Tuesday, May 28, 2024




This document "Method Statement For Installing Uninterrupted Power Supply (UPS)" uploaded by HSE Documents highlights the step-by-step process for safely and effectively installing a UPS system. It likely covers aspects like:

Preparation: This might involve reviewing relevant documentation, conducting a site survey to ensure proper space and access for the UPS, and verifying the delivery of all necessary materials.

Safety Procedures: The document should outline essential safety precautions for working with electrical equipment and batteries. This could include using Personal Protective Equipment (PPE) and lockout/tagout procedures.

Installation Process: This section would provide a detailed breakdown of the installation steps, likely including:

  • Positioning the UPS unit
  • Internal and external component checks
  • Cable connection procedures, emphasizing the separation of AC, DC, and communication cables
  • Battery connection protocols
  • Grounding the UPS unit

Testing and Commissioning: The document might specify procedures for verifying the functionality of the installed UPS system, potentially involving a load bank test.

Documentation and Handover: This section might address recording all installation details, obtaining sign-offs from relevant personnel, and providing handover instructions for operating the UPS.

Table of Contents

1.0. Scope of Works

1.1. Scope of Activities

1.2. Site Procedure

1.3. Preparation stage

3.2. Installation

Stage UPS


3.3. Testing and Commissioning

3.4. Preferred Brands

2.0. Health & Safety risks and controls

3.0. Access / Egress

4.0. Lighting

5.0. Plant & Equipment

6.0. Personnel Training Certificate

7.0. Hazardous Materials & Substances

8.0. Waste management

9.0. Special Control measures

10.0. Appendix

1.0. Scope of Works

1.1. Scope of Activities

This scope defines the minimum standards for installing Uninterrupted Power Supply (UPS). The UPS, Batteries, I/O Panel with integrated PDU, and all the internal power/control cabling will be provided and installed.

1.2. Site Procedure

Site mobilization shall be done with real-time monitoring of the conditions & progress of builder works. Before commencement of the work, examine the physical condition of the area. Photographs should be taken where necessary, before commencement and during work.

1.3. Preparation stage

The delivery vehicle will be parked in the loading area; the equipment will be unpacked and removed from the vehicle using the tail lift.

3.1.1. Verify compliance between the type label on the reverse side and the system ordered.

3.1.2. Check input and output voltage.

3.1.3. Copy the type label data to the label copy below for easy identification of the system.

3.1.4. Use a forklift or pallet to transport the system to the installation site.

3.1.5. Open the UPS doors and unscrew the metal straps mounted on the front cover of the UPS.

3.1.6. The UPS equipment will then be moved into position using scoots and pallet trucks.

3.1.7. The batteries and stand will be moved into the UPS room using pallet trucks

3.2. Installation 

Stage UPS

3.2.1. All parts are accessible from the front or top of UPS.

3.2.2. Identify and check against the delivery note all batteries, links, and cables are sufficient and correct.

3.2.3. Study the installation guide and layout drawings supplied by the manufacturer.

3.2.4. Attach incoming and outgoing cables to terminals.

3.2.5. Always keep AC, DC, and communication cables separate.

3.2.6. Follow the installation guide for power and communication cable entry.

3.2.7. Use commercially available approved solderless lugs for the wire size required for your application. Connect a wire to the lug using an appropriate tool.

3.2.8. Input, output, and DC cables are routed in separate conduits.

3.2.9. Verify all power connections are tight.

3.2.10. Verify all control wire connections are tight.

3.2.11. Verify all power wire connections have proper spacing between exposed surfaces, phase to phase, and phase to ground.

3.2.12. Verify that all power & control wires are run in individual, separate conduits.


3.2.13. Load new batteries paying particular attention to placement according to diagram and polarity.

3.2.14. Connect positive and negative feeds to the start and finish of the string

3.2.15. Connect one of the center links and note the voltage and polarity

3.2.16. The installation of batteries requires battery knowledge and should only be carried out/supervised by qualified electricians familiar with batteries. Keep unauthorized personnel away from batteries.

3.2.17. Avoid rough treatment and opening of batteries. Released electrolytes are harmful to skin and eyes, and may be toxic. Refer to Annexure: 5

3.2.18. During installation, remove watches, rings, and other metal objects.

3.2.19. Use a tool with insulated handles.

3.2.20. Wear rubber gloves and boots.

3.2.21. Do not leave tools or metal parts on top of batteries.

3.2.22. Disconnect the charging source before connecting the batteries.

3.2.23. Determine if the battery is inadvertently grounded. If inadvertently grounded, remove the unwanted ground source. Any contact with grounded batteries may result in electric shocks. The likelihood of shocks will be reduced if grounds are removed during installation and maintenance.

3.2.24. After the installation of UPS, the Engineer-in-charge shall check the complete works and complete the Inspection checklist for UPS installation works. (See annex. 1 )

3.2.25. Engineer-in-charge shall arrange and request for inspection with the Owner’s representative M&E Residential Technical Officer (RTO) using the approved Main con Request for Inspection (RIN) form.

3.3. Testing and Commissioning

3.1.1. Check the power quality of the UPS output.

3.1.2. Check whether the harmonics are within the limit

3.1.3. Check the transfer time.

3.1.4. Check the sine wave composition.

3.1.5. Check battery voltage and internal resistance of each cell, including inter-cell and inter-tier connectors.

3.1.6. Check the temperature of the battery.

3.1.7. Check the currents and discharge events.

3.1.8. Check the individual cell voltage.

3.1.9. Check to verify that the UPS systems are performing to manufacturer specifications.

3.4. Preferred Brands

2.0. Health & Safety risks and controls

(Please refer to the attached Risk assessment concerning the above scope of works – Annex.3)

3.0. Access / Egress

The person in charge of the work will ensure that he and all operatives under his supervision are familiar with the correct access and procedures to the place of work. The correct access and egress procedure will be adhered to at all times.

4.0. Lighting

Adequate temporary/task lighting shall be provided if work is to be carried out at night or in dark places.

5.0. Plant & Equipment

· Hand Tools

· Power Tools (if required)

· Electrical drill (only for surface installation works)

· Diagonal-Cutting Pliers

· Wire Stripper/Cutter with Spring

· Side-Cutting Pliers

· Shank Screwdriver/Flat screwdriver

· Compression lug crimp tool

· Cable to service bypass panel from system feeder

· Cable to UPS input from service bypass panel

· Cable to UPS input from external batteries

· Necessary conduit for above-listed cabling

· Knock-out set (for conduit)

· P.P.E. – Personal Protective Equipment (safety helmet, Boots, gloves & safety vest )

6.0. Personnel Training Certificate

(Annexure 4)

7.0. Hazardous Materials & Substances

(Refer Annexure: 5)

8.0. Waste management

The Rubbish which would be created from our scope of work will be disposed of at the designated dumping ground.

9.0. Special Control measures

· The following general control measures against Safety, Environment, and Quality shall be required for our scope of work and special control measures do not apply to us

· Proper PPE must be worn at all times

· Permit to work at height > 2 meters where applicable

· Lifting operation permit (using a crane) where applicable.

· Confined space permit where applicable.

· Approved work method statement and risk assessment will be made available to the site. All workers doing the work shall be briefed on this method statement and risk assessment.

10.0. Appendix


Inspection Checklist




Project Organisation for Health & Safety Control


Risk Assessment


Personnel Training Certificate

ANNEX 5: MSDS for UPS Battery

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