IEEE Electrification Magazine - June 2016 - 9

products or approaches for their designs. In the United
States, restrictions are imposed on electrical systems by
the requirements of NEC (NFPA-70), Section 210.6,
branch-circuit voltage limitations. Briefly, this code limits
the voltage in residential and similar occupancies to
120 V (root mean square) between conductors for typical
cord-and-plug connected loads. For specific loads, the
limits are raised to 277 V among conductors. The voltage
limitations imposed by 210.6 effectively exclude the
use of dc at efficient voltage levels from the majority of applications in this country. In other countries
(e.g., Canada), there are similar restrictions from the
Canadian Electrical Code (CSA C22.1).

Corona Protection for the
Severest Environments

Lack of Products
Although the vast majority of products in the home today
use dc energy, each one containing a small (lower-efficiency) converter, not many can plug into a 380-Vdc outlet or even a 48-Vdc outlet. However, a number of groups
are working to provide widespread products, such as the
FREEDM Systems Center and EMerge Alliance.

CORONA Clear
A series of impregnating resins
that provide environmental and
electrical protection in all types
of electrical apparatus.

A superior magnet wire coating
designed for use in inverter
grade magnet wire.

For Further Reading
L. Lorenz. (2015, Nov. 17). Revenue from direct current
distribution network implementation is expected to total $33
billion from 2015 to 2024. Navigant Research. [Online]. Available:
https://www.navigantresearch.com/newsroom/revenuefrom-direct-current-distribution-network-implementation-isexpected-to-total-33-billion-from-2015-to-2024
The World Bank. (2016, Apr. 5). 2015 World Access to
Energy. [Online]. Available: http://www.worldbank.org/en/
topic/energy/overview#1
Pew Research Center. (2015, Apr. 15). Cell phones in Africa:
Communication lifeline. [Online]. Available: http://www.
pewglobal.org/2015/04/15/cell-phones-in-africa-communication-lifeline/
E. Holodny. (2014, July 9). Thomas Edison secretly
financed the first electric chair to destroy his rival. Business
Insider [Online]. Available: http://www.businessinsider.
com/edison-financed-the-electric-chair-2014-7
G. AlLee and W. Tschudi, "Edison redux: 380 Vdc brings
reliability and efficiency to sustainable data centers," IEEE
Power Energy Mag., vol. 10, no. 6, pp. 50-59, Nov.-Dec. 2012.

ELANTAS PDG Inc. * 5200 North Second Street * St. Louis, MO 63147
314-621-5700 * info.elantas.pdg@altana.com * www.elantas.com

2017-2018

IEEE-USA Government
Fellowships
Congressional Fellowships
Seeking U.S. IEEE members interested in
spending a year working for a Member of
Congress or congressional committee.

Engineering & Diplomacy Fellowship
Seeking U.S. IEEE members interested in
spending a year serving as a technical adviser
at the U.S. State Department.

USAID Fellowship

Biographies

Seeking U.S. IEEE members who are interested
in serving as advisors to the U.S. government
as a USAID Engineering & International
Development Fellow.

Ewan Pritchard (egpritch@ncsu.edu) is an applied automotive fellow and associate director of the FREEDM Systems Center, North Carolina State University, Raleigh.
Daniel C. Gregory (dan.gregory@pos-en.com) is the
chief executive officer of Pos-En, FREEDM Systems
Center, North Carolina State University, Raleigh. He
is a Member of the IEEE and the International Council on Large Electric Systems.
Srdjan Srdic (ssrdic@ncsu.edu) is a visiting assistant
professor at North Carolina State University, Raleigh.

The application deadline for 2017-2018
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For eligibility requirements and application information, go to

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IEEE Elec trific ation Magazine / j une 2 0 1 6
GovFel-Oct-2016-d1.indd 1

3/24/2016 2:21:38 PM

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http://www.elantas.com https://www.navigantresearch.com/newsroom/revenue http://www.worldbank.org/en/ http://www http://www.pewglobal.org/2015/04/15/cell-phones-in-africa-commu http://www.businessinsider http://www.ieeeusa.org/policy/govfel

Table of Contents for the Digital Edition of IEEE Electrification Magazine - June 2016

IEEE Electrification Magazine - June 2016 - Cover1
IEEE Electrification Magazine - June 2016 - Cover2
IEEE Electrification Magazine - June 2016 - 1
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IEEE Electrification Magazine - June 2016 - Cover3
IEEE Electrification Magazine - June 2016 - Cover4
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http://www.nxtbook.com/nxtbooks/pes/electrification_june2015
http://www.nxtbook.com/nxtbooks/pes/electrification_september2015
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http://www.nxtbook.com/nxtbooks/pes/electrification_june2014
http://www.nxtbook.com/nxtbooks/pes/electrification_september2014
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