01
Critical loads first
Identify CCTV, networking, communications and office equipment that must stay on. Confirm both watts and VA, starting behavior and required runtime.
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BM CONTRACTORSENGINEERING · TANZANIAUPS & backup power
Continuity for the equipment that matters.
BM plans UPS, inverter and battery backup arrangements for essential electrical loads. The requirement is both capacity and operating time, with a clear plan for transfer and battery replacement.
Discuss your requirements Have a BOQ or institutional RFQ? ↗
A CONSIDERED SCOPE
The right load. The right runtime.
Who is it for?
Office computers, networking, CCTV, telephone systems and selected essential circuits, subject to their actual load and continuity needs.
Your quotation should set out the assessed equipment, installation, documentation and agreed delivery terms.
02
Changeover & maintenance
Plan transfer behavior, battery replacement access, alarms and testing. Final autonomy is confirmed for the selected load and battery configuration.
EQUIPMENT & APPROACH
Selection follows the requirement.
UPS or inverter, compatible battery bank, protective devices, changeover or bypass arrangements where specified, and monitoring.
Explore equipment & specification guidance ↗Assessment, installation & handover
List critical equipment and required runtime, review starting demand and acceptable interruption, then assess installation space and existing circuits. Test the agreed transfer behaviour and demonstrate alarms and shutdown procedures.
Maintenance & ongoing care
Track battery age, alarms and load changes. Arrange periodic condition and runtime checks under a controlled plan; replacement batteries must be compatible with the system.
THE TECHNICAL BRIEF
Choose the loads that cannot stop.
UPS and inverter backup serve different continuity needs. Define the equipment, acceptable interruption and required runtime before choosing a rating.
| Option / application | What to assess |
|---|---|
| UPS for sensitive equipment | Assess watts and VA, topology, transfer behaviour, surge demand and supported battery expansion. A router and a server room need different designs. |
| Inverter / battery backup | Check continuous and starting load, usable battery energy, charger capacity, protective devices and ventilation or installation conditions. |
| Generator-supported continuity | A UPS may bridge generator start and transfer, but charger input limits and generator waveform/frequency compatibility need confirmation. |
Runtime is conditional
Battery capacity, age, discharge rate, temperature and conversion losses affect runtime. Compare systems at the stated load and battery configuration, not just the inverter’s kVA.
Test the changeover
Agree which circuits are backed up and how normal power returns. Maintenance should include battery condition, alarms, safe isolation and a planned load test without disrupting essential operations.
Will a larger UPS kVA give more backup hours?
Not necessarily. kVA describes power capacity; runtime depends mainly on the battery system and actual load. Request a load-specific runtime estimate and its assumptions.
Equipment references & manufacturer documentation
These references help compare systems. They do not establish BM stock, dealership, partnership or model availability. Confirm equipment, compatibility and supply terms in the quotation.
- Ritar ↗AGM; RL; DC
- Chloride Exide ↗Solar batteries; PowerLast; third-party solar equipment
BEFORE YOU DECIDE
Questions worth asking.
Is kVA enough to choose a UPS?
No. Actual load, power characteristics, required runtime and equipment compatibility all affect selection. Share the equipment list rather than only a preferred UPS size.
Can it work with a generator?
Potentially, but source characteristics, charging demand and transfer arrangements need assessment for the exact equipment.
BRING US YOUR BRIEF
A better brief. A useful next step.
- Critical equipment and measured loads
- Required continuity and outage duration
- Existing UPS, batteries or generator