Common use of Substation Clause in Contracts

Substation. The power substation at 21KV - medium voltage - is serviced by the Eletropaulo distributor. Through transformers in N+N configuration, the voltage is lowered to 480V that internally and independently feed the air-conditioning system and UPS systems. The total system capacity is 9MVA. TECHNICAL PROPOSAL UOLDIVEO-OPT-17/21629-A The electrical network available for the equipment at 208VAC is composed of circuits segmented by sectored boards that distribute power to the plug strips for each rack or equipment. Each circuit is individually protected by a circuit breaker and short-circuit detector. Each floor of the Data Center has two 1,000 kVA nobreak lines, also known as a UPS, in the N+1 configuration per line. The UPSs have redundant battery banks with 12-minute autonomy at full load. Each UPS set feeds, in cross-configuration, two static switches that in turn feed each of the two busways of power to the floor. This scheme allows for maintenance on any of the lines without the servers stopping. The power continuity in the DC is guaranteed by 4 3MVA generators each configured in an N+1 system. Feeding the generators, there are tanks holding a total of 34,000 liters of diesel. For the predictive and preventive maintenance of Data Center systems, it is possible to install a Load Bank that makes it feasible, in a simple and economical way, to carry out these tests, certifying the reliability of the system. The Glete UOLDIVEO Data Center air-conditioning system features a dual-ring, redundant cold water architecture, fed by a set of air cooled Chillers in N+1 configuration. The ring feeds the precision Fan-Coils with cold water located on each floor. This architecture allows the maintenance on pipes and equipment to be carried out without interrupting the functioning of the air conditioning for the floors. The temperature and humidity control of the floors is automatic, controlled and monitored by the manufacturer’s own cooling system and is integrated with the BMS. • The system is composed of 6 Air cooled Chillers of 350TR configured in N+1 redundancy, totaling a cooling capacity of 1750TR (21,000,000 BTU); • Each floor, in maximum configuration, has 10 Fan-Coils of 36TR each, in configuration N+2, totaling 288TR (3,456,000 BTU). The redundancy allows the maintenance of up to two pieces of equipment without adversely affecting the temperature and humidity on the floor; TECHNICAL PROPOSAL UOLDIVEO-OPT-17/21629-A • The temperature and relative humidity of the air are automatically controlled by the precision Fan-coils, where sensors detect the temperature and return humidity, adjusting their operation accordingly; • An integrated Fan-Coil balancing system allows full balance and precise control of temperature and humidity, even with unevenly distributed loads; • The temperature is maintained at 21ºC (± 3ºC), according to modern standards for IT equipment; • Air humidity is maintained at 50% (± 15%), according to modern standards for IT equipment.

Substation. The power substation at 21KV - medium voltage - is serviced by the Eletropaulo distributor. Through transformers in N+N configuration, the voltage is lowered to 480V that internally and independently feed the air-conditioning system and UPS systems. The total system capacity is 9MVA. TECHNICAL PROPOSAL UOLDIVEO-OPT-17/21629-A Electrical Distribution: The electrical network available for the equipment at 208VAC is composed of circuits segmented by sectored boards that distribute power to the plug strips for each rack or equipment. Each circuit is individually protected by a circuit breaker and short-circuit detector. Nobreak System: Each floor of the Data Center has two 1,000 kVA nobreak lines, also known as a UPS, in the N+1 configuration per line. The UPSs have redundant battery banks with 12-minute autonomy at full load. Each UPS set feeds, in cross-configuration, two static switches that in turn feed each of the two busways of power to the floor. This scheme allows for maintenance on any of the lines without the servers stopping. Generator Engine Group: The power continuity in the DC is guaranteed by 4 3MVA 43MVA generators each configured in an N+1 system. Feeding the generators, there are tanks holding a total of 34,000 liters of diesel. EXECUTION VERSION Load Bank: For the predictive and preventive maintenance of Data Center systems, it is possible to install a Load Bank that makes it feasible, in a simple and economical way, to carry out these tests, certifying the reliability of the system. Cooling System: The UOLDIVEO Glete UOLDIVEO Data Center air-conditioning system features a dual-ring, redundant cold water architecture, fed by a set of air cooled Chillers in N+1 configuration. The ring feeds the precision Fan-Coils with cold water located on each floor. This architecture allows the maintenance on pipes and equipment to be carried out without interrupting the functioning of the air conditioning for the floors. The temperature and humidity control of the floors is automatic, controlled and monitored by the manufacturer’s own cooling system and is integrated with the BMS. • ○ The system is composed of 6 Air cooled Chillers of 350TR configured in N+1 redundancy, totaling a cooling capacity of 1750TR (21,000,000 BTU); • ○ Each floor, in maximum configuration, has 10 Fan-Coils of 36TR each, in configuration N+2, totaling 288TR (3,456,000 BTU). The redundancy allows the maintenance of up to two pieces of equipment without adversely affecting the temperature and humidity on the floor; TECHNICAL PROPOSAL UOLDIVEO-OPT-17/21629-A • ○ The temperature and relative humidity of the air are automatically controlled by the precision Fan-coils, where sensors detect the temperature and return humidity, adjusting their operation accordingly; • ○ An integrated Fan-Coil balancing system allows full balance and precise control of temperature and humidity, even with unevenly distributed loads; • ○ The temperature is maintained at 21ºC (± 3ºC), according to modern standards for IT equipment; • ○ Air humidity is maintained at 50% (± 15%), according to modern standards for IT equipment.