08 34 46 RADIO-FREQUENCY-INTERFERENCE SHIELDING DOORS_r1.pdf

558-CSI-400 Replace MRI 1.5T 01-01-21 Durham VA Healthcare System Addendum 01

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SECTION 08 34 46

RADIO-FREQUENCY-INTERFERENCE SHIELDING DOORS

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Radio-frequency-interference shielding doors and frames at interior locations.

1.2 RELATED WORK

A. Radio-Frequency Interference Shielding Envelope: Section 13 49 26, RADIO-FREQUENCY SHIELDING

B. Card Readers and Biometric Devices: Section 28 13 00, PHYSICAL ACCESS

CONTROL SYSTEM.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. American National Standard Institute (ANSI):

A250.8-2014.............Standard Steel Doors and Frames

C. ASTM International (ASTM):

B209-14.................Aluminum and Aluminum-Alloy Sheet and Plate

B209M-14................Aluminum and Aluminum-Alloy Sheet and Plate

(Metric)

B221-14.................Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

B221M-13................Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)

E90-09..................Laboratory Measurement of Airborne Sound

Transmission Loss of Building Partitions and

Elements

D. National Association of Architectural Metal Manufacturers (NAAMM):

AMP 500-06..............Metal Finishes Manual

E. Military Standard (MIL-STD) MIL-STD-285 Attenuation of Measurements for Enclosures

F. Department of Veterans Affairs VA Physical Security and Resiliency Design Manual October 1, 2020

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

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B. Submittal Drawings:

1. Show size, configuration, fabrication, and installation details.

C. Manufacturer's Literature and Data:

1. Description of each product.

2. Include schedule showing each door and frame requirements for openings.

3. Installation instructions.

D. Test reports: Certify each product complies with specifications.

1. Sound rated door.

2. MIL-STD-285 – Attenuation performance.

E. Qualifications: Substantiate qualifications comply with specifications.

1. Manufacturer with project experience list.

F. Installer: Substantiate qualifications comply with specifications.

1. Installer with project experience list.

2. Written approval to install from Manufacturer.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications:

1. Doors to be provided by same manufacturer providing the radiofrequency wall, ceiling, and flooring panels.

2. Regularly manufactures specified products.

3. Manufactured specified products with satisfactory service on five similar installations for a minimum of five years.

a. Project Experience List: Provide contact names and addresses for completed projects.

B. Installer Qualifications:

1. Written approval to install from product manufacturer.

1.6 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.7 STORAGE AND HANDLING

A. Store products indoors in dry, weathertight, conditioned facility.

B. Protect products from damage during handling and construction operations.

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1.8 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

PART 2 - PRODUCTS

2.1 RADIO-FREQUENCY SHIELDED DOORS

A. Provide door, frame, hardware and threshold as indicated with purpose manufactured MRI door system with a demonstrated life cycle test rating of at least (10,000) operational cycles without loss of specified RF attenuation, from a single manufacturer with a minimum of 5 years track record and 2 years for the products supplied. Supply assemblies complete with a rigid structural frame, hardware, seals and parts necessary for operation.

1. Door Hardware:

Description: Product: Finish: Manufacturer:

Hinge Continuous 626/US26D Falcon, or as provided by Door Manufacturer.

Lock Privacy Lever 626/US26D Falcon

Core 7-Pin, Removable Best

Stop Wall Stop 626/US26D -

Kick Plates 10” X Width of

Door

626/US26D -

Card Reader Match existing Match Existing

Door

Contact/Power

Supply

Compatible with

PACS

626/US26D Falcon, or as compatible with PACS

Silencer 3 silencers for each door

Warning Light w/ Door Switch Existing, To remain

Existing, To remain

a. Physical Access Control System (PACS): Existing to remain, including card reader.

1) New hardware to be compatible with existing PACS system, card reader, and all existing equipment listed to remain.

b. Fastening of kickplates to not interfere with attenuation performance of the door.

c. Threshold: Aluminum, ABA, low profile.

2. Size(s): As indicated on the drawings.

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3. Finish: High-Pressure Plastic Laminate. Finish to be chosen from Manufacturer’s full spectrum of finishes.

4. Sound-Transmittance Class: STC-40, minimum, when tested according to

ASTM E90.

5. Radiofrequency Shielding:

a. Submit RF attenuation performance requirements based on VA Physicist electromagnetic interference (EMI) field measurements, and evaluation of site conditions, in consultation with the MRI equipment manufacturer. Ensure that RF shielding system fully complies with the MRI equipment manufacturer’s requirements.

PART 3 - EXUCUTION

3.1 PRE-INSTALLATION

A. Before installation, inspect job site for any nonconforming work, and report such instances to the General Contractor and VA COR.

B. Confirm working compatibility of the new door and door hardware with the existing Physical Access Control System before ordering and installation.

3.2 INSTALLATION – GENERAL

A. Install products according to manufacturer's instructions and approved submittal drawings.

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

3.3 INSTALLATION - FRAMES

A. Plumb, align, and brace frames until permanent anchors are set.

B. All permanent and temporary anchors to be non-ferrous.

1. Floor anchors:

a. Anchor frame jambs to the floor with two expansion bolts.

1) 9 mm (3/8 inch) diameter bolts.

b. Power actuated drive pins are not acceptable.

2. Jamb Anchors:

a. Metal framed walls: Secure anchors to sides of studs with two fasteners through anchor tabs.

C. All fasteners are to be non-ferrous.

D. Use temporary and permanent wood spreaders and blocking as necessary.

E. Fill frames with insulation.

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3.4 INSTALLATION - DOORS

A. Install doors plumb and level.

B. Adjust doors for smooth operation.

C. Touch up damaged factory finishes.

1. Repair galvanized surfaces with galvanized repair paint.

2. Repair painted surfaces with touch up primer.

3.5 CLEANING

A. Clean exposed door and frame surfaces. Remove contaminants and stains.

3.6 PROTECTION

A. Protect doors and frames from traffic and construction operations.

B. Remove protective materials immediately before acceptance.

C. Repair damage.

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