271101_IEI-SPEC__addendum_00005Communication_Equipment_Rooms.pdf

COMMUNICATION EQUIPMENT ROOMS 271101 - 1

SECTION 271101 - COMMUNICATION EQUIPMENT ROOMS

PART 1 - GENERAL

1.1. SUMMARY

A. Work Included:

1. Telecommunications Backboards

2. Wall Mount Equipment Racks

3. Horizontal Wire Managers

4. Telecommunications Grounding

B. The telecommunications equipment room is intended to house racks, cabinets and equipment necessary for the support of the voice and data cabling infrastructure as well as other low-voltage systems.

1.2. RELATED SECTIONS

A. Contents of Division 27, Communications and Division 01, General Requirements apply to this

Section.

1.3. REFERENCES AND STANDARDS

A. References and Standards as required by Section 27 00 00, Communications Basic

Requirements and Division 01, General Requirements.

B. Use this Section in conjunction with the other Division 27, Communications Sections and related Contract Documents to establish the total general requirements for the project technology systems and equipment.

1.4. SUBMITTALS

A. Submittals as required by Section 27 00 00, Communications Basic Requirements and Division

01, General Requirements.

1.5. QUALITY ASSURANCE

A. Quality assurance as required by Section 27 00 00, Communications Basic Requirements and

Division 01, General Requirements.

1.6. WARRANTY

A. Warranty of materials and workmanship as required by Section 27 00 00, Communications

Basic Requirements and Division 01, General Requirements.

1.7. SYSTEM DESCRIPTION

A. The communications room distribution subsystem refers to the passive components used to terminate cabling subsystems and distribute technology services.

ISSUED VIA ADDENDUM 00005 August 8, 2017

COMMUNICATION EQUIPMENT ROOMS 271101 - 2

PART 2 - PRODUCTS

2.1. MANUFACTURERS

A. Telecommunications Backboards:

1. Reference 2.02A for requirements.

2. Or approved equivalent.

B. Wall Mount Equipment Racks:

1. Chatsworth; Model 11791-725.

2. Or approved equivalent.

C. Horizontal Wire Managers:

1. 19-inches wide, two rack units high:

a. Chatsworth; Model 35441-702.

b. Or approved equivalent.

2. 19-inches wide, one rack unit high.

a. Chatsworth; Model 35441-701.

b. Or approved equivalent.

D. Telecommunications Grounding:

1. Telecommunications Main Grounding Busbar (TMGB):

a. Chatsworth; Model 40153-020.

b. Or approved equivalent.

2. Telecommunications Ground Accessories:

a. One Hole Ground Terminal Block:

1) Chatsworth; Model 08009-001.

2) Or approved equivalent.

b. Two Hole Ground Terminal Block:

1) Chatsworth; Model 40167-001.

2) Or approved equivalent.

c. Two Hole Grounding Lug:

1) Chatsworth

2) Or approved equivalent.

2.2. TELECOMMUNICATIONS BACKBOARDS

A. 3/4-inch minimum thickness, A/C grade or better, void-free plywood, fire treated backboard.

2.3. WALL MOUNT EQUIPMENT RACKS

A. 43-inches high, 25-inches deep, 19-inches wide, swing gate, UL listed, black finish.

2.4. HORIZONTAL WIRE MANAGERS

A. 19-inches wide, two rack units high.

B. 19-inches wide, one rack unit high.

COMMUNICATION EQUIPMENT ROOMS 271101 - 3

2.5. TELECOMMUNICATIONS GROUNDING

A. Telecommunications Main Grounding Busbar (TMGB): Solid copper busbar kit, 20-inches long, 1/4-inch thick, wall mounted with standoffs.

B. Telecommunications Grounding Busbar (TGB): Solid copper busbar kit, 10-inches long, 1/4-inch thick, wall-mounted with standoffs.

C. Telecommunications Ground Accessories:

1. One hole ground terminal block, holds two wires up to size #4.

2. Two hole ground terminal block, holds two wires up to size 2/0.

3. Two hole grounding lug.

4. Cable runway ground strap kit.

PART 3 - EXECUTION

3.1. GENERAL INSTALLATION REQUIREMENTS

A. Provide all components of the telecommunications system from a single manufacturer.

B. Make floor penetrations no more than 4-inches from wall. Install conduit stubs to extend 4-inches from floor base. Cap conduits for protection.

C. Seismic installations require additional bracing of equipment rack to building structure, as advised by and certified by a licensed structural engineer.

3.2. TELECOMMUNICATIONS BACKBOARDS

A. Mount plywood backboard vertically, 4-inches from floor, all walls covered within the telecommunications space.

B. Mount backboards with the smooth "A" surface facing away from the wall. Paint the backboard with two coats of fire resistant paint prior to mounting.

C. Install boards plumb, level and secured to studs or solid concrete or masonry walls. Use a minimum of six appropriate fasteners for every 16 SF of backboard. Anchors for attaching equipment boards include:

1. Material/Substrate: Anchor type.

2. Concrete/Masonry: Expansion anchors; wedge type with washer located on the backside of the board.

3. Gypsum Wallboard: Togglebolts; use pan head type.

D. Powder drive anchors, molly bolts and tappets are not allowed.

3.3. WALL MOUNT EQUIPMENT RACKS

A. Position equipment racks according to drawings with a minimum of 3-feet of clearance in front.

Field verify the dimensions of the room prior to installation of racks and report any discrepancies to the Contracting Officer.

COMMUNICATION EQUIPMENT ROOMS 271101 - 4

3.4. HORIZONTAL WIRE MANAGERS

A. Reference 3.01, General Installation Requirements.

B. Install per manufacturer's instructions and recommendations.

3.5. TELECOMMUNICATIONS GROUNDING

A. Bond equipment rack to the equipment room TMGB with #6 AWG or larger, stranded copper conductor.

B. Connect the TMGB to the main electrical main distribution panel and building steel using a 3/0

AWG or larger, stranded copper conductor. Coordinate exact routing and connection points with the electrical contractor.

C. Two hole lugs are required on all ground cable connecting to the TMGB.

END OF SECTION