UNI EN ISO 17657-1 : 2008
Current
The latest, up-to-date edition.
RESISTANCE WELDING - WELDING CURRENT MEASUREMENT FOR RESISTANCE WELDING - PART 1: GUIDELINES FOR MEASUREMENT
14-02-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Welding current measuring system
4.1 General
4.2 Applicability
4.3 Accuracy
4.4 Welding current meter with current sensing coil
5 Current sensors
5.1 Type of sensor
5.2 Selection of current sensor
5.3 Conversion coefficient
6 Tests and calibration of the welding current measuring
systems
7 Selection of requirements and test procedures for a
welding current measuring system
Annex A (normative) Definition of weld times
Annex B (informative) Types of integrator and equivalent
current sensing coil circuits
Annex C (informative) Conversion coefficient and maximum
output voltage of current sensing
coils
Provides equipment for the calibration of measuring systems welding current and indicating weld time in resistance welding using single-phase alternating current of frequency 50 Hz or 60 Hz, or direct current.
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Standards | Relationship |
| NEN EN ISO 17657-1 : 2007 | Identical |
| NS EN ISO 17657-1 : 1ED 2007 | Identical |
| I.S. EN ISO 17657-1:2007 | Identical |
| EN ISO 17657-1:2007 | Identical |
| SN EN ISO 17657-1 : 2007 | Identical |
| ISO 17657-1:2005 | Identical |
| NBN EN ISO 17657-1 : 2007 | Identical |
| NF EN ISO 17657-1 : 2007 | Identical |
| BS EN ISO 17657-1:2007 | Identical |
| DIN EN ISO 17657-1:2007-09 | Identical |
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