Switchgear and transformer enclosures built for utility and industrial deployment, documented for empanelment.
A discom or industrial contractor evaluating a compact substation is checking two things at once: whether the enclosure is engineered to the governing IS/IEC code, and whether the documentation behind it is deep enough to support an empanelment submission.
At a glance
- SegmentCompact substations & E-houses
- Typical buyersUtility / discom, industrial substation contractors
- Core disciplineCode compliance, documentation, empanelment readiness
- CoatingISO 12944 C5M as standard
What we supply
Scope of supply
What Powervault supplies
- ISO-format steel shell, corrosion-rated envelope
- Structural frame and roof
- Cable basement and cable entry provisions
- HVAC provisions
- Internal fit-out — busbar and cable support, partitioning
- C5M marine-grade coating system
- Weld, paint and structural testing
Customer-supplied
- Switchgear
- Transformer
- Protection and control panels, unless otherwise agreed
- Earthing system beyond the enclosure
- Site foundation
Configuration options
Sizes and finishes, not fixed part numbers
| Parameter | Range offered |
|---|---|
| Footprint / bay configuration | Single or multi-bay, sized to your single-line diagram |
| Door & access arrangement | Personnel and equipment access per layout |
| Coating grade | C3 / C4 / C5M |
| Insulation | Thermally rated panel options |
| Fit-out level | Shell only · structural + electrical · fully outfitted |
Standards for this segment
Engineered to. Not implied.
| Standard | Scope | Status |
|---|---|---|
| IEC 62271-202 | High-voltage / low-voltage prefabricated substations | Engineered to — type test per customer requirement |
| IEC 61439 | Low-voltage switchgear and controlgear assemblies | Engineered to |
| IS 800 / IS 2062 | Indian structural steel design and material | Engineered to |
| ISO 12944 C5M | High-corrosivity marine coating system | Engineered to |
| ISO 1461 | Hot-dip galvanizing | Specified where required — hot-dip galvanizing of designated parts by approved galvanizer |
| EN 1090 / ISO 3834 | Structural steelwork and welding quality | Engineered to |
| ISO 668 / ISO 1496 | Dimensions, ratings and structural testing (ISO Series 1 format) | Engineered to — ISO 1496-1 type approval in progress |
Certification scope is confirmed per customer requirement at order stage.
Engineering notes
What we've actually thought about here
- Partitioning and cable basement layout are agreed against your single-line diagram before fabrication, not standardised across projects.
- Documentation depth — GA drawings, weld records, coating certificates — is built for empanelment submissions, not assembled after the fact.
- Enclosures are engineered to the governing IS/IEC code for the installation, not a generic export specification.
Get a technical response
Send us your compact substation or E-house specification.
Application, sizing, coating grade and governing standard — the more you give us, the faster we can price it.