Installing an Uninterruptible Power Supply (UPS) is a critical step in safeguarding your electronic equipment against power disruptions. After installing your Uninterruptible Power Supply (UPS), it’s crucial to conduct thorough testing to verify its functionality and readiness to support your critical devices during power outages.
UNINTERRUPTIBLE POWER SUPPLY UPS INSTALLATION AND TESTING
Following are summarized points for Uninterruptible Power Supply (UPS), Battery and Charger Installation.
- Equipment, racks panels and its components shall be carefully installed considering all requirements.
- Install Uninterruptible Power Supply (UPS) as per vendor’s procedure and data provided for the specific equipment.
- A work space of 1 meter shall be allowed in the front of the UPS cabinets. If rear access is required for UPS maintenance, a clearance of 1 m shall be allowed as needed.
- UPS System shall be located in a temperature controlled room in which the temperature is maintained at <= 25°C. Redundant AC systems are preferred at the time for continuous and reliable operation.
- Cables for the primary AC input, output and the alternate AC source shall be run separate raceways.
- Assemble battery racks, batteries, and battery switch as per equipment vendor’s procedure and data provided for the specific equipment.
- Position the battery cells on the assembled rack and mount in accordance with vendor’s recommended instruction. Exercise care not to damage cells during lifting operations. Battery cells shall be lifted by the bottom not by the terminals. Ensure that polarity are properly oriented and connected as intended.
- Install the bottom plate racks for the substation floor opening as per design engineering company latest Issued for Construction (IFC) Drawings.
- Glanding plate boring for cable entry shall be in accordance to the cable sizes.
- Install and arrange cable through conduit from battery bank to battery switch and from switch to battery cabinet.
- Functional test shall be conducted.
- Cable glanding and dressing shall be executed properly and proper terminal lugs shall be installed as per latest Issued for Construction (IFC) Drawings.
- Connect all cabling and termination to the system as per Latest Single Line Diagram and latest Issued for Construction (IFC) Drawings. Tighten all the bolted connection using appropriate tools and marked with visual indicator.
- Connect all grounding connections to grounding system as per latest Issued for Construction (IFC) drawings.
- Final interconnection shall be checked to ensure tightness and polarity. Check alignment and plumbness of the equipment together with its structure.
- Completed installation of UPS and battery shall be preliminary inspected and panels shall be opened for cleanliness to ensure no foreign bodies are present. Dust and dirt shall be removed by using appropriate vacuum cleaner or rags prior to filling of electrolytes to the battery cells as per equipment vendor’s procedure and data provided for the equipment. Battery cells shall be filled-up to the correct line specified by the equipment vendor. Make sure that the cells are clean and free from leakage.
- Identifications, nameplates and warning signs shall be properly installed accordingly as per engineering design company latest Issued for Construction (IFC) Drawings.
- Any changes shall be incorporated in the “As-Built” drawings.
Uninterruptible Power Supply (UPS), Battery and Charger Test
Continuity and insulation resistance testing shall be conducted prior to cable termination.
Testing of Uninterruptible Power Supply (UPS), Battery and Charger shall be complied to SAES-P-103 UPS and DC Systems.
SAFETY PRECAUTION UPS INSTALLATION AND TESTING
- Secure the approved work permit from the concerned Representative before starting any work.
- Fire Watcher with Fire Extinguisher shall be assigned at work area whenever there is hot work.
- All electrical tools shall be checked and color-coded.
- Hazardous area and its precautionary measure requirements shall be properly discussed to the working crew following all safety requirements.
- Continuous monitoring and checking shall be conducted by concerned supervisor/foreman to detect and correct unsafe practices while performing the work activities.
- Provide warning sign and sufficient barricade on working areas to avoid unauthorized entry. Only assigned personnel shall be allowed in the area.
- Safety harness with double lanyards shall be used when working at elevated temporary platforms (1.8 meters and above).
- Safety Supervisor shall monitor the work activities to help and protect all assigned workers against exposure to safety hazards. He shall ensure that Personal Protective Equipments (PPE’s) are being supplied and used and shall comply with Company and Saudi Aramco applicable general instruction and standards.
- Toolbox meeting shall be conducted by Electrical Supervisor daily so that work activities will be properly coordinated to all concerned and all safety measures will be carried out on the entire work duration.
- Housekeeping shall be maintained and working area shall be kept clean and tidy in accordance with Site Housekeeping Procedure.
- Job Hazard and Risk Assessment of this procedure shall be disseminated and explained to workers for safety awareness.
Tools and Equipment used in UPS Installation
Tools and equipment needed should be in good condition and must be checked by Supervisor / Safety Engineer prior to use in the construction area. These includes but not limited to:
- Boom Truck.
- Electrical Hand Tools.
- Welding Machine.
- Mobile Crane.
- Hydraulic Pallet Jack.
- Spirit Level.
- Torque Wrench.
- Common Hand Tools.
- Measuring tape.
All tools utilized in a classified area should be intrinsically safe and suitable for hazardous areas.