Specifications

St. David Catholic School Manning Architects
Gym and Classroom Replacement N10.024.00
New Orleans, Louisiana July 20, 2012
PANELBOARDS 16400 -3
LIGHTING AND APPLIANCE BRANCH-CIRCUIT PANELBOARDS
Branch Overcurrent Protective Devices: Bolt-on circuit breakers, replaceable without disturbing
adjacent units.
Doors: Front mounted with concealed hinges; secured with flush latch with tumbler lock; keyed
alike.
DISTRIBUTION PANELBOARDS
Doors: Front mounted, and secured with vault-type latch with tumbler lock; keyed alike.
Branch overcurrent protective devices shall be one of the following:
(a) Bolt-on circuit breakers.
(b) Fused switches.
INTEGRATED TRANSIENT VOLTAGE SURGE SUPPRESSION DEVICES
Surge Protective Device (SPD)
1. SPD shall be Listed and Component Recognized in accordance with UL 1449 Second
Edition to include Section 37.3 highest fault current category. SPD shall be UL 1283
listed.
2. SPD shall be installed by and shipped from the electrical distribution equipment
manufacturer’s factory.
3. The TVSS devices in lighting and appliance panelboards shall be bus mounted between
the main and branch devices. TVSS devices bussed off the end of the panelboard are
not allowed. Panelboards with TVSS will accommodate thru-feed lugs and sub-feed
circuit breakers in single section and multi-section panelboards.
4. The TVSS devices in power distribution panelboards shall be cable connected.
5. SPD shall provide surge current diversion paths for all modes of protection; L-N, L-G,
N-G in WYE systems.
6. SPD shall be modular in design. Each mode including N-G shall be fused with a
200kAIR UL recognized surge rated fuse and incorporate a thermal cutout device.
TVSS shall safely reach an end-of-life condition when subjected to fault current levels
between 0 and 200 kA, including low level fault currents from 5 to 5000 amperes.
7. Audible diagnostic monitoring shall be by way of audible alarm. This alarm shall activate
upon a fault condition. An alarm on/off switch shall be provided to silence the alarm.
An alarm push to test switch shall be provided.
8. SPD shall meet or exceed the following criteria:
a. Minimum surge current capability (single pulse rated) per phase shall be:
1) Service Entrance Panelboard locations: 240kA per phase
2) Distribution and lighting and Appliance Panelboard locations: 160kA per phase
b. UL 1449 Suppression Voltage Ratings:
VOLTAGE LOCATION L-N L-G N-G