Attachment 1: Specifications - Metropolitan Washington Airports ...

DCA TERMINAL A IMPROVEMENTS (NEAR TERM) 10 AUGUST 2012
TASK ORDER 03: LOBBY IMPROVEMENTS – PKG 4 - CURBSIDE CHECK-IN
RONALD REAGAN WASHINGTON NATIONAL AIRPORT
PROJECT DT1203
SECTION 27 05 26 – GROUNDING AND BONDING FOR COMMUNICATION SYSTEMS
PART 1 - GENERAL
1.1 SUMMARY
A. Communication equipment power system grounding.
B. Communication system grounding.
C. Electrical equipment and raceway grounding and bonding.
1.2 RELATED SECTIONS
A. Division 26 – Applicable Electrical Sections.
B. Division 27 – Communications and Electronic Systems Sections.
C. Division 28 – Electronic Safety and Security.
1.3 REFERENCE STANDARDS
A. Comply with the requirements of the reference standards noted herein, except where more stringent
requirements are listed herein or otherwise required by the Contract Documents.
B. NFPA Compliance: NFPA 70 “National Electrical Code (NEC).”
C. UL Compliance: Applicable requirements of UL Standards Nos. 467 “Electrical Grounding and
Bonding Equipment,” and 869, “Electrical Service Equipment,” pertaining to grounding and
bonding of systems, circuits and equipment. In addition, require compliance with UL Std. 486A,
“Wire Connectors.” Grounding and bonding products are to be UL listed and labeled for their
intended usage.
D. IEEE Compliance: Applicable requirements and recommended installation practices of IEEE
Standards 80, 81, 141 and 142 pertaining to grounding and bonding of systems, circuits and
equipment.
1.4 SYSTEM DESCRIPTION
A. Ground each separately derived electrical source, including transformers, UPS’s and PDU
associated with the Division 27 and 28 sections with a system neutral per the Drawings and as
required by the NEC. Refer to the electrical specifications. Where applicable, building steel shall be
included in the bonding, per the Drawings.
GROUNDING AND BONDING FOR COMMUNICATION SYSTEMS 27 05 26 - 1