İstanbul Oyak Dragos is a residential project run by a corporate client to a disciplined specification. On this project Devpan delivered the switchboard family together with type test references, a verification file and traceable material records.
Electrical Profile of the Project
- LocationIstanbul, Türkiye
- Building typeResidential complex
- Installed power≈ 3,200 kVA
- Transformer configuration2 × 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
On projects run by corporate clients an electrical switchboard is not only a product but a documentation chain. Which batch each component came from, which type test reference the design relies on and what results the site tests produced are all inseparable parts of the handover file.
At İstanbul Oyak Dragos that chain is set up from the outset. Single-line diagrams, general arrangement drawings, the material schedule and the type test references are submitted for approval before manufacture. Component batch data is recorded during production; on site, insulation resistance, phase sequence, protection settings and functional tests are reported in a single common format. The approach both accelerates acceptance and provides traceability throughout the operating life.
Devpan Scope and Switchboard Architecture
The Devpan scope covers the switchboard family from main distribution to the block metering panels, together with the verification file that accompanies it.
- Main distribution boards (DevPanel): 2,500 A class, 65 kA / 1 s, main distribution with bus coupler arrangement.
- Block sub-distribution and metering panels (DevBox): Consumer metering and floor distribution.
- Power factor correction (DevComp): Automatic stepped compensation with detuned reactors.
- Lighting and power panels (DevPower): Common area, car park, landscape and emergency lighting circuits.
- Verification file: Type test references, material traceability records and site test reports in a standard format.
Technical Configuration
| Installed power | ≈ 3,200 kVA |
|---|---|
| Transformer configuration | 2 × 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 |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 1 × 1,000 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Building the verification chain
Verification under IEC 61439-1 / -2 rests on using a type test reference together with the design rules. The file shows explicitly which clause is satisfied by which method.
Material traceability
Batch data for circuit breakers, contactors and measuring devices is recorded during manufacture, so that a fault investigation during the operating life can be traced back.
Standard reporting of site tests
Insulation resistance, continuity, phase sequence, protection settings and functional tests are reported in one common format, which speeds up acceptance and leaves nothing open to dispute.
Design shared before approval
Single-line diagrams, general arrangement drawings and the material schedule are submitted for approval before manufacture, which minimises the need for revisions at site stage.
Frequently Asked Questions
What does a switchboard verification file contain?
Four main headings: the approved single-line diagram and general arrangement drawing, the material schedule with component traceability records, the design verification references under IEC 61439, and the site test reports. Together these four document the compliance of the board in both design and manufacture.
Are a type test reference and design verification the same thing?
They are not. A type test is the laboratory testing of a reference design; design verification is the demonstration that the project board is derived from that reference design within the permitted limits. The verification file establishes that link.
What is the installed power at İstanbul Oyak Dragos?
A residential project of this scale has an installed power of approximately 3,200 kVA, with a typical transformer configuration of 2 x 1,600 kVA. The main busbar is rated at 2 x 2,500 A.
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