... 102 and 103.Upre-stress: pre-stress voltage.Upd-test: test voltage for PD measurement.Upd-test, ph-ea: test voltage for PD measurement, phase-to-earth.Upd-test, ph-ph: test voltage for ... applicablea) for type tests, phase-to-earth and between phases;b) for routine tests, phase-to-earth, phase-to-phase, and across the open switching device.Values in columns (3), (4) and (5) are ... `,,,,``,`,`,`,,`,`,,,,,,,, `-` -` ,,`,,`,`,,` 6227 1-2 03 IEC: 2003 – 9 –INTERNATIONAL ELECTROTECHNICAL COMMISSION____________HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –Part 203: Gas-insulated metal-enclosed switchgear for...