POWER SUPPLY AND SEWAGE LINEAR OBJECTS |
244 |
3.4.5.1 . General provisions |
244 |
3.4.5.2 . Design , tracing and control of electric power lines . GIS of the electric | |
power transmission network . Documentation |
245 |
1 . General provisions and requirements in the design of electric power lines |
245 |
2 . Geodetic base and methods of design |
247 |
3 . Graphic design |
248 |
3.1 . Design of the alignment in situation |
248 |
3.2 . Design of the longitudinal profile of the electric power line |
250 |
4 . Digital design |
253 |
4.1 . General on digital design and software |
253 |
4.2 . Specific software for design of aerial electric power lines |
254 |
4.2.1 . ELECTRA |
254 |
4.2.2 . Other software |
256 |
5 . Tracing , marking and benchmarking of the alignment |
256 |
6 . Pillar tracing and control |
257 |
7 . Developing a map and GIS for the Bulgarian electric power transmission network | |
259 | |
7.1 . Assignment , survey and processing . Documentation |
259 |
7.1.1 . General provisions and data about NEC and the project |
259 |
7.1.2 . Current state of the electricity sector |
261 |
7.1.3 . Purpose and results |
262 |
7.1.4 . Scope pf work . Description of the project |
262 |
7.1.5 . Implementation of the GIS contract |
263 |
7.1.5.1 . Activities |
263 |
7.1.5.2 . Results |
264 |
7.2 . ESRI GIS for the high voltage electric power transmission network |
265 |
7.3 . GIS and low voltage networks |
266 |
7.4 . Inspection of power lines |
268 |
3.4.5.3 . Design , tracing and control of communication lines and cables |
268 |
1 . Design of communication lines and cables . Required plans and | |
tracing of communication lines |
268 |
2 . Required plans and tracing of communication lines |
269 |
3 . Tracing of cable networks |
269 |
4 . Design and construction of cable electronic communication networks |
270 |
4.1 . General on networks and their elements |
270 |
4.2 . Regulations |
271 |
4.3 . Content of the investment project |
271 |
4.4 . Construction of cable systems |
271 |
4.4.1 . Methods |
271 |
4.4.2 . Tracing |
272 |
4.5 . Placement of optic cables |
272 |
4.5.1 . Requirements for the optic cable |
272 |
4.5.2 . Underground installation of cables |
272 |
4.5.3 . Placement of cables |
273 |
4.6 . Marking of the placed cable |
273 |
3.4.5.4 . Design , tracing , control and documentation of axes of pipelines for electric | |
power supply , water supply and sewage |
274 |
1 . General provisions and geodetic activities |
274 |
2 . Design of the main pipelines |
275 |