Amendment_2_Tech_Specs.pdf

LMA Transformer Drain OWS LMATDOWS

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 01.00 28 SUPPLEMENTARY REQUIREMENTS

01 14 00.10 28 PROJECT SITE RESTRICTIONS

01 14 00.90 28 INTEGRATING ANTITERRORISM (AT) AND OPERATIONS SECURITY

(OPSEC)

01 22 00.00 28 MEASUREMENT AND PAYMENT

01 32 16.00 28 SMALL PROJECT CONSTRUCTION PROGRESS SCHEDULES

01 33 00 SUBMITTAL PROCEDURES

01 35 29.10 28 GOVERNMENTAL SAFETY REQUIREMENTS

01 45 02.00 28 QUALITY CONTROL SYSTEM (QCS)

01 45 04.00 28 CONTRACTOR QUALITY CONTROL

01 57 20.00 28 ENVIRONMENTAL PROTECTION

DIVISION 03 - CONCRETE

03 30 90.00 28 MINISCULE CONCRETE

03 60 00.01 28 CONCRETE CORE DRILLING, REPAIR OF CONCRETE SURFACES

DIVISION 05 - METALS

05 50 01.00 28 METALWORK FABRICATION

DIVISION 22 - PLUMBING

22 05 29.00 28 PLUMBING PIPING AND EQUIPMENT

DIVISION 26 - ELECTRICAL

26 05 00.00 28 GENERAL ELECTRICAL WORK

-- End of Project Table of Contents --

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SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 14 00.10 28

PROJECT SITE RESTRICTIONS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 PROJECT SECURITY

1.3.1 Vehicle Access

1.3.2 Identification of Employees

1.3.3 Delivery of Equipment

1.4 FACILITY OCCUPANCY CLOSURE

1.5 WORK SCHEDULES

1.5.1 Contractor's Work Schedule

1.5.2 Government's Work Schedule

1.6 Restrooms

1.7 Contractor Lay Down Area

1.8 Access to Powerhouse

1.9 Contractors Office Location

1.10 Access Under Transformers

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used)

ATTACHMENTS:

Security Badge Form

-- End of Section Table of Contents --

SECTION 01 14 00.10 28 Page 1 g4edddjk Line

SECTION 01 14 00.10 28

PROJECT SITE RESTRICTIONS

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by the basic designation only.

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

Responsible for complying with the current edition and all changes posted on the web as of the effective date of this solicitation.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

SD-07 Certificates

1.3 PROJECT SECURITY

The Project site is a secured area and access onto the Project is restricted. The security measures affect all of the Contractor's vehicles and personnel. There will be delays when entering Projects due to locked gates, vehicle inspections, and personnel checks. Inspections and checks may include inspection of tool boxes, brief cases, lunch boxes, and other containers.

1.3.1 Vehicle Access

Project access roads on both sides of the dams are secured with locked gates. All vehicles that pass through the locked gates will be subject to being searched. No privately owned vehicles (POV's) will be allowed through locked gates. Only Contractor's work vehicles and equipment that are essential to the conduct of the work will be allowed in the work areas. All Contractor vehicles shall display suitable permanent or temporary identification.

SECTION 01 14 00.10 28 Page 2

1.3.2 Identification of Employees

XX CHECK WITH EACH DAM.. ...SOME ARE PROVIDING GOVT-FURNISHED BADGES XX

Note remove this paragraph from Dworshak jobs

Government Project personnel will provide the Contractor's personnel with identification badges as they arrive on site. The Contractor shall be responsible for furnishing the Security Badge Form(attached to the end of this SECTION) and initial identification (driver's license) for each employee five (5) business days prior to the employee arriving to work on the Project site, and upon issuance of official badges, for requiring each employee engaged on the work to display identification at all times.

Ensure each employee's full name with middle initial is included with the initial identification. All prescribed identification shall immediately be delivered to the Quality Assurance Representative for cancellation upon the release of the employee or project completion. If required by the Contracting Officer, employees will be photographed by the Government.

Employees who fail to submit to photographing will not be allowed on the project site.

Every Contractor employee (prime or subcontractor) shall have a hard hat meeting the requirements of

EM 385-1-1 . Hardhats shall display the Prime Contractor name, subcontractor name, and the employee's name. Contractor employee hardhats shall not be white with red markings. It shall be the responsibility of the Project Superintendent to enforce this requirement.

1.3.3 Delivery of Equipment

Responsible for delivery and receipt of all materials and equipment.

Government personnel will not be available to assist the Contractor in these activities. To the maximum extent possible, deliveries shall arrive on the same side of the river as the Contractor's work area. Delivery vehicles will be allowed to cross the river over the dam only with Government approval. Delivery vehicles arriving on the opposite side of the river as the work area shall be unloaded outside the locked gate, equipment shall be loaded onto Contractor's vehicles, and Contractor's vehicles will then be allowed to cross the dam to the work area.

1.4 FACILITY OCCUPANCY CLOSURE

Streets, walks, and other facilities occupied and used by the Government shall not be closed or obstructed without written permission from the Contracting Officer.

1.5 WORK SCHEDULES

1.5.1 Contractor's Work Schedule

At the Pre-Work Meeting, furnish a schedule of number of working days per week, shifts per day, and hours per shift for contract work. Furnish notification of any change of schedule of regular work hours, overtime work hours, and shifts of work crews and personnel at the site. This notification shall be provided a minimum of 48 hours prior to any schedule change to allow suitable scheduling of Government personnel and inspection. Exception to this requirement may be allowed in case of

SECTION 01 14 00.10 28 Page 3 g4edddjk Line schedule change due to emergency conditions.

1.5.2 Government's Work Schedule

The maintenance crews at the dam work from 6:30 a.m. to 5:00 p.m., Monday through Thursday. Crews and staff do not work on weekends and Federal holidays. If a Federal holiday falls on a Friday, the crews and staff do not work on the preceding Thursday. A powerhouse operator is at the site 24 hours a day, 7 days a week, including Federal holidays but is not available to assist the Contractor.

If the Contractor requires Government support or assistance outside of normal work hours, the Contractor must make a formal written request to the Contracting Officer at least one week prior to the date that support/assistance is needed. The Government will review this request, but there is no guarantee that Government support or assistance can be provided.

1.6 Restrooms

Contractor is responsible for self contained worker sanitation units.

1.7 Contractor Lay Down Area

An area will be provided for the Contractor to store materials in the Project storage area on the north side of the dam inside the security fence. No power is available at this area.

1.8 Access to Powerhouse

Access to inside of Powerhouse will be by stairway,or 4,000 pound capacity passenger elevator. Larger items can be lowered through craneway. See FIO-024 and 025. Reseal craneway with Viton caulk at the end of the job.

1.9 Contractors Office Location

Contractor may place an office trailer max size 12'x 20' on the intake deck near the worksite. There is a 11V/15A receptacle and a 460V/30A receptacle available for the Contractors use. There is no internet or phone available.

1.10 Access Under Transformers

Minimum clearance under the transformers for Remedial seals is 12" under the base of the transformer, 15" under the cooling fins. The oil temperature in the transformers ranges from 118 to 140 degrees F. It is not pheasible to shut the transformers down for the seal installation. The space under the transformer is not a permit required confined space. The transformers are not leaking, so there will not be any exposure to the oil. Sound level under the transformers is 95 db. Water hose bibs are winterized after 1-November.

PART 2 PRODUCTS (Not Used)

PART 3 EXECUTION (Not Used) -- End of Section --

SECTION 01 14 00.10 28 Page 4 g4edddjk Line

SECTION TABLE OF CONTENTS

DIVISION 22 - PLUMBING

SECTION 22 05 29.00 28

PLUMBING PIPING AND EQUIPMENT

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 DELIVERY, STORAGE, AND HANDLING

1.4 Lay Out Drawings

PART 2 PRODUCTS

2.1 PIPING

2.1.1 Galvanized Steel Piping

2.1.2 Valves

2.1.2.1 Ball Valves

2.1.3 Air Vacuum Valves

2.1.4 Oil Float Valve

2.1.5 Dielectric Fittings

2.1.6 Expansion Joints

2.1.7 Water Level Switch

2.1.8 Oil Level Switch

2.1.9 Filter Canister

2.1.10 Filter Elements

2.1.11 Petro-Pipe

2.2 MISCELLANEOUS PIPING MATERIALS

2.2.1 Flanges

2.2.2 Threaded Fittings

2.3 PIPE SUPPORTS

2.3.1 Auxiliary Steel

2.3.2 Standard Pipe Supports

2.4 ADHESIVE ANCHORS

2.4.1 Epoxy Adhesive

2.4.2 Anchor Studs

2.4.3 Threaded Fasteners

2.4.3.1 Bolts

2.4.3.2 Nuts

2.5 METAL FRAMING SYSTEM MATERIALS

2.5.1 Channel Strut

2.5.2 Fittings

2.6 GALVANIZING

2.6.1 Hot-Dip Galvanizing

2.6.2 Electro-Plated Zinc

2.7 ZINC RICH PAINT

2.8 Fluoroelastomer Seal Material

PART 3 EXECUTION

3.1 INSTALLATION

3.1.1 Piping Joints

3.1.1.1 Threaded

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3.1.1.2 Unions and Flanges

3.2 PIPING SUPPORT SYSTEMS INSTALLATION

3.2.1 General Support Requirements

3.2.2 Sizes of Threaded Fasteners and Hanger Rods

3.2.3 Dielectric Barriers

3.2.4 Support Spacing

3.2.5 Support Methods

3.2.6 Installation of Adhesive Anchors

3.3 METAL FRAMING INSTALLATION

3.4 WELDING

3.5 System Testing

-- End of Section Table of Contents --

SECTION 22 05 29.00 28 Page 2 g4edddjk Line

SECTION 22 05 29.00 28

PLUMBING PIPING AND EQUIPMENT

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)

ASTM A 36/A 36M (2000) Carbon Structural Steel

ASTM A 153/A 153M (2000) Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A 167 (1999) Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

ASTM A 307 (1997) Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

ASTM A 563 (1994) Carbon and Alloy Steel Nuts

ASTM A 635 (1998) Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Carbon, Hot-Rolled

ASTM A 653 (1998) General Requirements for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A 924/A 924M (1997a) General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ASTM B 633 (1998) Specification for Electrodeposited Coatings of Zinc on Iron and Steel

ASTM C 881 (1990) Epoxy-Resin-Base Bonding Systems for Concrete

ASME INTERNATIONAL (ASME)

ASME B1.20.1 (2013) Pipe Threads, General Purpose (Inch)

ASME B16.21 (2011) Nonmetallic Flat Gaskets for Pipe Flanges

ASME B16.3 (2011) Malleable Iron Threaded Fittings, Classes 150 and 300

SECTION 22 05 29.00 28 Page 3

ASME B16.5 (2013) Pipe Flanges and Flanged Fittings:

NPS 1/2 Through NPS 24 Metric/Inch Standard

ASME B31.1 (2016) Power Piping

AMERICAN SOCIETY OF SANITARY ENGINEERING (ASSE)

ASSE 1020 (2004; Errata 2004; Errata 2004) Performance Requirements for Pressure Vacuum Breaker Assembly (ANSI Approved 2004)

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1 (2000) Structural Welding Code - Steel

METAL FRAMING MANUFACTURERS ASSOCIATION (MFMA)

MFMA-3 (1999) Metal Framing Standards Publication

MFMA-102 (1999) Guidelines for the Use of Metal Framing

ASTM INTERNATIONAL (ASTM)

ASTM A105/A105M (2014) Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A193/A193M (2016) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service and Other Special Purpose Applications

ASTM A516/A516M (2010; R 2015) Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-25 (2013) Standard Marking System for Valves, Fittings, Flanges and Unions

MSS SP-58 (2009) Pipe Hangers and Supports - Materials, Design and Manufacture

MSS SP-69 (2003; Notice 2012) Pipe Hangers and Supports - Selection and Application (ANSI Approved American National Standard)

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC Paint 20 (1991) Zinc-Rich Primers (Type I - "Inorganic" and Type II - "Organic")

SSPC SP 2 (1995) Hand Tool Cleaning

SSPC SP 3 (1995) Power Tool Cleaning

SECTION 22 05 29.00 28 Page 4

SSPC SP 7/NACE 4 (1994) Brush-Off Blast Cleaning

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

CID A-A-2962 (Rev A; Notice 2) Enamel, Alkyd, Gloss, Low VOC Content

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals having an "I" designation are for information only. A designation following the "G" or "I" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Lay Out Drawings; G, M

Pipe Supports; G, M

SD-03 Product Data

Epoxy Adhesive; G; G, M

Metal Framing System Materials; G, M

Air Vacuum Valves; G, M

Expansion Joints; G, M

Fluoroelastomer Seal Material; G, M

Oil Float Valve; G, M

Petro-Pipe; G, M

SD-07 Certificates

Welders Qualifications and Welding Procedures; G, C

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver piping, metal framing systems, threaded fasteners, pipe supports, pipe hangers, brackets and other components carefully to avoid breakage, denting, and scoring finishes. Do not install damaged equipment or materials. Store in original cartons and in clean dry space; protect from weather and construction traffic.

1.4 Lay Out Drawings

The Contractor shall provide plumbing system drawings. Drawings shall consist of plans drawn to scale, with elevations and sections to show clearly the location (by dimension relative to pertinent building features) and routing of all piping for the entire plumbing system, including but not limited to; details of connections and size and type of piping, all support types and locations, pipe thrust restraints, sway braces, and appurtenances.

SECTION 22 05 29.00 28 Page 5

PART 2 PRODUCTS

2.1 PIPING

2.1.1 Galvanized Steel Piping

Where required, steel pipe shall be galvanized. Galvanized steel pipe shall be ASTM A 153/A 153M , Type S, Grade B, Seamless pipe. Galvanized pipe fittings shall be malleable-iron threaded fittings, Galvanized and conforming to the requirements of ASME B16.3 ASME B16.3 .

2.1.2 Valves

Valves shall be suitable for a minimum of 125 psig. Valves shall have flanged end connections, except that sizes smaller than 2.5 inches may have threaded end connections with a union on all but one side of the valve, or solder end connections for connections between bronze valves and copper tubing.

2.1.2.1 Ball Valves

Ball valves shall conform to the requirements of MSS SP-58 full port design, copper alloy. Valves shall have two-position lever handles.

2.1.3 Air Vacuum Valves

The Air Vacuum valves shall be a combination anti-siphon pressure vacuum breaker and air release valve, and shall be installed as indicated to prevent vacuum buildup and the formation of air pockets. The valve body shall be constructed of ductile iron with a stainless steel float. The valve shall conform to the minimum requirements of ASSE 1020 ASSE 1020 . The valve shall be installed in accordance with the Plumbing Code. The valve shall be rated for a minimum of 200 psi and the orifice sized appropriately for the intended use.

2.1.4 Oil Float Valve

Provide float valve in Oil/Grit Trap with float with specific gravity of .95 so that the float will float in water and open valve, but float will sink in oil and close the valve. The specific gravity of the oil will be .90.

2.1.5 Dielectric Fittings

Connections between piping or components with dissimilar materials shall be isolated with a dielectric union or flange.

2.1.6 Expansion Joints

Install expansion joints in the main drain header at each concrete monolith joint to allow for monolith expansion/contraction. Minumum 125 psi rating,3/8 Inch Extension, 1/2 Inch Compression.

2.1.7 Water Level Switch

Water level switch shall have a float with .75 maximum specific gravity,so that it floats in both water and oil, with normally open contacts.See section 26 05 00.00 28 for electrical requirements.

SECTION 22 05 29.00 28 Page 6 g4edddjk Line

2.1.8 Oil Level Switch

Oil level switch shall have a float with .90 specific gravity,so that it floats in water but not in oil with normally closed contacts.See section 26 05 00.00 28 for electrical requirements.

2.1.9 Filter Canister

Harmsco # HMC-21-FL or equal.

-304 stainless steel construction, -150 psi pressure rating, -21 filter cartridge, -30"x 2-3/4" double open end cartridges, -Built to ASME design standards, -Assisted davit arm closure, -4" flanged inlet/outlet

2.1.10 Filter Elements

Provide 63 MYCELX oil removal filter elements or equal.

-30" long by 2-5/8" diameter double open end filter elements.

-Spunbound polypropylene treated to solubilize hydrocarbon compounds and bond them to the filter surface -5 micron pore size -360g oil loading capacity

2.1.11 Petro-Pipe

Provide Petro-Pipe PI-616-M4 or equal. 6" x 16" with 4" male fitting. Oil shut off filter. Provide 1 installed and 1 spare.

2.2 MISCELLANEOUS PIPING MATERIALS

2.2.1 Flanges

Flanged fittings including flanges, bolts, nuts, bolt patterns, etc., shall be in accordance with ASME B16.5 Class 150 and shall have the manufacturer's trademark affixed in accordance with MSS SP-25 . Flange material shall conform to ASTM A105/A105M .

Blind flange material shall conform to ASTM A516/A516M . Bolts shall be high strength or intermediate strength with material conforming to ASTM A193/A193M . Flange gaskets shall be full face flat type and conform to the requirements of ASME B16.21 , the gasket material shall be synthetic rubber.

2.2.2 Threaded Fittings

Threaded fittings shall be made of galvanized malleable iron and conform to the requirements of ASME B16.3 .

2.3 PIPE SUPPORTS

Pipe supports shall be designed by the Contractor to conform the following:

2.3.1 Auxiliary Steel

Auxiliary steel shall be provided by the Contractor where the support of

SECTION 22 05 29.00 28 Page 7 g4edddjk Line g4edddjk Line g4edddjk Line piping systems and equipment is required between building structural elements. Light gauge and structural steel shapes shall conform to the requirements of ASTM A 36/A 36M . After fabrication and cutting, steel surfaces shall be cleaned mechanically with hand tools according to SSPC SP 2 , power tools according to SSPC SP 3 or by sandblasting according to SSPC SP 7/NACE 4 and primed and painted. Two coatings of SSPC Paint 20 primer and one coat of CID A-A-2962 paint shall be shop applied to structural steel associated with pipe supports. The Contractor shall have the option to use pre-engineered support systems of electrogalvanized steel products. However, a mixture of support system manufacturers products is not permitted. Where auxiliary steel is indicated as stainless steel, the Contractor shall provide TP304 stainless steel conforming to ASTM A 167 , No. 1 Finish .

2.3.2 Standard Pipe Supports

Pipe supports shall conform to the requirements of MSS SP-58 , MSS SP-69 .

Where pipe supports contact bare piping or in-line devices, provide supports of compatible material so that neither shall have a deteriorating action on the other.

2.4 ADHESIVE ANCHORS

Materials as specified below.

2.4.1 Epoxy Adhesive

Two component paste meeting the requirements of ASTM C 881 Type IV, Grade

3. Select Class A,B, or C as appropriate for the surface temperature of the concrete inside the hole predrilled for the anchor stud.

2.4.2 Anchor Studs

ASTM A 307 zinc coated.

2.4.3 Threaded Fasteners

2.4.3.1 Bolts

ASTM A 307 zinc coated.

2.4.3.2 Nuts

ASTM A 563 zinc coated.

2.5 METAL FRAMING SYSTEM MATERIALS

Submit Manufacturer's descriptive and technical literature. Strut system materials shall conform to the following:

2.5.1 Channel Strut

Channel Strut shall be made from steel meeting the minimum mechanical properties of ASTM A 653 , Designation SS, Grade 33, Hot-dip galvanized.

Channel Strut shall be in compliance with MFMA-3 and be 1-5/8 inches wide in varying heights and welded combinations as required to meet load capacities and designs indicated.

SECTION 22 05 29.00 28 Page 8

2.5.2 Fittings

Fittings shall be manufactured from steel meeting the minimum requirements of ASTM A 635 , Structural Quality, and Hot-dip galvanized.

2.6 GALVANIZING

Where specified or indicated, galvanizing of steel components shall conform to one of the following:

2.6.1 Hot-Dip Galvanizing

Galvanizing shall be hot-dip applied and meet the requirements of ASTM A 123 , ASTM A 924/A 924M or ASTM A 153/A 153M as applicable.

2.6.2 Electro-Plated Zinc

ASTM B 633 , SC1.

2.7 ZINC RICH PAINT

SSPC Paint 20 .

2.8 Fluoroelastomer Seal Material

Remedial seal sheet material, adhesive and caulking shall be Viton fluoroelastomer material or equal with the following carateristics:

- Chemical resistance to oils and solvents

- Resistant to temperatures up to 400 degreees F

- Ultoviolet and ozone resistant

- Adheres to concrete and steel

PART 3 EXECUTION

3.1 INSTALLATION

Installation of plumbing systems including piping, backflow preventers, equipment, materials, and workmanship shall be in accordance with the ICC Plumbing Code , except as modified herein. Plastic piping shall not be permitted.

3.1.1 Piping Joints

Installation of pipe and fittings shall be made in accordance with the manufacturer's recommendations. Mitering of joints for elbows and notching of straight runs of pipe for tees will not be permitted. Joints shall be made up with fittings of compatible material and made for the specific purpose intended.

3.1.1.1 Threaded

Threaded joints shall have American Standard taper pipe threads conforming to ASME B1.20.1 . Only male pipe threads shall be coated with graphite or with an approved graphite compound, or with an inert filler and oil, or shall have a polytetrafluoroethylene (PTFE) tape applied.

3.1.1.2 Unions and Flanges

Unions, flanges and mechanical couplings shall not be concealed in walls, SECTION 22 05 29.00 28 Page 9 ceilings, or partitions. Unions shall be used on pipe sizes 2-1/2 inches and smaller; flanges shall be used on pipe sizes 3 inches and larger.

3.2 PIPING SUPPORT SYSTEMS INSTALLATION

The absence of pipe supports and details on the contract drawings shall not relieve the Contractor of responsibility for sizing and providing supports throughout plant.

3.2.1 General Support Requirements

Pipe support systems shall meet the requirements of MSS SP-58 .

Contractor-designed and selected support systems shall be installed in accordance with MSS SP-69 , and as specified herein. Piping connections to equipment shall be supported by pipe supports and not off the equipment.

Large or heavy valves, fittings, and/or equipment shall be supported independently of associated piping. Pipes shall not be supported off other pipes. Supports shall be provided at piping changes in direction or in elevation, adjacent to flexible joints and couplings, and where otherwise shown on the contract drawings. Pipe supports and hangers shall not be installed in equipment access areas or bridge crane runs. Hanging pipes shall be braced against horizontal movement by both longitudinal and lateral sway bracing. At each channel type support, every pipe shall be provided with an intermediate pipe guide, except where pipe anchors are required. Existing support systems may be used to support additional new piping only if the Contractor can demonstrate that the existing support systems are adequate for the additional loads, or if the existing systems are strengthened to support the additional loads. Pedestal type pipe supports shall be provided under base flanges adjacent to rotating equipment and where required to isolate vibration. Piping 2.5 inches in diameter and larger shall be braced for seismic forces. Lateral supports for seismic loads shall be installed at all changes in direction.

3.2.2 Sizes of Threaded Fasteners and Hanger Rods

Threaded fasteners, hanger rods and associated hardware shall be full size for the connection holes in standardized pipe supports. The size of threaded fasteners, hanger rods and associated hardware for piping system support shall be the larger of that indicated or recommended by the manufacturer of the hanger or support, but shall not be smaller than the size given in ASME B31.1 for carrying capacities of threaded hot rolled carbon steel rods.

3.2.3 Dielectric Barriers

Dielectric barriers shall be installed between supports and copper or stainless steel piping, and between stainless steel supports and non-stainless steel ferrous piping.

3.2.4 Support Spacing

Support spacing shall be in accordance with MSS SP-58

3.2.5 Support Methods

Piping support shall be provided as specified and as shown in the contract drawings. Single horizontal suspended piping shall be supported by adjustable swivel-ring, split-ring, or clevis hangers. Multiple horizontal suspended piping shall be supported by trapeze hangers with

SECTION 22 05 29.00 28 Page 10 channel type supports . Horizontal pedestal mounted piping shall have saddle type supports. Horizontal wall mounted piping shall have wall brackets . Vertical piping shall be supported by wall brackets, base elbows, or riser clamps on floor penetrations .

3.2.6 Installation of Adhesive Anchors

Drill holes in concrete to provide the anchor embedment depth indicated or recommended by the manufacturer, whichever is greater. The diameter of the drilled holes shall be as recommended by the manufacturer of the epoxy adhesive for epoxy anchors. The inside surfaces of the holes drilled for epoxy anchors shall be clean and dry when the Epoxy Adhesive and anchor studs are placed. Place the epoxy adhesive and anchor rods as recommended by the manufacturer.

3.3 METAL FRAMING INSTALLATION

Install strut as indicated and in accordance with equipment manufacturer's recommendations and MFMA-102. All nuts and bolts shall be tightened to the following values:

Bolt Size Torque (ft-lbs)

1/4 - 20 6 5/16 - 18 11 3/8 - 16 19 1/2 - 13 50

3.4 WELDING

Weld pipe support systems in accordance with qualifying procedures using performance qualified welders and operators. Welders qualifications and welding procedures shall be in accordance with AWS D1.1 . Submit welders qualifications, welding procedures and the names of all qualified welders, their identifying symbols, and the qualifying procedures for each welder including support data such as test procedures used, standards tested to, etc.

3.5 System Testing

The system is designed to collect rain water from each of the transformer containment areas and convey it to the oil/grit trap where the free oil will rise to the top and the grit will settle to the bottom. The water then flows through the oil float valve to the oil filter to capture any entrained oil and then throught the Petro Pipe to the floor drain. When oil accumulates in the oil/grit trap from a large oil spill, the float will sink and close the valve causing the oil to back up into the containment area. Each containment drain has a check valve to prevent oil from one containment area from flowing to another containment area. If enough oil gets to the filters to saturate the filters, then the Petro pipe will plug and shut off flow, causing the oil & water to back up into the containment area. The oil level switch detects when oil has started to build up in the oil/grit trap. It will activate before the oil float vave activates. The water level switch activates when water backs up into the containment vaults.

Testing shall be as follows:

- Close valve at inlet to filter.

- Fill system with water through containment area drains.

SECTION 22 05 29.00 28 Page 11 g4edddjk Line

- Check system for leaks.

- Check function of water level switch.

- Open valve at inlet to filter.

- Check that water level switch clears.

- Slowly pour 50 gallon of oil provided by Government into drain in T1 containment area.

- Check function of oil float valve by adding water to T1 drain until it backs up into containment area.

- If fload valve does not close off, readjust valve and retest.

- Recover oil from oil draw off port on Oil/Grit Trap.

-- End of Section --

SECTION 22 05 29.00 28 Page 12 g4edddjk Line