3. Branch circuits be as short as practical to minimize leakage currents. 4. Identical receptacle poles shall be connected to the same isolation transformer terminal. 5. Install the branch circuit wiring in steel conduit or electrical metallic tubing. Do not use wire lubricating compound on branch circuits connected to an isolated power system. C. Install a printed schedule of circuits in each IPU after approval by the //Resident Engineer// //COR//. Schedules shall reflect final load descriptions connected to each circuit breaker. 3.2 A. Once the isolated power systems and all branch circuits and control wiring have been completely installed, furnish factory-certified test equipment and perform the following tests in the presence of the // Resident Engineer// //COR//. An authorized representative of the manufacturer shall perform acceptance checks and tests. B. Perform manufacturer’s required tests in accordance with the manufacturer's recommendations. In addition, include the following: 1. Test to verify that wiring is properly connected and clear of ground faults, shorts, and open circuits. 2. Test to verify that isolated power systems are operating properly. 3. Tests: a. Perform a calibration test on each of the micro-ammeters. The tests shall be accurate within 3%. b. With all of the circuit breakers closed and without any equipment plugged into the receptacles, read and record the inherent total leakage current indicated by the micro-ammeter. The leakage currents shall be small enough to indicate that all of the equipment and circuits are satisfactory for proper operation of the equipment. c. With an electrical test, demonstrate that identical poles of power receptacles for each of the isolated power systems are connected to the same terminal of the isolation transformer. d. Demonstrate that either terminal of each of the isolation transformers, when shorted to ground in one of the power receptacles, will activate the line isolation monitor alarm without tripping the circuit breaker.
3. Branch circuits be as short as practical to minimize leakage currents. 4. Identical receptacle poles shall be connected to the same isolation transformer terminal. 5. Install the branch circuit wiring in steel conduit or electrical metallic tubing. Do not use wire lubricating compound on branch circuits connected to an isolated power system. C. Install a printed schedule of circuits in each IPU after approval by the //Resident Engineer// //COR//. Schedules shall reflect final load descriptions connected to each circuit breaker. 3.2 A. Once the isolated power systems and all branch circuits and control wiring have been completely installed, furnish factory-certified test equipment and perform the following tests in the presence of the // Resident Engineer// //COR//. An authorized representative of the manufacturer shall perform acceptance checks and tests. B. Perform manufacturer’s required tests in accordance with the manufacturer's recommendations. In addition, include the following: 1. Test to verify that wiring is properly connected and clear of ground faults, shorts, and open circuits. 2. Test to verify that isolated power systems are operating properly. 3. Tests: a. Perform a calibration test on each of the micro-ammeters. The tests shall be accurate within 3%. b. With all of the circuit breakers closed and without any equipment plugged into the receptacles, read and record the inherent total leakage current indicated by the micro-ammeter. The leakage currents shall be small enough to indicate that all of the equipment and circuits are satisfactory for proper operation of the equipment. c. With an electrical test, demonstrate that identical poles of power receptacles for each of the isolated power systems are connected to the same terminal of the isolation transformer. d. Demonstrate that either terminal of each of the isolation transformers, when shorted to ground in one of the power receptacles, will activate the line isolation monitor alarm without tripping the circuit breaker.