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QUANGANHCONS · FACTORY POWER · DISTRIBUTION · MEP ELECTRICAL
Industrial MV/LV Electrical Contractor in Vietnam
One coordinated electrical package from incoming power to production loads.
What this service covers
QuangAnhcons delivers defined MV/LV electrical packages for new factories, warehouses and facility expansions in Vietnam. The scope can connect the incoming supply and transformer to main distribution, production equipment, lighting and essential electrical services, with documented interfaces to the main contractor and other MEP trades.
Discuss your project in English with our team. Our priority delivery area is Southern Vietnam; project location, access and mobilization are confirmed during quotation.
A defined scope from design to handover
Load and distribution planning
Build a load register by equipment, operating mode and expansion phase. Define normal, essential and standby loads, supply boundaries and the required level of operational continuity.
Switchboards and cable systems
Coordinate MSB, MDB, DB, motor feeders, ATS interfaces, busduct or cables, trays and supports. Equipment ratings and protection settings follow the system study rather than a generic capacity table.
Lighting, earthing and interfaces
Provide the agreed lighting and small-power circuits, protective conductors, bonding and grounding interfaces. Coordinate equipment isolation, HVAC power, fire-system electrical supplies and building-management signals where specified.
Installation and project coordination
Prepare coordinated routes, work methods, inspection points and shutdown plans. Resolve clashes, fire compartment penetrations, maintainability and access before installation.
Engineering decisions that shape your project
Demand and transformer capacity
Estimate demand by load group using documented operating profiles and justified diversity. For balanced three-phase electrical input power, S(kVA) = P(kW)/PF and I(A) = 1,000 × P/(√3 × U_LL(V) × PF). An illustrative 500 kW at 400 V and PF 0.90 draws about 802 A. This is a load-current example, not a breaker or cable selection.
Cable selection needs more than ampacity
Verify the installation method, ambient or soil temperature, grouping, conductor material, harmonics, voltage drop, short-circuit withstand and protective disconnection. Coordinate load current, protective-device rating and corrected cable capacity. Parallel conductors need compatible lengths, routing, termination and current sharing.
Fault level and selective protection
Assess prospective short-circuit current at each relevant board, including transformer impedance and source contribution. Verify breaking and withstand ratings, upstream/downstream coordination and the consequences of a fault on critical processes. A larger breaker alone does not increase the safe capacity of an existing feeder.
Power quality and future expansion
Review motor starts, variable-speed drives, welders and other nonlinear loads. Harmonics can affect transformers, neutrals and capacitor banks. Decide compensation and filtering from measurements or a justified study. Reserve physical space and electrical capacity separately; an empty switchboard way is not proof of spare transformer capacity.
What belongs in the bill of quantities
| Work or material group | Measurement basis | What the offer should define |
|---|---|---|
| Main and distribution switchboards | Set / feeder | Ratings, protection, metering, enclosure and verification |
| Power and control cables | m / circuit | Route, conductor, cores, size, laying method and terminations |
| Cable tray, ladder and supports | m / set | Size, finish, load, support spacing and penetrations |
| Lighting and small power | Luminaire / outlet / point | Fixture specification, controls and environmental rating |
| Earthing and bonding | m / electrode / connection | Design quantities and inspection/test points |
| Testing and installation services | Package / test point | Defined inspection records, energization coordination and training |
From your brief to acceptance
- Receive load lists, architectural plans, equipment layouts and utility conditions.
- Define electrical boundaries and coordinate with the client's design team.
- Develop calculations, drawings, cable schedules and procurement specifications.
- Approve the BOQ, programme, access arrangements and inspection plan.
- Install and test by area or production phase with controlled interfaces.
- Complete joint inspections, acceptance, as-built records and operator handover.
Documents you should receive
- Load schedule and electrical design basis
- Single-line diagrams and coordinated layouts
- Cable, protection and earthing design records for the contracted scope
- Equipment submittals and material inspection records
- Inspection/test results and approved protection settings
- As-built drawings, labels, O&M information and defects register
The quotation identifies included documents, review cycles, approvals, acceptance criteria, exclusions and warranty obligations.
Frequently asked questions
Can you quote a new factory before it is built?
Yes. A coordinated layout, load schedule and supply-point information can support an initial BOQ and budget. Unknown equipment loads and routes are recorded as assumptions or provisional quantities.
Does MV/LV electrical work include all mechanical and fire systems?
Only where expressly included. Electrical power and interface wiring can be coordinated with those systems; specialist equipment, mechanical installation and statutory submissions need a clear responsibility matrix.
Can construction be phased around production?
A phased method can be developed after reviewing existing records, operating constraints, isolations and outage windows. Any temporary supply or cutover requires an approved site-specific plan.
Is a 12-month installation warranty available?
Yes, it can be stated in the quotation and contract from the agreed acceptance date. Manufacturer warranties, maintenance obligations and exclusions are documented separately.
Technical reference framework
Relevant engineering references are selected for the contracted equipment and installation. Applicable Vietnamese requirements, local network conditions, manufacturer instructions and the agreed design basis determine project compliance; listing a standard is not a certification claim.
Send the information needed for a useful quotation
Start with the drawings and data you already have. We can identify what can be priced now and which points require verification.
- Factory location, floor area and programme
- Architectural plans and production equipment layout
- Equipment electrical ratings and operating sequence
- Incoming supply information and transformer data
- Standby power, uptime and expansion requirements
- Available drawings, BOQ and scope boundaries with other contractors
Contact QuangAnhcons
+84 919 758 191
sales@quanganhcgte.com
The email button opens your mail app with a service-specific brief. Attach drawings or share a viewable document link before sending.