NS EN ISO 7284 : 1ED 1996
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
RESISTANCE WELDING EQUIPMENT - PARTICULAR SPECIFICATIONS APPLICABLE TO TRANSFORMERS WITH TWO SEPARATE SECONDARY WINDINGS FOR MULTI-SPOT WELDING AS USED IN THE AUTOMOBILE INDUSTRY
11-30-2010
01-12-2013
Committees responsible
National foreword
Foreword
1 Scope
2 Normative references
3 Types of transformer
4 General requirements
5 Positions of the rotary switch
6 Dimensions
7 Construction
8 Tests
9 Designation
Annex
A (normative) Cable input for the primary connection
Tables
1 Types of transformer, electrical characteristics
2 Dimensions l1, l2 and l3 as a function of the
secondary permanent current
3 Limit values of the no-load current Io
A.1 Dimensions of the conduits
Figures
1 Positions of the rotary switch
2 Dimensions and arrangement of secondary connections
3 Dimensions of the separate rotary switch (position 6)
Position of the handle
A.1 Dimensions of the plate for transformers
A.2 Dimensions of the plate for rotary switch
A.3 Dimensions of plug and socket device
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