The 98 Schools Project is a school construction programme in Turkmenistan covering a large number of educational buildings. Devpan supplied standardised main distribution, sub-distribution and lighting boards for the project.
Electrical Profile of the Project
- LocationTurkmenistan
- Building typeSchool campus
- 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
When many schools are built under a single programme, the key requirement for power distribution is repeatability: the same board types, the same protection logic and the same spare parts simplify both installation and the years of maintenance that follow. In schools, pupil safety comes first, so residual current protection, emergency lighting and fire detection supplies must be engineered with care. Turkmenistan’s hot summers and cold winters also cause cooling and heating loads to vary markedly with the seasons.
For a school complex at this scale, approximately 2 × 800 kVA transformers are typically fed from the 10 kV network. DevPanel boards with a 2 × 1,250 A main busbar and Form 3b segregation run in two sections with a bus coupler. DevBox floor boards provide separate circuits for classrooms, laboratories, the sports hall and the canteen, while DevPower panels manage indoor and outdoor lighting on time schedules. DevComp panels correct the power factor, and a generator of around 630 kVA supports emergency lighting, fire systems and essential services.
Devpan Scope and Switchboard Architecture
Devpan’s scope is a standard set of boards for each school, from low-voltage main distribution to classroom and lighting boards.
- Main distribution boards (DevPanel): 2 × 1,250 A main busbar, 50 kA / 1 s, Form 3b, bus coupler and generator changeover.
- Sub-distribution boards (DevBox): floor boards for classrooms, laboratories, sports hall, canteen and administration, IP31-IP41.
- Lighting and power panels (DevPower): time-scheduled and photocell control for corridor, classroom and grounds lighting.
- Power factor correction (DevComp): automatic stepped compensation for air-conditioning and lighting 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
Standardisation
Using the same board types and circuit layout in every school simplifies manufacturing, installation, testing and spare-parts management.
Pupil safety
Classroom and laboratory sockets are fed from 30 mA RCD-protected circuits, and boards are lockable against unauthorised access.
Emergency supplies
Emergency lighting, fire detection and public address systems are fed from a separate, generator-backed busbar.
Timetable-driven load profile
Because demand changes sharply through the school day, lighting and air conditioning are managed by time schedules.
Frequently Asked Questions
What is the installed power of a school within the 98 Schools Project?
For a school complex 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 a withstand of 50 kA / 1 s, and the medium-voltage level is 10 kV.
What is the benefit of standard boards across many schools?
A standard design shortens manufacturing and delivery times, lets operating staff work with identical boards in every school and allows a common spare-parts stock.
Which loads are supplied during a grid outage?
Typically a generator of around 630 kVA takes over emergency lighting, fire detection and public address, heating pumps and essential service loads.
Similar Reference Projects
Ashgabat 600- and 500-Pupil SchoolsSchool campus · Ashgabat, Turkmenistan
Tursunzade School ProjectSchool campus · Tursunzade, Tajikistan
Ajayip Bina ESPower plant · TurkmenistanDo 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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