Tangent Galvonometer

The history of the 60950 standards sets

And a bit of the future.
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International Electrotechnical Commission
Standard Version Subject Issued Effective Expires Comments
IEC 950 1st Ed ITE 1986 1986 N/A Obsolete
IEC 950 1st Ed 1st Amd ITE Nov 88 Nov 88 N/A Obsolete
IEC 950 1st Ed 2nd Amd ITE Jun 90 Jun 90 N/A Obsolete
IEC 950 2nd Ed ITE Sep 91 Sep 91 N/A Obsolete
IEC 950 2nd Ed 1st Amd ITE Feb 92 Feb 92 N/A Obsolete
IEC 950 2nd Ed 2nd Amd ITE Jun 93 Jun 93 N/A Obsolete
IEC 950 2nd Ed 3rd Amd ITE Jan 95 Jan 95 N/A Obsolete
IEC 950 2nd Ed 4th Amd ITE Jul 96 Jul 96 N/A Obsolete
IEC 60950 3rd Ed ITE Apr 99 Apr 99 N/A Obsolete
IEC 60950-1 1st Ed ITE Oct 01 Oct 01 N/A Obsolete
IEC 60950-1 2nd Ed ITE Dec 05 Dec 05 Current
IEC 60950-21 1st Ed Remote feed Dec 02 Dec 02 Current Supplement to 60950-1
IEC 60950-22 1st Ed Outdoor Oct 05 Oct 05 Current Supplement to 60950-1
IEC 60950-23 1st Ed LargeEquip Sep 05 Sep 05 Current Supplement to 60950-1
IEC 62368 1st Ed HBSDT Jan 10 Jan 10 Current Hazard based replacement
for 60950 and 60065

CENELEC (European Union and EFTA)
dor - date of ratification by CENELEC; dop - latest date of publication (adoption) by member countries
Standard Version Subject dor dop Expires Comments
EN 60950 1988 ITE 1 Jan 88 1 Sep 88 1 Sep 96 Obsolete
EN 60950 A1:1990 ITE 5 Mar 90 1 Mar 91 1 Jun 97 Obsolete
EN 60950 A2:1991 ITE 25 Jun 91 1 Jun 92 1 Mar 00 Obsolete
EN 60950 1992 ITE 16 Jun 92 1 Mar 95 1 Mar 00 Obsolete
EN 60950 A1:1992 ITE 9 Dec 92 1 Sep 93 1 Mar 00 Obsolete
EN 60950 A2:1993 ITE 6 Jul 93 1 Mar 94 1 Mar 00 Obsolete
EN 60950 A3:1995 ITE 6 Dec 94 1 Jan 96 1 Jan 02 Obsolete
EN 60950 A4:1996 ITE 9 Dec 96 1 Aug 97 1 Aug 03 Obsolete
EN 60950 A11:1997 ITE 1 Jul 97 1 Feb 98 1 Aug 03 ref to EN60825
EN 60950 2000 ITE 1 Jan 00 1 Jan 01 1 Jul 06 Acceptable
EN 60950-1 1st Ed 2001 ITE 1 Dec 01 1 Mar 02 1 Dec 10 Current
EN 60950-1 2nd Ed 2006 ITE 1 Dec 05 1 Jun 06 Current

Underwriters Laboratories
new = new designs, old = current production without major changes
Standard Version Subject Issued Expire-new Expire-old Comments
UL 114 Office 1 Apr 00 no expiration
for unmodified
products
unless notified
by UL
Restricted
UL 1459 Telecom 1 Apr 00 Restricted
UL 478 4th Ed Computer 1 Apr 00 Restricted
UL 478 5th Ed Computer 1 Apr 92 Restricted
UL 1950 1st Ed ITE 1 Mar 89 1 Apr 00 IEC 950 1st Ed
UL 1950 2nd Ed ITE 26 Feb 93 1 Apr 00 IEC 950 2nd Ed
UL 1950 3rd Ed ITE 28 Jul 95 1 Jul 06 IEC 950 2nd Ed 3rd Amd
UL 60950 3rd Ed ITE 1 Dec 00 1 Jul 06 IEC 950 3rd Ed
UL 60950-1 1st Ed ITE 1 Apr 03 current IEC 60950-1

Canadian Standards Association
new = new designs, old = current production without major changes
Standard
CAN/CSA-
C22.2 No.
Version Subject Issued Expire-new Expire-old Comments
143 1975 Office 30 Sep 93 Obsolete
154 M83 Computer 30 Sep 93 Obsolete
220 M91 ITE 30 Sep 93 30 Sep 99 Obsolete
225 M90 Telecom 1 Apr 00 1 Apr 05 Restricted
950 M89 ITE 1 Apr 00 1 Apr 05 IEC 950 1st Ed
950 93 ITE 1 Apr 00 1 Apr 05 IEC 950 2nd Ed
950 95 ITE 28 Jul 95 1 Apr 03 1 Apr 05 IEC 950 2nd Ed 3rd Amd
60950 00 ITE 1 Dec 00 1 Jul 06 IEC 950 3rd Ed
60950-1-03 02 ITE 1 Apr 03 current IEC 60950-1

Australian Standards Association
new = new designs, old = current production without major changes
Standard
AS/NZS
Version Subject Issued Expire Comments
3260 1988 ITE 1988 5 Jun 2003 IEC 950 1st Ed
3260 1993 ITE 15 Feb 93 5 Jun 2003 IEC 950 2nd Ed
60950 2000 ITE 5 Jun 00 1 Jul 06 IEC 60950 3rd Ed
60950.1: 2003 ITE 15 Sep 03 current IEC 60950-1
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