Ases Kahraba
    New Cairo, Fifth SettlementSeptember 202418 days

    Full Electrical Installation for 320m Villa — New Cairo

    An independent villa in New Cairo, 3 floors + basement. The owner planned for central AC, smart home, and future solar integration. The installation required full engineering design to accommodate all these loads.

    The Challenge

    The main challenge was that the villa is split across 3 floors with a pool, garage, and external annex — each with independent loads. The owner wanted a main board design allowing easy future expansion without full rewiring.

    Additionally, separate smart home (KNX) conduit routes were required, isolated from the power circuits, to simplify future maintenance.

    The Solution

    Designed a 3-phase main board (125A) with sub-boards per floor

    Separated central AC circuits (6×10mm²) from lighting and socket circuits

    Installed separate 20mm KNX conduits from distribution cabinet to each room

    Dedicated pool & transfer pump circuit with dual RCD protection

    Full insulation testing with Fluke meter before handover — report delivered

    25% spare capacity in each sub-board for future expansion

    Materials Used
    El Sewedy NYY cables (1.5/2.5/6/10/16mm²)Schneider Electric iC60N breakersSchneider Acti9 RCCB (25/40/63A)Certified Elhaggar PVC conduitsCertified KNX cable (Belden)ABB metallic distribution boards
    Execution Timeline

    Phase 1

    Day 1-3: Inspection, drawings, load distribution

    Phase 2

    Day 4-10: Conduit and cable runs across all floors

    Phase 3

    Day 11-16: Board installation and internal connections

    Phase 4

    Day 17-18: Testing and report handover

    Result

    The villa was handed over after 18 days with a full technical report including board schematics, load schedules, and insulation test results. The owner later added a KNX system and solar panels with zero rewiring needed.

    5-year warranty on all installation work.

    Your Next Project?

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