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The GoTo site for
Power System Professionals Involved in Lightning Protection |
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Power System’s Protection Standards |
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Current Events in Standards -- New IEC Technical
Committee formed TC 115 Dated March 16, 2009 High
Voltage Direct Current (HVDC) Transmission for DC voltages above 100kV
(Provisional) China is the
secretariat. According to the original proposal, the primary task of
the new technical committee (TC) would cover:
The
new TC would work in cooperation with a number of existing IEC TCs, including
TC 8: Systems aspects for electrical energy supply, TC 14: Power
transformers, TC 22: Power electronic systems and equipment, TC 28:
Insulation co-ordination, TC 36: Insulators, and TC 37: Surge arresters, as
well as with relevant organizations in liaison. -- IEC 60099-4-am2 Ed. 2.0
Bilingual Feb 26, 2009 The IEC has published a new edition of 60099-4. An
overview of the additions and deletions in this document are covered in detail
in ArresterFacts
007 Understanding New IEC Mechanical Requirements. This new edition covers new mechanical test
requirements for polymer and porcelain housed arresters. The new edition can be purchased at here -- C62.11a Published Last month the IEEE
standards department published C62.11a, an amendment to C62.11. This new
amendment now specifies a short circuit test for all arresters. It has been
years in the making. What makes this
amendment so unique is that it is virtually identical to the test procedure
published in IEC 60099-4 in 2006. This is a first for arrester standards
harmonization. Though it will be many
years before the both standards are virtually the same, this is a first step. Overview
of the amendment can be found here. -- 37/345/CDV Mechanical
Considerations for Arresters March 28, 2008 This CDV is a substantial change over previous mechanical
considerations and needs review by all stakeholders in arresters applied in
the IEC markets. -- IEC 60099-5 1998 Surge Arresters: Part 5 Selection and application recommendations March 26, 2008 Maintenance Team 10 of TC37 Met on March 25th and
26th. The new convenor Bengt
Johnnerfelt (ABB) is leading the effort to have a new edition available for
publication in 2010. The significantly
enhanced edition will include new material that covers the application of
gapped arresters both internal and external.
This application guide covers arresters tested under 60099-4, 60099-6,
and the upcoming 60099-8. The first CD
for this edition is planned distribution to the National Committees in June
of 2008. -- IEEE SPD Spring Meeting
Schedule Announced March 11, 2008 The spring meeting of the IEEE Surge Protective Devices
Committee will be held May 12-15 in Clearwater Florida. The meeting specifics can be found here. The
daily schedule will be published soon. -- IEC 60099-8: Surge arresters - Part
8: Metal-oxide surge arresters with external series gap (EGLA) for overhead
transmission and distribution lines of a.c. systems above 1 kV Feb 29, 2008 37/346/CD, which is CD2 of this document, was circulated to the
national committees on Feb. 29, 2008.
The closing date is May 30, but all National committees are being
asked to submit comments by May 16th. -- IEEE 1410 D1 Draft Guide for Improving
the Lightning Performance of Electric Power Overhead Distribution Lines Jan 4, 2008 Working Group Chair John McDaniel (National Grid) has
distributed a the first draft of the next edition of this standard for
comments. He asks that they are returned
to him as soon as possible. I am a
member of this working group so if anyone would like to discuss this with me,
let me know via email at jwoodworth@arresterworks.com -- IEC 60099-4 Ed 2.1 10-2006 Surge arresters - Part
4: Metal-oxide surge arresters without gaps for a.c. systems Dec 14, 2007 37/345/CDV Mechanical Considerations for Arresters Maintenance Team 4 of IEC Technical Committee 37 has
just distributed its first CDV regarding new mechanical considerations for
surge arresters relating to 60099-4.
This is a substantial change in the standard with regard to mechanical
requirements of arresters of these types.
The MT Convenor Volker Hinrichsen has requested that the comments and
votes be received by May 1st so that the May 25th meeting can be used to
finalize this change to the standard and issue the FDIS. -- |
Meetings May
2009 Clearwater
Florida IEEE
SPD and IEC MT4 and MT10 October
2009 TBA IEEE
SPD |
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