Description
Primary-Secondary Integration
When primary and secondary equipment share an enclosure, installation sequences and cable routing must be coordinated before manufacture — otherwise field rework is costly. ETENZ completes zone planning before manufacture, confirming equipment orientation, earthing busbars, and cable paths so installation interfaces are ready at factory exit.
Equipment Layout
Internal layout is developed from the customer’s equipment list, cabinet dimensions, and wiring requirements. ETENZ confirms maintenance aisle widths, door swing direction, cable entry locations, and tray sizing — the confirmed layout drawing becomes the manufacturing basis.
Interface Pre-Fabrication
At factory exit, cable knockouts, trays, earthing bars, lighting, HVAC, fire suppression, and communications interfaces are pre-fabricated to installation-ready condition. Site teams connect customer equipment by interface list — no additional drilling or modification required.
Operating Environment
Primary and secondary zones can have separate temperature and humidity control units, preventing heat from primary equipment from affecting secondary instrumentation. HVAC sizing follows equipment heat load and site climate data, with environmental monitoring interfaces reserved in the enclosure.
Manufacturing and Delivery
Manufactured to customer drawings and BOM, with process records at key milestones. Pre-shipment inspection covers dimensions, interface positions, labeling, earthing continuity, and appearance — with inspection record issued. Customer FAT is supported.
Technical Specifications
| Parameter | Specification |
|---|---|
| Voltage adaptation | 12 / 24 / 40.5 kV class; LV 400 / 480 / 690 V |
| Primary fit-out | MV switchgear, transformer, converter or metering cubicle interfaces |
| Secondary fit-out | Protection, control, communications, DC and UPS panel interfaces |
| Monitoring interface | SCADA / EMS / BMS; IEC 61850 / Modbus-ready interfaces |
| Module size | 20ft / 40ft or custom transportable module |
| Enclosure rating | IP54 / IP55 typical; NEMA 3R / 4 by market, up to IP65 (IEC 60529) |
| HVAC ambient | -20 to +55, ventilation / AC / dehumidification fit-out °C |
| Earthing and lightning | Equipotential bar, external earthing terminals and lightning interface reserved |
| Safety interfaces | Fire, access control, video and emergency-lighting interfaces reserved |
| Standards adaptation | IEC / IEEE / NEMA / UL interface documentation by project requirements |
| Corrosion class | C3 / C4 / C5 (ISO 12944) |
| Design life | 25 years |
| Wall / roof panels | Roof 2.0 / wall 1.6–2.0 (galvanized steel) mm |
| Insulation | 50 (rock wool) mm |
| Frame | Channel / square-tube steel |
| Warranty | 12 months (extendable to 24, project-dependent) |
