İstanbul Uniq Offices is an office project located within a culture and lifestyle centre. On this project Devpan manufactured the main distribution boards with Form 4a internal separation, the floor panels carrying tenant-level metering infrastructure and the motor control outgoing ways.
Electrical Profile of the Project
- LocationIstanbul, Türkiye
- Building typeOffice building
- 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
In office buildings inside a mixed lifestyle centre, operating hours and user profiles vary widely. The office floors work to business hours, while the culture and event venues in the same development are busiest in the evening. That makes it necessary for the office building to manage its own distribution independently.
At İstanbul Uniq Offices the main distribution is arranged to feed every function within the building through its own metering and protection stage. Form 4a internal separation allows neighbouring outgoing ways to stay energised while work is carried out on one tenant branch. Spare module positions are left in the floor panels to suit tenant subdivision, and the ventilation and cooling plant are fed from separate motor outgoing ways.
Devpan Scope and Switchboard Architecture
The Devpan scope reaches from main distribution to the floor and tenant panels and the mechanical services motor outgoing ways.
- Main distribution boards (DevPanel): 2,500 A class, 65 kA / 1 s, Form 4a internal separation, main distribution with bus coupler arrangement.
- Floor and tenant panels (DevBox): Tenant-level metering and protection, with a compartment layout that accepts additional outgoing ways.
- Motor control outgoing ways (DevControl): Ventilation, cooling plant, booster pumps and car park fans.
- Power factor correction (DevComp): Detuned compensation matched to the harmonic profile of an office load.
- Lighting and power panels (DevPower): Common area, car park, façade and emergency lighting circuits.
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 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
Maintenance on a tenant branch with Form 4a
Because each outgoing unit sits in its own compartment, neighbouring ways stay energised while work is carried out on one tenant branch; office operation is not interrupted.
Flexibility for tenant subdivision
Spare module positions and measuring points are left in the floor panels; if a floor is later divided, the second tenant branch is added without intervening in the board.
Separating the mechanical services loads
Ventilation and cooling plant are fed from separate motor outgoing ways; the starting current and duty cycle of these loads differ from the office socket outlet circuits.
Harmonic management in an office load
IT equipment and LED lighting generate harmonics; compensation is specified with detuned reactors and the neutral is sized equal to or larger than the phase conductors.
Frequently Asked Questions
Is Form 4a sufficient in office buildings?
In office buildings with a moderate number of tenants Form 4a is sufficient in most cases, since every outgoing unit is separated in its own compartment. Where tenant density is very high or an outage is unacceptable, Form 4b is preferred, because in that class the cable termination volumes are separated as well.
What is the installed power at İstanbul Uniq Offices?
An office building of this scale has an installed power of approximately 4,800 kVA, with a typical transformer configuration of 3 x 1,600 kVA. The main busbar is rated at 2 x 2,500 A with a short-time withstand current of 65 kA / 1 s.
Which Devpan products were used on this project?
The project combines DevPanel main distribution boards, DevBox floor and tenant panels, DevControl motor control outgoing ways, DevComp compensation panels and DevPower lighting panels.
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Send us your single-line diagram, your transformer rating or simply your load list. Our engineering team runs the short-circuit and discrimination study and defines the form of separation and busbar cross-section with you.
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