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SPECIFICATIONS (CONTINUED)

6. Retesting – Re-certify deficiencies indicated by tests and completely retest work affected by such

deficiencies at vendor's expense. Verify by the system test that the total system meets the

Specifications and complies with applicable standards.

Quality Assurance

1. Installer Qualifications: Engage an experienced installer who is a factory authorized service

representative to perform the work in this section.

2. Electrical Component Standard: Components and installation shall comply with NFPA 70, "National

Electric Code."

3. Electronics Industries Association (EIA) Compliance: Comply with the Electronics Industries

Association standards.

4. Compliance with Local Requirements: Comply with the applicable building code, state and local

ordinances, and regulations and the requirements of the authority having jurisdiction.

PRODUCTS

General

1. Acceptable manufacturers – See individual sections

2. NFPA Compliance: Provide systems conforming to the requirements of the NFPA 101, "Life

Safety."

3. UL Listing and Labeling: Provide components specified in the individual sections that are listed and

labeled by UL/UR.

4. Nationally Recognized Testing Laboratory Listing and Labeling (NRTL): Provide system and

components specified that are listed and labeled by an NRTL. The term "NRTL" shall be defined in

OSHA Regulation 1910.7.

5. Single Source Responsibility: Obtain components from a single source vendor who assumes

responsibility for compatibility for system components furnished and provides complete turn-key

installation to maintain the Single Source Responsibility format.

Product Models

If any product model numbers in this specification cease to exist, go out of production, or are unobtainable

then the latest and greatest model from that manufacturer should be purchased at no extra expense to Harris

County.

Transient Surge Protection

Transient surge protection is required for all systems/sections of the Security Electronics Division.

1. All Transient Surge Protection (TSP) devices installed shall utilize Silicon Avalanche Diodes (SAD)

as the primary means of protection. Secondary protection shall be SAD or MOVs. Each protection

circuit shall be independent of each other and neither circuit shall short to ground on clamping

transient surges.

2. Each 120VAC circuit or feeder shall be provided with a TSP device.

3. Each metallic conductor(s) entering or leaving the building shall be provided with a TSP device.

4. Each TSP device shall be provided with a ground connection.

5. Alarm contacts on each TSP device shall be wired as inputs to the security system to annunciate as

trouble alarms.

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