Çamlı Vadi is a residential development terraced across sloping terrain with significant level differences between blocks. Devpan produced the multi-point distribution architecture that follows the level changes, the block panels, the compensation and landscape lighting panels.
Electrical Profile of the Project
- LocationTürkiye
- Building typeResidential complex
- Installed power≈ 4,800 kVA
- Transformer configuration3 × 1,600 kVA
- Main busbar rated current2 × 2,500 A
- Short-time withstand current (Icw)65 kA / 1 s
- Devpan scopeLow voltage switchboards, engineering and site coordination
- Verification standardIEC 61439-1, IEC 61439-2
About the Project
Developments built on sloping sites pose a different problem from those on flat ground. The level difference between blocks lengthens cable routes, constrains where plant rooms can sit, and makes earthing conditions vary from point to point.
At Çamlı Vadi distribution runs through intermediate points grouped by level. Each level group is fed from its own sub-distribution board, keeping voltage drop within limits as far as the most remote block. Because water management is inseparable from a sloping site, drainage and booster pumps are collected on a separately protected branch and included in the generator supply.
Devpan Scope and Switchboard Architecture
The Devpan scope reaches from central main distribution to the level-group sub-boards and the landscape lighting circuits. Translating the topography into the distribution architecture is the starting point of the design.
- Main distribution boards (DevPanel): 2,500 A class, 65 kA / 1 s, central distribution with bus coupler arrangement.
- Level-group sub-boards (DevBox): Separately metered intermediate stage and block metering panels serving each level group.
- Pump and water management branch: Separately protected, generator-backed supply for booster and drainage pumps.
- Landscape and road lighting panels (DevPower): Terraced pathways, retaining wall and garden lighting.
- Power factor correction (DevComp): Detuned automatic stepped compensation with small steps.
Technical Configuration
| Installed power | ≈ 4,800 kVA |
|---|---|
| Transformer configuration | 3 × 1,600 kVA |
| Medium voltage level | 34.5 kV |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 2,500 A |
| Short-time withstand current (Icw) | 65 kA / 1 s |
| Form of internal separation | Form 3b – Form 4a |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 2 × 1,000 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Level difference and cable routing
On sloping ground the cable route is longer than the horizontal distance. Cross-sections are selected against that actual length; otherwise the voltage drop limit is exceeded at the most remote block.
Earthing that varies point to point
Soil resistivity changes across the site. Earth resistance is measured at every supply point and equipotential bonding is arranged to form a coherent whole across the site.
Continuity of water management loads
Booster and drainage pumps are critical loads on sloping terrain. This branch is placed on the generator-backed supply and protected separately from normal loads.
Staging of outdoor lighting
Terraced pathway and retaining wall lighting are divided into separate circuits, so a fault in one area does not darken the whole development.
Frequently Asked Questions
How is distribution planned for a residential development on sloping terrain?
Distribution is divided into level groups. An intermediate distribution point is created for each group and the blocks are fed from it. This shortens cable runs, keeps voltage drop within limits, and confines the effect of a fault to that level group.
Why can cable cross-section not be selected from the horizontal distance?
Because on sloping ground the route the cable actually follows is significantly longer than the horizontal distance between two points. If the cross-section is not calculated from the real route length, voltage drop comes out higher than calculated and equipment at the far end runs below rated voltage.
What is the installed power at Çamlı Vadi?
A residential development of this scale has an installed power of approximately 4,800 kVA, with a typical configuration of 3 x 1,600 kVA. The main busbar is rated at 2 x 2,500 A.
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