IS 7931 Pt.1-1975
Specification for self-regulating arc (MIG/MAG process) automatic and semi-automatic welding equipment Part Ⅰ DC welding power source

Standard No.

IS 7931 Pt.1-1975

Release Date

1976

Published By

IN-BIS

Latest

IS 7931 Pt.1-1975

Scope

1.1 This standard (Part I ) lays down the requirements, tests and service conditions for dc arc welding generator power source having a substantially flat load characteristic for semi-automatic and automatic arc welding with self-adjusting arcs ( MIG/MAG processes ). 1.2 The windings of generator covered by this standard are of insulation classes A, E, B, F and H. 1.3 Welding generators covered by this standard are assigned ratings on the basis of duty cycle.

IS 7931 Pt.1-1975 history

• 1976 IS 7931 Pt.1-1975 Specification for self-regulating arc (MIG/MAG process) automatic and semi-automatic welding equipment Part Ⅰ DC welding power source