Attachement A LCPS modification to PA specifications.pdf

ATTACHMENT A

MODIFICATION TO SCHOOL INTERCOM SYSTEMS - SPECIFICATIONS

A. General Scope

1. Provide voice activated strobe lights in rooms indicated on prints to provide visual indication of a page announcement in progress.

2. Provide complete and fully functional systems with devices and components as required and as indicated. System as shown and as specified represents design intent and is not reflective of installed quantities and miscellaneous components, except as minimums.

1.2 SUBMITTALS

A. Product Data: For the following:

1. Controls, amplifiers, and terminal equipment.

2. Power supplies.

3. Wiring.

B. Shop Drawings:

1. Equipment Details: Detail equipment assemblies and indicate dimensions, weights, required clearances, method of field assembly, components, and location of each field connection.

2. Station-Arrangement Details: Scaled drawings for built-in equipment.

3. Wiring Diagrams: Power, signal, and control wiring. Include the following:

a. Identify terminals to facilitate installation, operation, and maintenance.

b. Single-line diagram showing interconnection of components.

c. Cabling diagram showing cable routing.

C. Installer Qualifications: Manufacturer's authorized representative who is trained and approved for installation of units required for this Project.

1. Maintenance Proximity: Not more than four hours' normal travel time from Installer's place of business to Project site.

D. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.

E. Comply with NFPA 70.

F. Comply with UL 50.

G. The contractor shall be an established communications contractor that has had and currently maintains a locally run and operated business for at least five (5) years. The contractor shall utilize a duly authorized distributor of the equipment being modified for each project

All Specifications are Subject to Change 3 location. The contractor shall show satisfactory evidence, upon request, that the supplies maintains a fully equipped service organization capable of furnishing adequate inspection and service to the system being added. Rauland systems may only be modified by certified Rauland dealers. Dukane systems may only be modified by certified Dukane dealers.

Telecor systems may only be modified by Telecor dealers.

1.3 COORDINATION

Coordinate with building functions and class schedules will be required. Any work done after start of school will generally require to be done after school hours.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

Manufacturers: Subject to compliance with requirements, provide products from the manufacturers specified.

2.2 SUPPLIER AND SYSTEM INTEGRATOR:

A. Dealers certified in the systems being modified. See attached list of schools and their respective Public Address systems.

2.3 PUBLIC ADDRESS SYSTEM CONSOLE/EQUIPMENT

1. For each room indicated on the attached drawings provide the following:

a. RDL TXPCR1 Page Control Relay

b. RDL PS24AS Power Supply. Remote mount in nearest IDF. Extend power cable to required locations. Label “PA Strobe Alert Power Supply”..

c. Hoffmann or equivalent 6” X 6” X 3” enclosure mounted at owner approved height and location.

d. Wheelock RSSA24MCAWL Amber Strobe

e. Wheelock SHBBW Surface Box mounted to enclosure cover.

f. Wiremold V500 or V700 raceway as required. No exposed cables will be permitted.

g. Miscellaneous cables, connectors, and materials as required.

2. Provide any required programming or troubleshooting of existing equipment as required.

3.4. WARRANTY

1. The manufacturer shall provide a one year warranty against defects in material and workmanship. All materials shall be provided at no expense to the owner during normal working hours. The warranty period shall begin on the date of acceptance by the owner/engineer.

3.5 CONDUCTORS AND CABLES

A. Provide West Penn WPC25292 or equivalent for extension of PA signals from in-room speaker to strobe device. Lift equipment may be required at some locations.

B. Provide West Penn 25226 or equivalent for extension of power cabling from nearest IDF.

All Specifications are Subject to Change 4

C. Plenum Cable: Listed and labeled for plenum use.

D. Coordinate use of existing wiring with new equipment. Verify interoperability.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Installation height may vary by room. Verify locations and heights with owner’s representative prior to commencement of installation.

B. Wiring Method: Install wiring in raceways except within consoles, cabinets, desks, and counters and except in accessible ceiling spaces and in gypsum-board partitions where cable wiring method may be used. Use plenum cable in environmental air spaces, including plenum ceilings. Conceal cables and raceways except in unfinished spaces.

C. Install exposed cables parallel and perpendicular to surfaces or exposed structural members, and follow surface contours. Secure and support cables by J- hooks or similar fittings designed and installed to avoid damage to cables. Secure cables at intervals not exceeding 30 inches and not more than 6 inches from cabinets, boxes, or fittings.

D. Wiring within Enclosures: Bundle, lace, and train conductors to terminal points with no excess.

Use lacing bars in cabinets.

E. Control-Circuit Wiring: Install number and size of conductors as recommended by system manufacturer for control functions indicated.

F. Separation of Wires: Separate speaker-microphone, line-level, speaker-level, and power wiring runs. Install in separate raceways or, where exposed or in same enclosure, separate conductors at least 12 inches for speaker microphones and adjacent parallel power and telephone wiring. Separate other school intercom and program equipment conductors as recommended by equipment manufacturer.

G. Splices, Taps, and Terminations: Arrange on numbered terminal strips in junction, pull, and outlet boxes; terminal cabinets; and equipment enclosures.

H. Match input and output impedances and signal levels at signal interfaces. Provide matching networks where required.

I. Provide installation of all equipment specified, including all miscellaneous parts and labor for a complete, fully functioning system.

3.2 GROUNDING

A. Ground cable shields and equipment to eliminate shock hazard and to minimize ground loops, common-mode returns, noise pickup, cross talk, and other impairments.

B. Signal Ground Terminal: Locate at main equipment cabinet. Isolate from power system and equipment grounding.