International Standards and Conformity Assessment for all electrical, electronic and related technologies

SC 37B

Components for low-voltage surge protection

 
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SC 37B Working Documents since 2018-07-23

Reference, Title
Downloads

Circulation

Date

Closing

Date

CENELEC

Voting /

Comment

Of interest to

Committees

37B/185/RVN

Result of Voting on 37B/183/NP - PNW 37B-183 ED1: Components for low-voltage surge protection – Part 332: Selection and application principles for metal oxide varistors (MOV)

2019-07-19 U
SC 37A
TC 40
TC 108
37B/183/NP

PNW 37B-183 ED1: Components for low-voltage surge protection – Part 332: Selection and application principles for metal oxide varistors (MOV)

2019-03-15 2019-06-07 U Voting Result
SC 37A
TC 40
TC 108
37B/184/INF

Compilation of comments on 37B/178/DC - Draft of Preliminary Work Item PWI 37B-07 Ed.1 “Components for Low- Voltage Surge Protection – Part 332: Selection and application principles for metal oxide varistors (MOV)”

2019-03-15 N/A
37B/182/CD

IEC 61643-322 ED1: Components for low-voltage surge protective devices – Part 322: Selection and application principles for silicon PN-junction voltage limiters

2019-02-08 2019-05-03 Y Report of Comments
SC 37A
TC 40
TC 108
37B/181/RVN

Result of Voting on 37B/172/NP - PNW 37B-172 ED1: IEC 61643-322/Ed1 - Selection and application principles for silicon PN-junction voltage limiters

2019-01-11 Y
SC 37A
TC 40
TC 108
37B/179/CDV

IEC 61643-331 ED3: Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

2018-12-14 2019-03-08 Y Voting Result
SC 37A
TC 40
TC 108
37B/180/CD

IEC 61643-321 ED2: Components for low-voltage surge protective devices - Part 321: Performance requirements and test circuits for silicon PN-junction voltage limiters

2018-10-26 2019-01-18 Y Report of Comments
SC 37A
TC 40
37B/171/CDV

IEC 61643-341 ED2: Components for low-voltage surge protection -Part 341: Performance requirements and test circuits for thyristor surge suppressors (TSS)

2018-10-12 2019-01-04 Y Voting Result
SC 37A
TC 64
TC 81
37B/176/RQ

Result of 37B/169/Q, Questionnaire to approve maintenance on IEC 61643-331, Ed 3.0

2018-09-07 N/A
37B/177/RR

Review report on IEC 61643-311/Ed2: Components for low-voltage surge protective devices - Part 331: Performance requirements and test methods for metal oxide varistors (MOV)

2018-09-07 Y
SC 37A
TC 40
TC 108
37B/178/DC

Call for comments on the draft of Preliminary Work Item PWI 37B-07 Ed.1 “Components for Low-Voltage Surge Protection – Part 332: Selection and application principles for metal oxide varistors (MOV)”

2018-09-07 2018-10-26 N/A Report of Comments
37B/172/NP

PNW 37B-172 ED1: IEC 61643-322/Ed1 - Selection and application principles for silicon PN-junction voltage limiters

2018-08-31 2018-11-23 Y Voting Result
SC 37A
TC 40
TC 108
37B/173/RR

Review report on IEC 61643-311/Ed2: Components for low-voltage surge protective devices - Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)

2018-08-31 Y
TC 37
SC 37A
TC 81
37B/174/RR

Review report on IEC 61643-312/Ed1: Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes

2018-08-31 Y
TC 37
SC 37A
TC 81
37B/175/RR

Review report on IEC 61643-321/Ed1: Components for low-voltage surge protective devices - Part 321: Specifications for avalanche breakdown diode (ABD)

2018-08-31 Y
SC 37A
TC 40