TEDAŞ-MLZ/95-060.B Technical Specification for Metal-Enclosed Compact MV/LV Transformer Substations

Overview

This document is the technical specification issued by Türkiye Elektrik Dağıtım A.Ş. (TEDAŞ) covering the design, manufacture and testing of metal-enclosed compact medium-voltage/low-voltage (MV/LV) transformer substations up to a highest system voltage of 36 kV. The first issue dates from March 1995 and the current version was revised in June 2006. All equipment is factory-assembled and interconnected inside a metal enclosure.

Kiosk-type substations of this kind are often used for outdoor service connections and small edge sites. The specification sets enclosure protection, water-tightness and concrete base requirements. The enclosure and ventilation panels must be IP 23D and the internal wire mesh partitions IP 2X (TS EN 60529). The roof, side walls and tank section must be fully watertight, with the roof sloped to shed rain and snow.

Among the structural requirements, the concrete tank section must be at least class C35 per TS 500, using ready-mix concrete to TS EN 206-1. Although the specification is publicly available from TEDAŞ, only the record's summary and item data were used here and the full text was not read. Detailed electrical values and test methods must be taken from the original specification.

Key points

1. Covers design, manufacture and test of metal-enclosed compact MV/LV transformer centres up to 36 kV highest system voltage.
2. All equipment is factory-assembled and interconnected inside a metal enclosure.
3. Enclosure and ventilation panels are IP 23D, internal wire mesh partitions IP 2X (TS EN 60529).
4. Roof, side walls and tank section must be fully watertight; the roof is sloped to shed rain and snow.
5. The concrete tank section must be at least class C35 per TS 500, using ready-mix concrete to TS EN 206-1.
6. The first issue was March 1995; the current version was revised in June 2006.

Using it in design

• In site layout, offer a compact kiosk substation block (footprint, IP 23D, ventilation) as an option for edge and small sites.
• Offer the same block as an option for the connection point owned by the distribution operator.
• Carry the substation's IP rating into the environmental check.
• Add the C35 class and ready-mix concrete requirement for the concrete base to the design notes.

Who should read it

Electrical and site engineers selecting and laying out compact transformer substations for edge and small data centres in Turkey.

Related standards

• IEC 62271-202
• TEDAŞ-MLZ/2006-052.B

Publication details

Authors

Türkiye Elektrik Dağıtım A.Ş. (TEDAŞ)

Publisher

Türkiye Elektrik Dağıtım A.Ş. (TEDAŞ)

Year

2006

Document number

TEDAŞ-MLZ/95-060.B

Document language

Turkish

Source type

Turkish regulation

Access

Free to read

Licence

Copyright retained; citation only — the publisher’s terms apply to the original document

Citation