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Power, Lighting & Extra-Low Voltage

Electrical & ELV Systems

Power from the HT intake to the last outlet, and the low-voltage systems that run the building.

We design, supply, install and commission complete electrical and ELV systems for industrial and commercial projects — from 33 kV and 11 kV HT systems and LT distribution to UPS and diesel generators, and the extra-low-voltage systems for data, CCTV, PA, access control and BMS.

Reviewed by the Yonah Engineering technical team · Updated October 2026 · 11 Electrical & ELV projects in our portfolio

  • HT 33 / 11 kVSystems
  • A-GradeElectrical Licence
  • ELVIntegrated Systems

Key Services Include

Electrical

  • HT 33 kV system
  • HT 11 kV system
  • LT system
  • Power & lighting distribution
  • Lightning protection — conventional & surge protection
  • Emergency power distribution — UPS & diesel generators

ELV

  • Networking & data
  • CCTV
  • PA (public address)
  • Access control
  • BMS

Need Electrical & ELV Systems for your project?

Talk to our engineers for a free consultation, site survey and competitive quote.

Where We Work

Industries & Applications

Electrical & ELV Systems we design and install for every kind of facility.

  • Factories & process plants
  • Warehouses & logistics parks
  • Offices & IT parks
  • Hospitals
  • Data centres
  • Hotels & hospitality

Systems & Equipment

What We Install & Maintain

01

HT switchgear & transformers

33 kV and 11 kV panels, RMUs and transformers, tested before energisation.

02

LT panels & distribution

Main LT panels, MCCs, APFC panels, busducts and distribution boards.

03

UPS & diesel generators

Emergency power with changeover for critical loads.

04

ELV systems

Networking, CCTV, PA, access control and BMS.

Our Process

From Design to Handover

How we deliver safe, reliable Electrical & ELV Systems on every project.

  1. 01

    Site Survey

    Connected load, site layout and ELV requirements.

  2. 02

    Design & Engineering

    Single-line diagrams, cable sizing and ELV layouts.

  3. 03

    Approvals

    Drawings for electrical inspectorate and utility approval.

  4. 04

    Supply

    HT and LT panels, transformers, cables, UPS, DG and ELV equipment.

  5. 05

    Installation & Commissioning

    Installation, testing, energisation and system integration.

Standards & Codes

Built to Recognised Standards

The design references our engineers work to on every project.

  • IS 732Electrical wiring installations
  • IS 3043Earthing
  • IS/IEC 62305Lightning protection
  • CEA RegulationsSafety & electric supply
  • ANSI/TIA-568Structured cabling

FAQs

Common Questions

Answers to what clients most often ask us about Electrical & ELV Systems.

Still have a question?Our engineers are happy to help.

What is the difference between electrical and ELV systems?

Electrical systems carry power: HT and LT supply, distribution, lighting, earthing and emergency power. ELV (extra-low voltage) systems carry data and signals: networking, CCTV, public address, access control and BMS. We design and install both, so they are coordinated on site.

Which HT systems do you handle?

HT systems at 33 kV and 11 kV, including HT panels, ring main units, transformers and HT cabling, with testing and commissioning before energisation.

Do you provide surge and lightning protection?

Yes. We install conventional lightning protection with air terminals, down conductors and earth pits, plus surge protection devices on the panels to protect sensitive equipment.

Do you handle statutory approvals?

Yes. We are an A-grade electrical licence holder, and we prepare the drawings and documentation needed for electrical inspectorate approval and support the inspection.