Complete Compiled Specification.pdf - Peck Ormsby Construction

SECTION 16478 – TRANSIENT VOLTAGE SURGE SUPPRESSORS
PART 1 - GENERAL
1.1 WORK INCLUDED:
A. Furnish all labor, materials, equipment and services necessary for and incidental to the
installation of the Transient Voltage Surge Suppression (TVSS) System components at
locations shown on the plans.
1.2 QUALITY ASSURANCE:
A. The TVSS shall be UL Listed as a Transient Voltage Surge Suppressor, category C, UL 1449
Second Edition (including Sections 34 and 37.3, effective February 7, 2007). All UL 1449 test
data shall be provided with submittal.
B. The TVSS shall bear suppressed voltage rating issued by UL, and the units shall be tested in
accordance with ANSI/IEEE C62.41-1991, Category C, 20kV/10kA, 8x20 uS and 1.2x50 uS
Combination Waveform and .5uS - 100kHz Ring Wave with a minimum of 10 sequential
impulses delivered directly into the TVSS at a maximum of sixty second intervals for each
waveform.
C. Manufacturers Qualifications: Only firms regularly engaged in the manufacture of TVSS
products for category C (ANSI/IEEE C62.41), and whose products have been providing
satisfactory service for not less than five years, shall be considered. Manufacturer
qualifications shall be provided as part of the submittal.
D. The TVSS must be capable of surviving 1000 sequential surges without failure, using IEEE
test procedures established in C62.45.
E. The TVSS device must have MOV surge devices, installed with full rating indicated between
Phase to Neutral, Phase to Ground, and Neutral to Ground, and be capable of handling a
minimum surge current as follows:
Distribution and/or service panels:
Per Mode:
Branch panels:
Line to Neutral 150,000 amps
Line to Ground 150,000 amps
Neutral to Ground 150,000 amps
Per Phase: 300,000 amps
Per Mode:
Line to Neutral 40,000 amps
SEGO LILY ELEMENTARY SCHOOL CLASSROOM ADDITION March 2, 2009
TRANSIENT VOLTAGE SURGE SUPPRESSORS 16478-1