For the purposes of this tender, the preventative maintenance will take place on a quarterly basis for the generators, distribution boards, and UPS. All maintenance services must comply with the Occupational and Health Safety Act 85 0f 1993. 4.1.1 Maintenance of distribution boards include, but are not limited to the following: Service pension sub main LT distribution boards Service chemical sub main LT distribution boards Check trip settings of all main circuit breakers Check that all cable connections are secure Check for signs of overheating Check for hot spots using laser heat detector Check labels, signs, notices as required by legislation Record voltages, verify balancing of phase currents Verify and record earth loop impedance Measure value of earth resistance at the main earth bars Clean Main LT switch rooms. This work which is carried out 4 times a year will be done after hours during a weekend, when a planned shutdown of the electrical installation can be accommodated. 4.1.2 Maintenance of generators Generator sets installed at the GPAA have 300 and 400kVA diesel capacity. The GEPF generator has a 250kVA diesel capacity. The quarterly service charge for scheduled maintenance include the following: Labour as may be required • Travelling distance cost • Travelling time cost • Overhead costs • Consumables and cleaning materials • Lubricating materials excluding engine oil • Test equipment • Disposal of used and replaced materials • Maintenance •
For the purposes of this tender, the preventative maintenance will take place on a quarterly basis for the generators, distribution boards, and UPS. All maintenance services must comply with the Occupational and Health Safety Act 85 0f 1993. 4.1.1 Maintenance of distribution boards include, but are not limited to the following: Service pension sub main LT distribution boards Service chemical sub main LT distribution boards Check trip settings of all main circuit breakers Check that all cable connections are secure Check for signs of overheating Check for hot spots using laser heat detector Check labels, signs, notices as required by legislation Record voltages, verify balancing of phase currents Verify and record earth loop impedance Measure value of earth resistance at the main earth bars Clean Main LT switch rooms. This work which is carried out 4 times a year will be done after hours during a weekend, when a planned shutdown of the electrical installation can be accommodated. 4.1.2 Maintenance of generators Generator sets installed at the GPAA have 300 and 400kVA diesel capacity. The GEPF generator has a 250kVA diesel capacity. The quarterly service charge for scheduled maintenance include the following: • Labour as may be required • Travelling distance cost • Travelling time cost • Overhead costs • Consumables and cleaning materials • Lubricating materials excluding engine oil • Test equipment • Disposal of used and replaced materials • Maintenance
RFP_-_installation_and_maintenanace_of_electrical_infrastructure_-_bid_GPAA_07_2017.docx