共 2 条
- [1] dc POWER SUPPLIES TO TELECOMMUNICATION EQUIPMENT: DISTRIBUTION, EARTHING AND PROTECTION AGAINST INDUCED TRANSIENT VOLTAGES - 1. PAST AND PRESENT METHODS. Post Office Electrical Engineers Journal, 1979, 72 (pt 3): : 175 - 179
- [2] DC POWER-SUPPLIES TO TELECOMMUNICATIONS EQUIPMENT - DISTRIBUTION, EARTHING AND PROTECTION AGAINST INDUCED TRANSIENT VOLTAGES .2. NEW METHOD POST OFFICE ELECTRICAL ENGINEERS JOURNAL, 1980, 72 (JAN): : 247 - 250