DIN EN ISO 17657-3:2007 电阻焊.电阻焊用焊接电流测量.第3部分:电流感应线圈(ISO 17657-3:2005)
Resistance welding - Welding current measurement for resistance welding - Part 3: Current sensing coil (ISO 17657-3:2005); English version of DIN EN ISO 17657-3:2007-09
This part of ISO 17657 specifies current sensing coils of the toroidal-coil type as a current sensor for welding current meters or a welding current measuring system sued to monitor the welding current in resistance welding,and is applicable for both current types,i.e. alternating current of 50Hz and direct current.