Kazakhstan Expo is an exhibition complex operated to an international exhibition and event programme. On this project Devpan supplied the main distribution boards, the pavilion supply branches and the outdoor field panels suited to a severe continental climate.
Electrical Profile of the Project
- LocationKazakhstan
- Building typeExhibition and congress centre
- Installed power≈ 6,400 kVA
- Transformer configuration4 × 1,600 kVA
- Main busbar rated current2 × 3,200 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 international exhibition complexes each pavilion behaves like an independent building in its own right. Operated by different countries or institutions, the pavilions build up and dismantle their own electrical requirements to their own timetables. That calls for a separate supply and separate metering per pavilion.
At Kazakhstan Expo the main distribution is built with outgoing branches per pavilion; each branch is separately protected and metered. Because of the severe continental climate, the gaskets and cable entry components in the outdoor field panels are selected from materials that keep their flexibility at low temperature, and an enclosure heater prevents freezing and condensation. The medium voltage inside the site is at 10 kV.
Devpan Scope and Switchboard Architecture
The Devpan scope reaches from low voltage main distribution to the pavilion supply panels and the outdoor lighting.
- Main distribution boards (DevPanel): 3,200 A class, 65 kA / 1 s, Form 4a – 4b internal separation, main distribution with bus coupler arrangement.
- Pavilion supply panels (DevBox): Separately protected and separately metered supply points per pavilion.
- Outdoor field panels: Gasket, cable entry and condensation control solutions resistant to low temperature.
- Motor control (DevControl): Ventilation, heating and smoke extraction sets.
- Power factor correction (DevComp) and lighting (DevPower): Stepped compensation, exhibition area and perimeter lighting.
Technical Configuration
| Installed power | ≈ 6,400 kVA |
|---|---|
| Transformer configuration | 4 × 1,600 kVA |
| Medium voltage level | 10 kV |
| Low voltage / frequency | 400 / 230 V, 50 Hz |
| Main busbar rated current | 2 × 3,200 A |
| Short-time withstand current (Icw) | 65 kA / 1 s |
| Form of internal separation | Form 4a – Form 4b |
| Degree of protection (IP) | IP31 – IP41 |
| Generator back-up | 2 × 1,250 kVA |
| Verification standard | IEC 61439-1, IEC 61439-2 |
Devpan Products Used in This Project
Project-Specific Engineering Topics
Supply and metering per pavilion
Each pavilion is fed and metered through its own branch; because the build-up and dismantling timetables differ, the pavilions can be energised independently of one another.
Material behaviour at low temperature
Under severe winter conditions gaskets and plastic components harden; materials that keep their flexibility are selected and an enclosure heater prevents freezing.
Load variation with the event calendar
Between exhibition periods the facility load drops markedly; the compensation stages are sized for that wide range.
Safety of temporary installations
Residual current protection is standardised at the supply points for the temporary installations inside the pavilions, and verified with a post-installation checklist.
Frequently Asked Questions
Why is pavilion supply built separately in exhibition complexes?
Because the pavilions are operated by different institutions and their build-up and dismantling timetables are independent of one another. A separate supply branch means that work in one pavilion does not affect the others, while separate metering allows consumption to be billed to the exhibitor concerned.
What is the installed power for Kazakhstan Expo?
For an exhibition and fair complex of this scale the installed power is approximately 6,400 kVA, with a typical transformer configuration of 4 x 1,600 kVA. The main busbar rating is planned at 2 x 3,200 A and the medium voltage inside the site is at 10 kV.
What additional measure is taken for temporary installations?
Residual current protection is standardised at the supply points. Because the installation inside a pavilion is rebuilt for every event, it may not match the quality of a permanent installation; keeping the point of protection on the supply side limits that risk. Insulation and continuity checks after installation are standard practice as well.
Similar Reference Projects
Uzbekistan ExpoExhibition and congress centre · Uzbekistan
Georgia Sports ComplexSports complex · Georgia
Georgia Sports HallIndoor sports hall · GeorgiaDo 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.
Request a quotation