The Dushanbe Public Building is an administrative building serving the public in the capital of Tajikistan. Devpan supplied the main distribution and floor boards together with power factor correction and lighting panels.
Electrical Profile of the Project
- LocationDushanbe, Tajikistan
- Building typeMunicipal building
- Installed power≈ 1,600 kVA
- Transformer configuration2 × 800 kVA
- Main busbar rated current2 × 1,250 A
- Short-time withstand current (Icw)50 kA / 1 s
- Devpan scopeLow voltage switchboards, engineering and site coordination
- Verification standardIEC 61439-1, IEC 61439-2
About the Project
A public building is expected to keep serving citizens without interruption: IT rooms, registry systems, security and access control, HVAC and meeting halls operate throughout the day. In Tajikistan most electricity is generated by hydropower plants, and voltage fluctuations can occur on the network during winter. Dushanbe also lies in a zone of high seismic activity, so enclosures, busbar supports and mounting details have to be assessed for earthquake loads.
For a public building of this scale, the typical arrangement is about 2 × 800 kVA of transformer capacity from the 10 kV network and a coupled main board. DevPanel boards with 2 × 1,250 A busbars, 50 kA / 1 s withstand and Form 3b segregation distribute general loads, critical IT loads and security systems from separate sections. Voltage monitoring relays and a generator of approximately 630 kVA protect critical loads when supply quality deteriorates. DevBox boards serve each floor, DevPower panels control lighting, and DevComp balances the reactive load.
Devpan Scope and Switchboard Architecture
Devpan’s scope runs from the building’s main LV distribution to the floor and lighting boards.
- Main distribution boards (DevPanel): 2 × 1,250 A busbars, 50 kA / 1 s, Form 3b, voltage monitoring and generator transfer.
- Floor boards (DevBox): IP31 – IP41 sub-distribution boards for offices, archives, meeting rooms and IT areas.
- Lighting panels (DevPower): Centrally controlled boards for office, corridor, façade and car park lighting.
- Power factor correction (DevComp): Stepped automatic compensation for HVAC and lift loads.
Technical Configuration
| Installed power | ≈ 1,600 kVA |
|---|---|
| Transformer configuration | 2 × 800 kVA |
| Medium voltage level | 10 kV |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 1,250 A |
| Short-time withstand current (Icw) | 50 kA / 1 s |
| Form of internal separation | Form 3b |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 1 × 630 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Seismic resilience
Enclosures are anchored to floor and wall with reinforcement, and busbar supports are chosen to withstand earthquake-induced vibration.
Voltage fluctuations
Voltage monitoring relays initiate automatic transfer on under- or overvoltage, protecting sensitive equipment.
Critical load segregation
IT, security and emergency lighting loads sit on a separate busbar, and only this section is transferred to the generator during an outage.
Energy monitoring
Power analysers on the main outgoing feeders let facility managers track consumption by building section.
Frequently Asked Questions
What is the installed power of the Dushanbe Public Building?
For a public building of this scale, the installed power is approximately 1,600 kVA with a typical transformer configuration of 2 × 800 kVA. The main busbar is typically rated 2 × 1,250 A with 50 kA / 1 s withstand; the MV level is 10 kV and standby comes from a generator of around 1 × 630 kVA.
How are switchboards installed in a seismic zone?
Boards are fixed with anchored plinths and top bracing, heavy equipment is placed low in the enclosure and cable entries are left flexible, reducing the risk of overturning and connection damage.
Which loads are treated as priority in a public building?
Typically the IT and server room, security and CCTV systems, fire detection, emergency lighting and lifts form the priority load group.
Similar Reference Projects
Ministry of Health Building, GeorgiaMunicipal building · Tbilisi, Georgia
Mali Ministry of Agriculture BuildingMunicipal building · Bamako, Mali
Tursunzade School ProjectSchool campus · Tursunzade, TajikistanDo you have a project of a similar scale?
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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