PISCATAWAY,
N.J., USA, 9 January 2007 The IEEE has approved an amendment to a rail transportation
standard for low-voltage, circuit breaker switchgear. It has also begun work on
a new communications-based train control standard and revised a standard on environmental
conditions as applied to transit rail car electronics.
The IEEE has approved
IEEE C37.20.1b(TM), “Standard for Metal-Enclosed Low-Voltage Power Circuit
Breaker Switchgear - Amendment 2: Additional Requirements for Control and Auxiliary
Power Wiring in DC Traction Power Switchgear”. This amendment provides additional
auxiliary power and control wiring requirements for dc traction power substations
having a nominal output of up to 3200 volts dc. It is intended to improve the
performance and reliability of dc traction power switchgear and reduce both initial
costs and maintenance costs.
IEEE has begun work on a new standard, IEEE
P1474.3(TM), “Communications-Based Train Control (CBTC) System Design and
Functional Allocations”, which will define a preferred CBTC system design
and architecture to meet the CBTC performance and functional requirements in IEEE
1474.1(TM). It also will allocate functions to major CBTC subsystems.
IEEE
has begun to revise IEEE P1478(TM), “Standard for Environmental Conditions
for Transit Rail Car Electronic Equipment”, to address specific technical
issues. This standard considers the environmental conditions under which transit
rail car electronic equipment should operate and survive. These conditions depend
on equipment location, such as under car, interior and truck, and include temperature,
humidity, water, corrosive elements, vibration and shock. IEEE P1478 sets a baseline
for contract specifications and the design and manufacture of electronic equipment
for transit rail cars.
The IEEE has reaffirmed the continued use of IEEE
11(TM), “IEEE Standard for Rotating Electric Machinery for Rail and Road
Vehicles”.
About the IEEE Standards Association
The IEEE Standards Association, a globally recognized standards-setting body,
develops consensus standards through an open process that brings diverse parts
of an industry together. These standards set specifications and procedures based
on current scientific consensus. The IEEE-SA has a portfolio of more than 870
completed standards and more than 400 standards in development. For information
on IEEE-SA see: http://standards.ieee.org/.
About the IEEE The IEEE has more than 375,000 members in approximately
150 countries. Through its members, the organization is a leading authority on
areas ranging from aerospace, computers and telecommunications to biomedicine,
electric power and consumer electronics. The IEEE produces nearly 30 percent of
the world's literature in the electrical and electronics engineering, computing
and control technology fields. This nonprofit organization also sponsors or cosponsors
more than 300 technical conferences each year. Additional information about the
IEEE can be found at http://www.ieee.org/.
