pitch diameter of the pinion in inches when the gear is transmitting the rated power'* is not required. So lieu of this, the eeKxi. factor shall not exceed 175. ' . ` ' i -. 3.2.18* 2 Tooth- finish. - Teeth shall be finished by grinding, shaving, or lapping, or combinations of same. The surface finish shall not exceed 15 micro inches root mean square as measured along the pitch line, for 80 percent of the tooth length parallel to the shaft axis- by means of a Profilometer or brush sur face analyzer being operated by skilled and experienced personnel. The tooth to tooth spacing shall not exceed 0.0002 inch as measured approximately an the pitch circle by a Maag Gear .Wheel Company Model TMA pitch measuring instrument or equivalent thereof being operated by skilled- and experience! personnel. 3. 2.19 Governing and excess pressure protective requirements. - 3.2-. 19.1 Relief valve and back pressure trip settings.- The exhaust relief valVe shall be- set to left at 16.p. s. i. g. and to give full relief at 30 p. s. i. g. The back pressure trip shall be set to operate atJjjp.s. ation. - Speed regulation shall be as required by 9 SHEPS-G-823 3. 2.19. 3 The governor synchronizing motor shall be a single phase, readily reversible a. c. motor in accordance with Specification MIL-M-1940. 3.2.20 Exhaust pressure protection. - The contractor shall demonstrate that, with the exhaustand.the steam inlet fully opened, pressure inside- the ' turbine casing will noqexceed 30 p. s. i. g. , 3.2.21 Fittings, - . . .............. 3.2.21.1 Gages. - 3.2.21.-1.1 Steam pressure gages shall be 4-1/2-inch diameter. 3. 2l'21Pl. 2- Gland seal steam pressure shall*be measured' by compound- retard type gages. 3.2.21.1.3 Revolution indicator. - Provision shall be made, for use-of a portable hand tachometer to set overspeed trips. Where this will unduly com plicate design:, -:a portable frequency meter graduated from 61 to 71 cycles; per second-may be furnished, '' . ' . ' . . * r ,, 3.2.21.-'2 Sight-flow fittings and thermometers. - The turbines shall be-fitted with combined sight-flow fittings and thermometers measuring oil outlet-tempera ture from each journal and thrust bearing. In addition, thermometers will be fitted to measure inlet1 and outlet oil temperature at the oil cooler. Thermometer range shall be 30 F. to 2`40a-F. :1 " ' ' 3.-2; 22 Performance. - Turbines and gears shall withstand performance tests specified in Specification MIL-G-3087 (combined unit tests). 3. 3 Condensers. - The condensers shall be designed and constructed in accordance with type n, class A of Specification MIL-C-15430 and shall be an integral part of the package unit composed of the turbine, generator, and condensers. 3. 3.1 Each condenser shall be designed to maintain 2. 5 inches Eg. absolute pressure at the turbine exhaust flange when the turbo-generator is operating at full rated power. 1 ' 3.3. 2 The condensers shall be 2 pass with ordering tube length to suit the package unit. 10 SHIPS-G-823 3.4 Air ejectors-.'? The turbo-generator condenser air ejector assemblies shall be designed and constructed in accordance with type A~af"Specifica- tion MIL-E-15465. ::-,The air.'ejector assemblies shall no* be a part of the package unit, but shall be designed for separate mounting. 3. 4.1 The air ejector assemblies shall be designed for-'.operation with steam conditions of 135 p. s. i. g. and-^^FTT. . . v. 3?^ .v, 3.4. 2 Each air ejector shall have sufficient capacity expressed'in pounds per hour free day air plus vapor to saturate at 7.5 F. below vacuum temperature to serve the condenser at full load condenser vacuum and also at 1. 5 inches Hg. absolute partial load condition. _ -r.-r.- . v :i>y. ... 3. 4.3 The allowable pressure drop when circulating full lad..condensate is 5 p. s.i. . ' /. -..ii: I-'.. ., , ff r f . 3. 4. 4 There are no specific limitations as to weight, space, foundations, sizes, - L ' . . .c-Si4sJ[5? A- gland exhaust condenser shall be provided. (An exhaust fan will be used but willnot be furnished by the contractor. ) , Steam supply .valves and piping shall be furnished by the contractor. Control valves are not required. ; 3. 4.7 Inter, after, and gland condensers shall be designed far 65. p.s. i. pressure from the condensate pomps. . - `v , . 3. 5 Lube-oil coolers. - The turbo-generator lubricating cal coolers shall be designed- and constructed In accordance with Specification MIL-C-15730 and shall form-aa integral part of the package turbo-generator condenser .unit. `, / . . . 3. 5.1 The oil coolers shall be type A, class 1 of Specification MEL-C-15730 for salt water, codling of the turbo-generator lubricating oil, ' 3. 5. 2 The cooler tubes may be of any of the sizes specified in Specifica tion MIL-Crl573Q. - ' .. i 11 SHEPS-G-823 3. 6 Instruction books. - Instruction books shall-be in accordance with type C of Specification MIL-B-15071, except that an introduction section shall be included. The following equipment shall be covered in the instruction book: ' Steam turbine and any associated accessories Reduction'gears ' ' ' '' Condensers ' Air ejectors Lube-oil Poolers - '-Generator --Exciter' Voltage regulator Manual control means - - 'Tempdrat-dre indicating and alarm devices Governor motor Special devices on equipment , - ir ' ' ' ' ' '' - ' 3.6.1 Instruction books shall contain reduced size prints .of all approved ' drawings for electric equipment, and a list of all approved drawings indicating' the manufacturer's and the Bureau of Ships drawing numbers in parallel columns. Books shall be approved by the Bureau of Ships prior to final printing.' - . - 3".' 6.'-2 Two copies of the finally approved instruction book shall be packed with each turbo-generator set at the time 'of shipment. 3. 7 -Drawings. - All drawings shall be master drawings in accordance with Specification MIL-D-963, and shall include information as required by the individual equipment specifications. . . .* !` ' 3^=7.1 Surface roughness shall be specified on all'mechanical drawings in accordance with Standard MIL-STD-10. Mechanical drawings shall be so com plete in every detail as to permit manufacture of parts at a Naval shipyard. 3. 7. 2 Instilla-tion drawings. - Installation drawings shall include the following: (a) All connections, electrical and mechanical weights, overall dimensions, and other data necessary to clearly describe the equipment. (b) An outline of the identification plate showing all plate markings and the location of the plate. (c) Piping diagrams, showing recommended connections for oil, water, steam, and exhaust necessary for proper installation and operation of the unit. (d) Type numbers, ratings (volts, amperes, r.p. m., kw., etc.), and name of manufacturer, of all electric equipment. 12 SHTPS-G-823 3. 7.3 All drawings shall be submitted to the bureau via the cognizant inspector for approval,. Ten copies of the installation drawing shall be sub mitted within 90 days from the date of contract for forwarding to the installing activities. Drawings for the turbine, gear, condenser, air ejector, lube-oil coolers, generator exciter, and control equipment shall be submitted for approval within 120 days from the date of contract. . 3.8 Repair parts and tools. - ' 3. 8.1 Onboard repair parts and tools. - Onboard repair parts and tools shall be furnished in accordance with the Individual equipment specifications supplemented as follows: ' 3. 8.1.1 In the list of turbine repair parts in Section 360-1 of General Specifications for Machinery, "Bearings, ball type, etc,, complete sets" is changed to read "Bearings, all types, complete sets" and "Bearings, sleeve type -- -- etc. " is changed to read "Bearing oil deflector rings, complete sets". 3. 8.1.2 Repair parts and tools for the turbine, gear* and electrical equip ment shall be furnished on the basis of 8 units per vessel for the units to be installed and.-on the .basis of 1 per vessel for the stock unit. Repair parts for the condensers, air ejector assemblies, and lube-oil coolers shall be furnished on the basis of one set for each unit supplied, . 3. 8,1.3 Standard Navy stock numbers shall be obtained for all parts in accordance with Specification MIL-R-15137. 3. 8,1,4 Turbine tools shall be provided in accordance with Section S50-1 of General Specifications for Machinery, except as follows: 3. 8.1.4.1 Babbitting mandrels shall not be furnished. ' 3. 8.1. 4,2 Bridge gages shall not be supplied. In lieu thereof, all bearings shall be properly scribed for measuring wear by the crown thickness method. 3. 8.1.4.3 Pulling tools shall be provided for ball bearings where a "complete" set of pullers under Specification JAN-P-690 is not adequate. 3. 8.2 Stock repair parts, - 3. 8.2.1 The Ships Parts Control Center, Naval Supply Depot, Mechanicsburg, Pennsylvania, controlled stock repair parts shall be furnished in accordance with Specification MIL-R-15137. 13 SHIPS-G-823 3. 8. 2.2 Bureau, of Ships controlled stock repair parts for the turbine and gear shall consist of the following: ' Item Quantity (a) Pinions with shafts. High speed pinions with shafts need 3 not be duplicated if furnished as part of turbine rotor. Each pinion with shaft to be boxed individually. (b) Gears with shafts. Each gear and shaft to be boxed 2 individually. (c) Throttle valve, complete, if actuated by governor or 2 emergency tripping devices. Each valve to be boxed individually. (d) Turbine rotor completely bladed and assembled with listing 1 (a),' if solid coupled to pinion. Each turbine rotor to be ' ; boxed individually. '' -(e) ' Complete sets of stationary impulse blading assembled in 3 intermediate segment or blade holder. If blades are - ' 'installed in'turbine casing, 105 percent blading material ' shall be furnished. Each individual row of blading material ` ~ to he separately boxed. ' (?) Complete sets of rotating blading materials, including blades 3 and all locking pieces, spacers, and undrilled or unpunched shrouding for all stages. Blading materials shall consist of material to be in a separate box. (g) First stage nozzle complete. Each nozzle to be boxed 2 individually. (h) Complete sets, including springs, etc., of diaphragm packing, 3 dummy seal strips, (105 percent) and labyrinth type gland packing when lifting casings is required. Each individual packing ring to be separately boxed. (i) Complete set of nozzle diaphragms without labyrinth packing. 2 Each individual diaphragm to be separately boxed. . 3. 8. 2. 3 Unless previously furnished, electrical shore repair parts shall include the following major components: One complete stator rewind kit for the a. c. generator. One complete set of field (rotor) coils for the a. c. generator. One complete armature for the exciter. 14 SBEPS-G-823 4.. SAMPLING, INSPECTION, AND TEST PROCEDURES 4.1 Inspection procedures, - The general inspection procedures shall, be- in accordance with General Specifications for Inspection of Meteri&L- . 4. 2 Tests shall be conducted on the turbo-generator units- in accordance with Specification MIL-G-3087. Test results on the first generator and com bined turbo-generator unit shall be forwarded to the. Bureau of Ships, for approval prior to shipment of the. units. - 4,3 ' -Radio interference noise test. - Radio interference ncase test, shall be . conducted :ih accordance with the manufacturer's- standard procedure as. approved by the'Bureau-of Ships. ;The results of radio interference noise tests shall notbe - causeifor-Treje'ction of the generator. ,3Cni.v.:V;'- .'. . ' .' r ' PREPARATION-FOR DELIVERY ' ' ' : 51-^Preservation and packaging of electrical items. - ` . 5.1.1 The generators and exciters shall be preserved and packaged in accordance with Specification MEL-P-16298. . 5.1. 2 The voltage regulators and rheostats shall be packaged and prepared for shipment in accordance with Specification JAN-P-658. 5. 2 Preservation and packaging, of turbines and gears. - The turbines and: gears shall be preserved and packaged in accordance with Specifica tion MIL-P-17286. S. 3 Preservation and packaging of condensers, stir ejectors^ and lube-oil coolers shall be in accordance with Specifications MIL-C-1543G,. MIL-E.-L5465, and MIL-C-15730, respectively. The air ejectors- shall be pa-cked for domestic shipment.in accordance with Specification MILrE-15465. 5.4 Packing. - .- 5.4.1 The complete turbo-generator units' intended, for- shipboard matallalim. shall be packed for domestic commercial shipment in accordance with Specifica tion MIL-P-16298. - 5.4. 2 The complete turbo-generator unit intended:for stock, shall be. packed: for domestic shipment in accordance with Specification MDLrP-1'6298:. 15 SHEPS-G-823 5.4.3 AH onboard repair parts shall be packed in metal boxes in accordance with type M of Specification MIL-B-233. 5. 5 Marking. - In addition to any special marking required by the contract or order, shipments shall be marked in accordance with Standard MIL-STD-129. 6. NOTES . ' 6.1 Not applicable. Notice. - When Government drawings, specifications, or other data are used for any purpose other .than in connection with a definitely related Govern ment procurement operation, the United States Government thereby incurs no responsibility nor any obligation whatsoever; and the fact that the Government may have formulated, furnished, or in any way supplied the. said drawings, specifications, or other data, is not to be regarded by implication .or otherwise as in any manner licensing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be related thereto. _ 16 ooo'ooi OOtfOl OOO'l 001 OH r