IS 4804 : Part 2 : 1968 : Resistance Welding Equipment - Part II : Single-Phase Rocker-arm Spot Welding Machines
UDC 621.791.763.1.03 | ETD 21 |
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Reaffirmed 2020 |
1. SCOPE
1.1 This standard (Part II) covers the essential electrical and mechanical features pertaining to standard sizes of stationary single-phase ac transformer type rocker-arm spot welding machines. It does not include electrical, electronic control equipment.
1.2 This standard does not cover portable, fixture type or gun type rocker-arm resistance welding machines.