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+255 616 627 609 info@tangtecheng.com Tabata Business Centre Building, 1st Floor, Dar es Salaam
Tang Tech& Engineering Ltd
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+255 616 627 609 info@tangtecheng.com
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Tang Tech & Engineering Ltd

Class V electrical works contractor for MV/HV power, testing, automation and ICT across Tanzania.

CRB Class V · EWURA Class A · BRELA 168901461

Services

  • MV/HV overhead line construction
  • Substation & transformer installation
  • Switchgear & metering panels
  • Testing, diagnostics & commissioning
  • Electrical installation & standby power
  • ICT & security systems
  • Automation & control systems

Company

  • Projects
  • Products
  • Trainings
  • Clients & partners
  • About
  • Contact

Contact

  • Tabata Business Centre Building, 1st Floor
    Dar es Salaam, Tanzania
  • +255 616 627 609
    +255 659 801 321
  • info@tangtecheng.com
© 2026 Tang Tech & Engineering LtdImage credits
Outdoor electrical substation with steel structures, insulators and high-voltage equipment

Class V registered electrical contractor · Dar es Salaam

Power infrastructure for Tanzania, built and tested to standard.

We build 11 kV and 33 kV lines, substations and switchgear, test and commission HV equipment, and install the automation, ICT and security systems that run on them.

Request a quoteSee our projects
  • CRBClass V Electrical Works Contractor
  • EWURAClass A Electrical Installation Licence
  • BRELACertificate of Incorporation

Core power services

Medium and high-voltage work, from the first pole to the commissioning certificate.

Line technician in a hard hat and harness working on overhead power lines

MV/HV overhead line construction

Design, pole setting, stringing, line shifting and commissioning of 11 kV and 33 kV distribution networks.

Service details
Distribution transformer mounted on a utility pole

Substation & transformer installation

Supply, pole or ground mounting, oil testing and protection for 315 kVA to 1250 kVA+ transformers.

Service details
Distribution board with circuit breakers and control wiring

Switchgear & metering panels

Assembly, supply and installation of 630–800 A metering cabinets, auto-reclosers and main LV boards.

Service details
Electrician testing a distribution panel with a multimeter

Testing, diagnostics & commissioning

CT/PT analysis, dielectric and partial discharge testing, breaker diagnostics, thermography and commissioning.

Service details

Also for buildings and industry

  • Electrical installation & standby powerBuilding installations, distribution panels, generators, ATS integration and hybrid solar systems.
  • ICT & security systemsNetwork design, structured cabling, telephony, IP-CCTV, access control and electric fencing.
  • Automation & control systemsIndustrial automation and smart control for manufacturing, buildings and utilities.
  • 44+Projects completed and commissioned
  • TZS 790M+Total project value delivered
  • 20+Corporate and institutional clients
  • 100%Compliance with EWURA, CRB and TANESCO standards
Outdoor electrical substation with steel structures, insulators and high-voltage equipment

Featured project

800 kVA substation and 33 kV line for heavy industry

Turnkey installation, testing and commissioning of an 800 kVA ground-mounted substation and a 33 kV high-tension utility line to support expanded production.

  • 33 kV medium-voltage overhead line
  • 800 kVA, 33/0.415 kV ground-mounted step-down transformer
  • Auto-recloser protection system
  • 800 A primary metering panel

Energised smoothly with zero safety incidents and full TANESCO regulatory compliance.

View all projects

Equipment we supply, install and test

Current-generation MV equipment and the diagnostic instruments our engineers use on site.

Browse all products
Utility pole with overhead conductors and line equipment

Switchgear & protectionPopular

Pole-mounted auto-reclosers

15 – 38 kV · 630 – 800 A

Automatically clear transient faults and restore supply on overhead lines without a site visit.

Control room with electrical panels and gauges

Switchgear & protectionNew

SF6-free ring main units

Up to 24 kV · 630 A

Compact MV switchgear for secondary distribution that uses pure air or vacuum instead of SF6 gas.

Close-up of an electronic measuring device

Test & diagnostic instrumentsPopular

Relay test sets & CT/PT analysers

Secondary & primary injection

Multi-functional test systems for protection relays, current and voltage transformers.

Our mandate is simple: to deliver uncompromising electrical infrastructure that powers industrial growth across Tanzania, with an unyielding commitment to safety, precision and grid reliability. Whether we are building a 33 kV line, calibrating MV switchgear relays or commissioning a substation, we measure our success by the safety and continuity of our clients' assets.

Eng. Allen MdendemiManaging Director, Tang Tech & Engineering Ltd

Trusted by industry, hospitality and institutions

  • Sahara Group
  • Johari Rotana
  • Hyatt Regency Dar es Salaam
  • National Housing Corporation
  • Jubilee Allianz
  • Multi Cable Ltd
  • Cosmos Group
Clients and partners

Technical training

Practical courses for technicians and engineers in switchgear, testing, automation, design and security systems, taught by the people who do the work.

View training programmes
  • Switchgear assembly4 weeks
  • Testing & commissioning4 weeks
  • Industrial automation5 weeks
  • AutoCAD for electrical design6 weeks
  • Security systems3 weeks

Planning a substation, line or upgrade?

Send us your site details and drawings. An engineer will review them and come back with a scope and quotation.

Request a quote +255 616 627 609