Standards and Practices - Structural Integrity of Offshore Wind Turbines - page 36

BOX 3-1 (continued)
Regulations, Standards, and Guidelines
final. Examples of standards referred to in this report are IEC
61400-3 and API RP 2A.
Guidelines. A guideline is a document that has been developed
by a group or a company and that is not subject to a formal pro-
tocol or a vote of constituencies. These documents are typically
vetted through an internal quality process and may be peer
reviewed, but they are ultimately the product of the group or
company, and no consensus is required for their completion or
use. In this report, “guideline” refers to any document devel-
oped by a group or company for which no recognized protocol
or consensus vote is necessary. Examples of guidelines referred
to in this report are Guideline for the Certification of Offshore
Wind Turbines, developed by Germanischer Lloyd; Design of
Offshore Wind Turbine Structures, developed by Det Norske
Veritas; and Guide for Building and Classing Offshore Wind Tur-
bine Installations, developed by the American Bureau of Ship-
ping (ABS 2010).
extreme operating wind gust and loss of the electrical network. Other
examples require consideration of yaw misalignment that might result
from mechanical or electrical failure and consideration of what emergency
procedures might be needed to cope with structural damage caused by
nonstructural triggers such as overspeeding, brake failures, and lubrication
defects.
In sum, the standards and guidelines that will likely be used in the
structural design of offshore wind turbines for the United States and that
will inform the work of certified verification agents (CVAs) consider
how nonstructural components can trigger structural failures in offshore
wind turbines.