Electrical Tests. The electrical tests apply to qualification of the automatic shut-off valve; they do not apply to qualification of check valves.
Electrical Tests. A total minimum of [***] will be tested. [***].
Electrical Tests. 1) Tests shall comply with engineered plans and specifications.
2) Tests shall be performed in accordance with manufacturer recommendations or nationally recognized standards and practices.
Electrical Tests. 1) Tests shall comply with engineered plans and specifications.
2) Tests shall be performed in accordance with manufacturer recommendations or nationally recognized standards and practices.
3) Perform insulation resistance test on each conductor. Test phase-to-phase and phase-to-ground.
4) Perform dc high-potential test on each conductor. Test phase-to-phase and phase-to-ground.
Electrical Tests. 1) Tests shall comply with engineered plans and specifications.
2) Tests shall be performed in accordance with manufacturers’ recommendations or nationally recognized standards and practices.
3) Test grounded conductor insulation resistance and verify continuity of equipment grounding system.
4) Perform insulation resistance test on each bus and protective device. Test phase-to-phase and phase-to- ground.
5) Perform dielectric voltage-withstand test on each bus and protective device. Test phase-to-phase and phase- to-ground.
6) Perform phase test on double-ended systems.
7) Test control power transformer, control power circuits and potential circuits.
8) Test control and protective devices for proper operation.
Electrical Tests. 1. Measure insulation resistance of each bus run phase-to-phase and phase-to-ground for one (1) minute.
Electrical Tests. 1. Perform a contact-resistance test.
2. Perform an insulation-resistance test at 1000 volts dc from pole-to-pole and from each pole-to-ground with breaker closed and across open contacts of each phase.
3. Perform an insulation-resistance test at 1000 volts dc on all control wiring. Do not perform the test on wiring connected to solid state components.
4. Make adjustments for final settings in accordance with the coordination study.
5. Determine minimum pickup current by primary current injection.
6. Determine long-time delay by primary current injection.
7. Determine short-time pickup and delay by primary current injection.
8. Determine ground-fault pickup and delay by primary current injection.
9. Determine instantaneous pickup value by primary current injection.
Electrical Tests. 1. Perform a shield-continuity test on each power cable. Ohmic value shall be recorded.
2. Perform an insulation-resistance test utilizing a megohmmeter with a voltage output of at least 1000 volts. Individually test each conductor with all other conductors and xxxxxxx grounded. Test duration shall be one (1) minute.
3. Perform a dc high-potential test on all cables. Adhere to all precautions and limits as specified in the applicable NEMA/ICEA Standard for the specific cable. Perform tests in accordance with ANSI/IEEE Standard 400. Test procedure shall be as follows, and the results for each cable test shall be recorded as specified herein. Test voltages shall not exceed 60% of cable manufacturer’s factory test value. The maintenance test value must be derived based on insulation type, manufacture and age of cable. Test value will be submitted to the owner for their review.
1. Record relative humidity and temperature.
2. Test each section of cable individually.
3. Individually test each conductor with all other conductors grounded. Ground all xxxxxxx.
4. Terminations shall be properly corona-suppressed by guard ring, field reduction sphere, or other suitable methods.
5. Insure that the maximum test voltage does not exceed the limits for terminators specified in IEEE Standard 48 or manufacturer’s specifications.
6. Apply a dc high-potential test in at least five equal increments until maximum test voltage is reached. No increment shall exceed the voltage rating of the cable. Record dc leakage current at each step after a constant stabilization time consistent with system charging current.
7. Raise the conductor to the specified maximum test voltage and hold for a minimum of five minutes. Record readings of leakage current at 30 seconds and one (1) minute and at one (1) minute intervals thereafter.
8. Reduce the conductor test potential to zero and measure residual voltage at discrete intervals.
9. Apply grounds for a time period adequate to drain all insulation stored charge. Proper notification must be made to all concerned parties if grounds are left in place.
Electrical Tests. 1. Perform insulation-resistance tests phase-to-phase and phase-to-ground with switch in both source positions.
2. Perform contact-resistance tests or millivolt drop tests.
3. Verify settings and operation of control devices.
4. Perform automatic transfer and retransfer tests.
Electrical Tests. 3.7.1 The Contractor shall test and ensure that the new equipment installed linked to existing electrical panels shall be in good condition and does not trip the building. The following tests shall also be carried out in full compliance with the Local Codes and Regulation by the Contractor in the presence of the Superintending Officer.
a) Insulation resistance test of all power, control cables and all motor windings
b) Test of conductor continuity
c) Test of Effectiveness of earthing
d) Operation of thermal overload relays and starters e) Operation Sequence Test
