Design and Construction Handbook - Los Angeles World Airports

Guide Specification
f. National Fire Protection Association - NFPA
g. American Society for Testing and Materials - ASTM
h. American National Standards Institute - ANSI
i. American Standard Association - ASA
j. National Electrical Code - NEC, as modified by the city of Los Angeles
k. Insulated Power Cable Designers Association - IPCEA
l. California Code of Regulations, Title 24
m. International Electrical Testing Association - NETA
C. The term "Code", when used within the specifications.
D. Seismic Design of Electrical Equipment:
1. All electrical prefabricated equipment is to be designed and constructed in such a
manner that all portions, elements, sub assemblies and/or parts of said equipment
and the equipment as a whole, including their attachments, will resist a horizontal
load equal to the operating weights of those parts multiplied times the following
factors:
Type of equipment Horizontal
cp
Rigid and rigidly supported piping or equipment
such as boilers, chillers, pumps, motors,
transformers, unit substations and control panels.
Flexible and flexibly supported equipment such as
air-handling units, piping and other equipment so
supported that the fundamental period of vibration
of the equipment and its supporting system is
greater than 0.05 seconds. Communication
equipment and emergency stand-by equipment
Vertical
cp
2. Load is to be applied at the center of gravity of the part and to be in any direction
horizontally.
3. Design stresses shall be in accordance with the specifications for design of the
American Institute of Steel Construction. Anchorage, support and/or attachment
of said prefabricated equipment to the structure should be in accordance with the
details found in the plans and specifications.
4. Seismic restraints shall be designed for a 1.5 importance factor, and stamped
structural calculations, signed by a California Registered Structural Engineer,
will be provided as support.
5. It is the entire responsibility of the Contractor to verify the design of equipment
so that the strength and anchorage of the internal components of the equipment
exceeds the force level used to restrain and anchor the unit itself to the supporting
structure.
6. If the state of California requires that certain electrical equipment and
components have a special seismic certification, the contractor and vendor shall
provide such certification.
BASIC ELECTRICAL REQUIREMENTS
26 05 02 - 2 Electrical Systems
0.50
1.00
0.33
0.6