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Project

Reference EN 61788-18:2013
Title Superconductivity - Part 18: Mechanical properties measurement - Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors
Project Number 24188
Abstract/Scope IEC 61788-18:2013 specifies a test method detailing the tensile test procedures to be carried out on Ag/Bi-2223 and Ag/Bi-2212 superconductive composite wires at room temperature. This test is used to measure the modulus of elasticity and to determine the 0,2 % proof strength. When the 0,2 % proof strength could not be determined due to earlier failure, the stress level at apparent strains of 0,05 %, 0,1 %, 0,15 %, 0,2 %, 0,25 % with increment of 0,05 % is measured. The values for elastic limit, fracture strength, percentage elongation after fracture and the fitted type of 0,2 % proof strength serve only as a reference. The sample covered by this test procedure should have a round or rectangular cross-section with an area of 0,3 mm2 to 2,0 mm2 (corresponding to the tape-shaped wires with width of 2,0 mm to 5,0 mm and thickness of 0,16 mm to 0,4 mm). Key words: superconductivity, mechanical properties measurement
Status
Published

Status

Current Stage code 6060
Current Stage code date 2013-12-13
Current Stage code deadline 2014-07-17
Deadline date for vote  

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Details

IEC Technical Body IEC/TC 90
Reference Document IEC 61788-18:2013 (EQV)
ICS 29.050 - Conducting materials
Keywords Superconductivity; Mechanical; Temperature; Bi-2223; Bi-2212
Note 20130930: Publication allocated to aclausse@cencenelec.eu
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History

Stage
Date
Deadline Date
Documents
6060 2013-12-13 2014-07-17 export to doc file  EN  FR  DE
5099 2013-10-17 2013-11-14  
5060 2013-08-05 2013-08-26 export to doc file  EN
5020 2013-05-31 2013-08-02  
3090 2013-05-28 2013-05-31  
5060 2012-10-08 2012-10-29 export to doc file  EN
5020 2012-05-04 2012-10-05  
1090 2012-05-01 2012-05-04  

Implementation Dates

date of Ratification (DOR) (1) 2013-10-17
date of Availability (DAV) (2) 2013-12-13
date of Announcement (DOA) (3) 2014-01-17
date of Publication (DOP) (4) 2014-07-17
date of Withdrawal (DOW) (5) 2016-10-17

Relations

Supersedes  
Superseded by  
Normative reference (6) ISO 376
ISO 6892-1
ISO 7500-1
ISO 9513
IEC 60050 series

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved


(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat


(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level


(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement


(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn


(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.