| 摘要 | 第5-6页 |
| Abstract | 第6页 |
| TABLE OF CONTENTS | 第7-9页 |
| Chap 1. Introduction | 第9-14页 |
| 1.1 Aims and objectives of the research | 第9页 |
| 1.2 Justification for and introduction to the research | 第9-12页 |
| 1.3 Organization of the Thesis | 第12-14页 |
| Chap 2. Rwanda power system status and upgrading transmission line | 第14-28页 |
| 2.1 Present and planned electrical power systems in Rwanda | 第14-21页 |
| 2.1.1 Short history of EWSA | 第14-15页 |
| 2.1.2 Electricity generation | 第15-18页 |
| 2.1.3 Electricity transmission and distribution network | 第18-19页 |
| 2.1.4 Medium and low voltage distribution network | 第19-21页 |
| 2.2 Upgrading transmission line overview | 第21-28页 |
| 2.2.1 Needy for upgrading transmission line | 第21-25页 |
| 2.2.2 Alternatives for upgrading transmission line | 第25-28页 |
| Chap 3. Methodology for calculating electric field strength,corona loss,andible noise andradio interference | 第28-38页 |
| 3.1 Electric field at the surface of the conductor | 第29-33页 |
| 3.2 Electric fields at the ground level(1m above ground) | 第33-34页 |
| 3.3 corona loss | 第34-36页 |
| 3.4 Audible noise(AN) | 第36-37页 |
| 3.5 Radio interference(RI) | 第37-38页 |
| Chap 4. Determination of Electric field strength for Rwanda electric Transmission System | 第38-46页 |
| 4.1 Determination of electric field on the surface of the conductor | 第38-39页 |
| 4.2 Determination of ground level electric field strength | 第39-45页 |
| 4.3 Comparing obtained value with the limitations by standards | 第45-46页 |
| Chap 5. Determination of corona loss,audible noise and radio interference for RwandaElectric Transmission System | 第46-63页 |
| 5.1 Determination of corona loss | 第46-47页 |
| 5.2 Determination of audible noise | 第47-53页 |
| 5.3 Determination of radio interference | 第53-62页 |
| 5.4 Comparing obtained value with the limitations by standards | 第62-63页 |
| Chap 6. Conclusion and future work | 第63-64页 |
| 6.1 Summary | 第63页 |
| 6.2 Future work | 第63-64页 |
| References | 第64-67页 |
| Acknowledgements | 第67页 |
