Standard: 1557 BULLETIN

UL STANDARD FOR SAFETY ELECTRICALLY ISOLATED SEMICONDUCTOR DEVICES

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Scope:

These requirements cover semiconductor devices that incorporate sensing type thermistor devices and include the optional marking as in SA5.1. The semiconductor device shall comply with the requirements in Sections 6 – 16, inclusive supplemented by and in some cases amended by the requirements in this Supplement.

Organization: UL
Document Number: 1557 bulletin
Publish Date: 2014-08-29
Page Count: 6
Change Type: BULL
Available Languages: EN
DOD Adopted: NO
ANSI Approved: NO
Most Recent Revision: YES
Current Version: YES
Status: Active

Document History

Document # Change Type Update Date Revision Status
1557 BULLETIN Change Type: STCH Update Date: 2014-06-25 Status: ACTV
1557 BULLETIN Change Type: STCH Update Date: 2012-06-22 Status: ACTV
1557 BULLETIN Change Type: Update Date: 2011-11-04 Status: INAC
1557 BULLETIN Change Type: Update Date: 2009-06-12 Status: INAC
1557 BULLETINS Change Type: Update Date: 2006-01-01 Status: INAC

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