Central Power Research Institute STDS, Govindpura, Bhopal-462 023 TEST FEASIBILITY FOR VARIOUS S Sl. 1 H.V. Circuit Breaker & Switchgear Panel with Circuit Breaker 2 H.T. Switches/ Line Sectionalizer/ Capacitor Switch/ Load Break Switch - Short circuit current making and breaking IS:13118 /IEC Pub. 56, IEC-62271-100, Test upto 50kArms at 12kV, Sheet 1 of 10 11kArms at 24kV, 16.0kArms at IS: 12729, 36kV. - Capacitive current IEC:62271-1, Test upto 400A, 3 at 12kV, switching IEC; 62271-110, 1200A, 1 at 12kV & 15kV. - Cable/Line Charging IS:3427, Test upto 400A, 3 at 12kV, Current Breaking Test. 1200A, 1 at 12kV & 15kV. - Short time withstand IS:14659, Test upto 200kArms for 1.0 current & peak IEC:62271-201, second with 565kApeak withstand IEC-60529, current IS:12063, - Dielectric tests (wet/dry). IEC /TR 62271-308, - Mechanical operation IEC 62271-200, Upto 10,000 operations test at ambient air IEC 62271-202 temperature. BS 6581 - Lightning Impulse Test upto 132kV class voltage withstand test - Temperature rise test Test upto 25,000 Amps the Upto 100 millivolt at 100Adc resistance of the main circuit. - Out-of-phase making & Test upto 50kArms at 12kV, breaking capacity 11.0kArms at 24kV, 16.0kArms at 36kV. Test upto 6.6kV& 3.3kV at 100 & 300 Amps - Inductive load Current switching - Internal arc Upto 50 karms at 12 kv, 11.0 karms at 24kV, 16.0kArms at 36kV for 0.2 second. - Test to verify the degrees of protection of enclosure - Rated short circuit making capacity - Rated making and breaking capacity - Short time withstand current and peak withstand current - Single capacitor bank switching - Dielectric tests (Wet & Dry) - Lightning Impulse Voltage withstand test - Mechanical endurance test IS:9920-1/ IEC:60265-1, IS:9920-2/ IEC:60265-2, IS:9920-3, IS:9920-4, IEC 62271-1, IEC:62271-103 IP-1X to 6X and IP-X1 to X6. Test upto 125kApeak at 12kV, 27.5kApeak at 24kV, 40.0kApeak at 36kV. Upto 630Amps at 12kV (3 ). Upto 800Amps at 27.5kV (1 ). 200kArrns for 1 sec. with 565kApeak Test upto 400A, 3 at 12kV, 1200A, 1 at 12kV & 15kV. Upto 1,000 operations. - Temperature rise test Test upto 10000Amps. the Upto 100 millivolt at 100Adc. resistance of the main circuit.
3 Isolators and Earthing Switches - Short time withstand current and peak withstand current. - Dielectric tests (wet & dry) - Mechanical endurance test IS:9921-1, IS:9921-2 & 3, IS:9921-4 & 5, IEC 62271-102. Sheet 2 of 10 Test upto 200kArms for 1.0 second with 565kA peak upto 33 kv class; upto 80kArms for 3.0 seconds with 200 ka peak for above 33 kv class. Test upto 132 kv class Upto 1,000 operations. - Temperature rise test Tests upto 6300 Amps the Upto 100 milli Volt at 100 A DC. resistance of the main circuit - Lightning Impulse Test upto 132 kv class voltage withstand test - Partial Discharge test Test upto 100 kv, 50 Hz. 4 Surge Arrestors - Short circuit tests. IS:3070-1, IS:3070-3, IEC:60099-1, IEC:60099-4, IEC:60099-5 5 H.T. Fuses/ Distribution Fuse Boards and Cut outs - Short circuit breaking capacity test IS: 9385-1, IS:9385-2, IS:9385-3, IS: 9385-4, Test upto: 50 karms at 12kV, 11 karms at 24kV, For high Current test & low Current Test upto: 50 karms at 12 kv, 11 karms at 24 kv, 16 karms at 36 kv. - Dielectric Test upto 132 kv class IEC: 60282-1, - Temperature rise Test. IEC: 60282-2, Test upto 630 Amps. - Test for time current characteristics. IS: 2675, IS:13947 (Part-1), Test upto 100kA. - Power dissipation Test. IEC:60947-1, IS:12063,1, Upto 110 Watts. - Creepage and Clearance IEC60529 Upto 33kV. test - Test to verify the degrees of protection. 6 Line Traps Short time current IS: 8792, IS: 8793, IEC:60353 IP-1X to 6X and IP-X1 to X6 12 kv, 50 kamps for 0.2Sec. 7 Motor Terminal Box - Through fault current CPRI Document Upto 200kArms for 1.0 Sec. TOP-01. - Internal fault current Upto 50 karms for 0.2 Sec. at 12 kv, upto 11kArms for 0.2 Sec. at 24 kv, 16kArms for 0.2 Sec. at 36 kv 8 Spacers for Bundle Conductor. - Fault current IS: 10162, CPRI Document TOP-01. Upto 50 karms for 0.1 Sec. 9 Insulator strings - Power Arc tests. CPRI Document TOP-01. 10 HT Contactor - Rated making and Breaking Capacity IS: 9046, IEC: 60470, IS:5561 50 karms at 12 kv 11 karms at 24 kv 16 karms at 36 kv Test upto 4 karms at 12kV. - Dielectric tests. Test upto l32kv Class. - Mechanical endurance Upto 12kV Class. - Temperature rise Test upto 25000 Amps with driving voltage of 40 Volts. - Dimensional Check. Upto 12kV Class. - Visual Examination. Upto 12kV Class. - Short time current Test. Upto 200 karms for 1 Second with 565kApk.
11 Power & Distribution Transformers, Traction Transformers, Inductors And Dry type Power transformers winding resistance. voltage ratio and check of voltage vector relationship. impedance voltage/short circuit Impedance and load loss. no-load loss and current. Insulation resistance. IS:2026-1, IS:2026-2, IS:2026-3, IS:2026-4, IEC:60076-1, IEC:60076-2, IEC:60076-3, IEC:60076-4, IEC:60076-5, IS:1180-1, IS:1180-2, IEEE C 57.12.00, IEEE C57.12.90, IS: 11171, IEC: 60076-11, IEC:60310, Upto 300 ohms. Ratio upto 400 Sheet 3 of 10 Test upto 40 MVA, 132/33 kv class Test upto 40 MVA, 132/33 kv class Upto 10 G at 5kV. - Dielectric tests. Test upto 20 MVA, 66kV Class - Lightning Impulse Voltage withstand Test. - Temperature rise Test upto 5 MVA, 66kV class; 10 MV A, 33/11kV Class Upto 25 MVA, 66kV class - Short circuit tests. Upto 60 MVA, 220 kv class subject to impedance of Transformer - Induced over voltage - Partial Discharge 100kV Measurement - Air Pressure test IS: 1180 (Part-1&2) 100 kva - Permissible flux density & over fluxing 12 Autoreclosures - Test to prove mechanical operation 1 13 Bus ducts, panels. MCB boards. Distribution pillars, distribution fuse boards and cut out etc. 14 Neutral Grounding Resistor units IS: 1180 (Part- 1 & 2) IS: 7567, ANSI/IEEE C-37.60 IS:13118, IS: 12729 Test upto 1000 Volts, 200Hz, 66 kv, 120 Hz. 100kVA Upto 36kV Class. - Temperature rise Test upto 400 Amps. - Operating Duty Upto 50kArms at l2kv, 11kArms at 24kV, - Short time current Test. 200 karms for 1.0 Sec. with 565 kapeak. - Verification of the short circuit withstand strength IS 8623-I/IEC439-I, IS 8623-2/IEC439-2, lec 61439-1, Test upto 200kArms for 1 sec. with 565 kapk. - Short time current test lec 61439-2, Test upto 100kArms for 3 sec. IEC 61439-5 with 250 kapk. - High voltage power lec 61439-6 Upto 132 kv class. frequency test IS 8084, - Temperature rise test IS 13032, Upto 25kA, 3 phase 40V. IS 5039, - Degree of protection IS 2675, IP IX to 6X & IP XI to X6. - Lightning impulse test IS 12063, - Verification of clearances and creepage distance - Verification of mechanical operation - Internal Arc Tests IS 13947 (Part-I), IS 4691, lec 60529, lec 60947-1, IS 2147, IS 12063, IEC/TR 61641. 50 operations. 200 karms for 1.0 Sec. with 565 kapeak. - Short Time Current test/ CPRI document Upto 200 karms for 1.0 sec. Temp. rise test TOP-01
Sheet 4 of 10 Sl. 15 Current Transformer - Short time current IS:2705 (Part -1), IS:2705 (Part-2 to 4), IEC: 61869-1, Upto 200 karms for 1 Sec. with 565 kapeak subject to impedance of current Transformer. - Transient response IEC: 61869-2, - Temperature rise Test upto 25,000 Amps. - Lightning impulse voltage withstand - High voltage power frequency test (dry and wet). - Determination of errors Test upto 10,000 A/1A and 5Amps. and other characteristics. - Terminal marking and polarity. - Over voltage interturn - Composite error measurement - Turn ratio measurement - Secondary winding resistance measurement - Knee point voltage and excitation current measurement - Instrument security current Partial Discharge 16 Voltage transformers - Short circuit withstand capability - Voltage Error and Phase Displacement Measurement Test - Terminal marking & Polarity - Lightning impulse voltage withstand test - High voltage power frequency test (Dry and Wet) - Temperature Rise Test - Induced Voltage Withstand Test. Partial Discharge 17 Reactors winding resistance. impedance voltage/short circuit impedance. insulation resistance. IS: 3156 (Part-1), IS: 3156 (Part-2 & 3), IEC: 61869-1 IEC: 61869-3 IS:5553-2, IS:5553-3, IS:5553-4, IS:5553-6, IS:5553-8, IEC:60076-6. Test upto 100 kv, 50 Hz. Test upto 1, 132/ 3kV, 3, 33kV. Test upto 132kV class Test upto 132 kv class. Test upto 132 kv class. Upto 33 kv, 3-phase Test upto 1000 V, 200Hz Test upto 100 kv. Upto 300 ohms. Upto 2 MVAr, 11kV. Upto 10 G at 5 kv. - Dielectric tests. Test upto 132kV Class (PF) - Short time withstand current - Lightning impulse voltage withstand - Temperature Rise Test 100Amps. 200kArms for 1.0 sec. with 565 ka peak, subjected to impedance of reactors. Test upto 132kV Class.
2 18 ON load Tap Changer 1 19 Cables, joints and terminations of polymeric cables 20 Bushing, power connectors, Insulators 21 LV fuses, fuse holders/base, Rewirable type fuses, fuses (cutouts) Auxil1iary terminal blocks & interconnecting units, cartridge fuses, D type (AC/DC) fuses, semiconductor fuses, fuses with enclosure Sheet 5 of 10 1 High voltage test IS 8468, Upto 132 kv class 2 Temperature rise test lec 60214-1, Upto 25kA, 3 ph. 3 Short circuit tests IEC:60214-2, 200kArms for 1 sec. with 565 kapk 4 Switching Test lec 60542, Upto 300kV, 700A 5 Mechanical test IS 13947 (Part-I), lec 60947-1 6 Insulation test IS 12063, 7 Lightning impulse test lec 60529. 8 Mechanical endurance 9 Degree of protection IP 1X to 6X & IP X1 to X6 1 Dynamic & thermal short IS 13573, Test upto 200kArms for 1 sec. With circuit test IS 1554 (Part- 1& 2), 565 kapk. IS 5819, 2 Lightning Impulse test Upto 132 kv class. IS 7098 (Part-I), 3 Dielectric test IS 7098 (Part-2), CPRI 100 kv class. 4 Conductor resistance test Document TOP-02 Upto 300. 5 Insulation resistance meas. Upto 10G at 5kV. 1 Short time current test IS 2099, 2 HV power frequency test Lightning impulse test 3 Temperature rise test 4 Visual inspection 5 Electrical routine test 6 Verification of dimensions 7 Puncture test IS 7421, IS 5561, IS 5621, IS 2544, IS 731, lec 60273 1 Breaking capacity tests** IS 13703 (Part-1), Performance under short 2 circuit conditions** Cut-off current 3 characteristics* * 4 I2 t characteristics and over current discrimination** Mechanical strength of 5 fuse holder Verification of resistance 6 To heat Non-deterioration of insulating parts of fuse 7 links, fuse base and contacts Protection against 8 electric shock 9 Temperature rise test IS 13703 (Part-2/Sec.1), IS 13703 (Part-2/Sec.2), IS 2086, BS 88 (Part-I), BS 1361, BS 7657, IS 8187, IS 13703 (Part-4), IEC 60269-1, IEC 60269-2, IEC 60269-3, IEC 60269-4, IS 10027, IS 10027, IS 13947(Part-I), IEC 60947-1. IS 9926. 100 karms for 3 secs. with 250kApk. Upto 132kV class Upto 25kA, 3 ph. with driving voltage of 40V, Upto 132 kv class. **Range- Test upto 200kArms at 1.1 kv and upto 80 ka d.c at 1.55 kvd.c. # 100kArms at 550V and upto 80kA Upto 1250A, 1000V Upto 1250A, 1000V Upto 1250A, 1000V Upto 1250A, 1000V Upto 25kA, 3 ph. with driving voltage of 40V. 10 Degree of protection IP1X to 6X & IPX1 tox6 Time current Upto 1250A, 1000V rating. 11 characteristics** Conventional time and 100kArms at 550V and upto 12 current** 80kArms a 13 Visual examination Upto 100Amps, 415V. 14 Test for dimensions Upto 100Amps, 415V. 15 Mechanical endurance Upto 100Amps, 415V. 16 Mechanical strength Upto 100Amps, 415V. 17 Withdrawal force Upto 100Amps, 415V. 18 Insulation resistance Upto 2000M, 500V. 19 Dielectric test Upto 10kV. 20 Electrical endurance** -- Test for water absorption 21 (Non ceramic) Upto 100Amps, 415V. Test for water absorption on 22 ceramic material Upto 100Amps, 415V. 23 Temperature cycle test Upto 100Amps, 415V. 24 Verification of the continuity of the protective circuit
22 L V Switchgear and Control gear Sheet 6 of 10 1 Making & breaking IS/IEC 60947-1, Range - 100kA for 3 secs. Capacity IS/IEC 60947-2, 550V, 80 ka for 3 secs. 726V 2 Short circuit making IS/IEC 60947-3, Capacity IS/IEC 60947-4-1, Upto 200 ka for 1 sec. with 565 3 Short time withstand current IS/IEC 60947-5-1, kapk at 1.1 kv and upto 80 kadc lec 60947-1, at 1.55 kvdc. 4 Fuse protected short lec 60947-2, circuit withstand lec 60947-3, lec 60947-4-1, 5 Fuse protected short circuit lec 60947-4-2, making lec 60947-5-1, 6 Rated service short circuit lec 60947-6-1, breaking capacity lec 60947-7-1, 7 Rated ultimate short circuit IS/IEC 60898-1, breaking capacity IS/IEC 60898-2, Rated short time withstand lec 60898-1, 8 current IEC:60898-2, 9 Short circuit Breaking IS 12640 (Part-I), capacity at Maximum short IS 12640 (Part-2), time withstand current IS3427,/IEC:298 lec 61008-1, 10 Short circuit at selectivity limit lec 61008-2-1, current. * lec 61008-2-2, 11 Short circuit at 1.1 times lec 61009-1, protective current* lec 61009-2-1, lec 61009-2-2, 12 Short circuit at ultimate short IS 10027, circuit breaking capacity* lec 60755, IS 13032, 13 Individual pole short lec 60695-2-1/0, circuit breaking capacity* IS 14659, 14 Switching duty test* lec 60466, 15 Verification of rated IS 9000(Part-VIII) making and breaking capacities, change over ability and reversibility* 16 Discrimination between SCPD and overload relay* 17 Verification of conventional Operational performance * 18 Performance under short circuit conditions* 19 Verification of ability to withstand overload current* 20 Performance at reduced short circuit currents* 21 Conditional short Circuit current* 22 Verification of rated making and breaking capacity* 23 Verification of the Rated residual making and breaking capacity* 24 Verification of the coordination at the rated making and breaking capacity* 25 Verification of the coordination at rated conditional residual short circuit current* 26 Verification of the coordination at rated conditional residual short circuit current*
L V Switchgear and Control gear Sheet 7 of 10 27 Short circuit Performance at IS/IEC 60947-1, Range - 100kA for 3 secs. l500a IS/IEC 60947-2, 550V, 80 ka for 3 secs. 726V 28 Service short circuit capacity IS/IEC 60947-3, IS/IEC 60947-4-1, 29 Performance at rated short IS/IEC 60947-5-1, circuit capacity* lec 60947-1, 30 Circuit fault current test* lec 60947-2, 31 Rated earth fault breaking lec 60947-3, current test* lec 60947-4-1, 32 Flexible cord test* lec 60947-4-2, lec 60947-5-1, 33 Temperature rise verification Upto 25 ka, 3 ph. With lec 60947-6-1, lec 60947-7-1, driving voltage of 40V 34 Dielectric properties IS/IEC 60898-1, Upto 100kV class. 35 Leakage current IS/IEC 60898-2, 1000V, 0 to 10 A. 36 Strength of actuator lec 60898-1, 18 gms to 13.38 kgms. mechanism IEC:60898-2, 37 Operational performance* IS 12640 (Part-I), -- 38 Tripping limits and IS 12640 (Part-2), Upto 100kA. characteristics IS3427,/IEC:298 39 Mechanical operation and lec 61008-1, Upto 100kA, 1000Volts Class. operational performance lec 61008-2-1, capability lec 61008-2-2, 40 Overload performance* lec 61009-1, Upto 100kA. 41 Verification of Overload lec 61009-2-1, releases lec 61009-2-2, 42 Marking dimensions, IS 10027, visual examination, lec 60755, General IS 13032, lec 60695-2-1/0, 43 Mechanism/Trip free IS 14659, mechanism lec 60466, 44 Indelibility of marking IS 9000(Part-VIII) 45 Clearances and creepage distances 46 Non Interchangeability 10-120cNm, 1-6Nm, 2.5-11Nm 47 Reliability of screws, current carrying parts and connectors 48 Reliability of terminals for 50N-100N, 10-120cNm, 1-6Nm external conductors 2.5-11 Nm 49 Protection against electric shock 50 Resistance to heat 51 Resistance to abnormal heat and to fire 52 Resistance to rusting 53 28-day testing 54 Mechanical and electrical* endurance test 55 Trip and non trip test 56 Resistance to mechanical shock and impact 57 Voltage drop/effective 0-100A, 50 V earthing 58 Environment test -10 C to 100 C, 20% to 98% RH 59 Moisture and humidity test -10 C to 100 C, 20% to 98% RH 60 Verification of operation Upto 1000V class. and operating limits 61 Verification of ability to Upto 10,000Amps. withstand overload currents 62 Verification of mechanical Upto 1000Volts. properties of terminals 63 Vibration test Upto 510 kg-f. 64 Time current characteristics* 65 Insulation resistance Upto 2000 M at 500V
L V Switchgear and Control gear 23 Single phase, Three phase, Energy meters and tri-vector meters 66 Transformer (current) IS/IEC 60947-1, 0-100A, 50V balance test IS/IEC 60947-2, IS/IEC 60947-3, 67 Test for determination of IS/IEC 60947-4-1, 0-30 A test device ampere turns IS/IEC 60947-5-1, 68 Test for sensitivity lec 60947-1, 100Amps, 300mAmps 69 Shock test lec 60947-2, 100Amps, 300mAmps 70 Verification of lec 60947-3, 100Amps, 300mAmps performance of test lec 60947-4-1, device lec 60947-4-2, lec 60947-5-1, 71 Degree of protection lec 60947-6-1, IP 1Xto6X&IPX1 tox6 72 Lightning Impulse lec 60947-7-1, 35kV peak 73 HV test IS/IEC 60898-1, 100kV 74 Over current device IS/IEC 60898-2, -- calibration test* lec 60898-1, 75 Operation of the test IEC:60898-2, -- device at the limits of IS 12640 (Part-I), rated voltage* IS 12640 (Part-2), 76 Behaviour of the RCCB in IS3427,/IEC:298 Upto 100A, 300mAmps case of failure of the line lec 61008-1, voltage lec 61008-2-1, 77 Limiting values of the non lec 61008-2-2, Upto 100A, 300mAmps lec 61009-1, operating currents under lec 61009-2-1, overcurrent conditions lec 61009-2-2, 78 Resistance against IS 10027, Upto 100A, 300mAmps unwanted tripping due to lec 60755, current surges IS 13032, 79 Resistance of the lec 60695-2-1/0, Upto 100A, 300mAmps. insulation against impulse IS 14659, voltage lec 60466, 80 Behaviour of RCCB in IS 9000(Part-VIII) case of earth fault current Upto 100A, 300mAmps. comprising a d.c. component 81 Reliability Upto 100A, 300mAmps. 82 Ageing of electronic Upto 100A, 300mAmps. Component 83 Controls, Sequence Upto 100A, 300mAmps. and limits of operation 84 Residual operating Upto 100A, 300mAmps. characteristics 1 Impulse voltage test S 13779, 250 V to 10 kvp IS 13010, IEC 62052-11, IEC 62053-11 IEC 62053-21 IEC 62053-22 IEC 62053-23 CBIP report 88 CBIP Manual No 304, IS 14697, Sheet 8 of 10
Single phase, Three phase, Energy meters and tri-vector meters Sheet 9 of 10 2 AC voltage test S 13779, Upto 5 kv 3 Insulation test IS 13010, Upto 2000 M 4 Test on limits of errors* IEC 62052-11, + Current : 1.2mA to 120A 5 Interpretation of test IEC 62053-11 + Voltage : 40 to 480V results IEC 62053-21 6 Test of meter constant* IEC 62053-22 7 Test of starting condition, IEC 62053-23 initial start up of the CBIP report 88 meter CBIP Manual No 304, 8 Test of no load condition IS 14697, 9 Ambient temp. influence+ 10 Test of repeatability of error+limits of error due to influence quantities+ 11 Voltage variation+ 12 Frequency variation+ 13 Reversed phase sequence+ 14 Voltage unbalance+ 15 DC & even harmonics in current circuit+ 16 Continuousmagnetic induction of external origin + 17 Magnetic induction of external origin + 18 Stray d.c.magnetic induction of external origin + 19 Abnormal d.c.magnetic Induction of external origin+ 20 Stray a.c.magnetic induction of external origin+ 21 Abnormal a.c.magnetic Induction of external Origin (10 mt) + 22 Abnormal a.c.magnetic induction (0.2T) + 23 Test of Power Consumption 24 Influence of supply voltage+ 25 Short time over current Test+ 26 Influence of self heating+ 27 Influence of heating+ 28 Test of immunity to Earth/phase fault + 29 Fast transient burst test 250 V to 4.4 kv 30 Electrostatic discharge Contact discharge: 10 kv Air discharge: 15 kv 31 Dry heat test Upto 75 C 32 Cold test Upto -25 C 33 Damp heat cyclic test RH 30% to 98%, -25 C to 75 C 34 Spring Hammer Test/ 0.22Nm mechanical test of meter case 35 Protection against penetration of dust and water 36 Test of resistance to heat & fire 37 Auxiliary voltage 15% + 38 Phase of auxiliary Supply changed by 120 +
Single phase, Three phase, Energy meters and tri-vector meters 39 Range of adjustment. + IS 13779, 40 Independence of IS 13010, adjustment. + IEC 62052-11, 41 Sustained accuracy test+ IEC 62053-11 42 Oblique suspension. + IEC 62053-21 43 Mechanical load of either IEC 62053-22 single or multirate IEC 62053-23 Resister + CBIP report 88 44 Test on material used in CBIP Manual No 304, dial + IS 14697, 45 Running at low load Magnetic field of an Accessories + 46 General, meter case, window, Terminals, terminal cover, Protective earth terminal. Clearance & creepage distances, Insulating encased meter, Display of measured values, output device All ratings All ratings Sheet 10 of 10 47 Marking of meters 48 Register( counting mechanism) 49 Direction of rotation & marking of the rotor, Speed of Rotation 50 Radio Interference 9.0 khz to 2 GHz measurement 51 Test of Immunity to 10 khz to 3 GHz electromagnetic HF Fields. 52 Test of immunity to 150 khz to 250 MHz conducted disturbances induced by Radio frequency field. 53 Vibration test Sign and random 0.1 Hzto 3.5 khz 54 Shock test Half sign 55 Physical communication interface 56 Communication requirement 57 System level test + 58 Operation of an Accessories + 59 Waveform 10% of 1 st to 10 th harmonics harmonic in the current+ 60 Harmonic component in 1 st to 10 th harmonics current and voltage circuit + 61 Sub harmonic in ac 1 st to 10 th harmonics current circuit 62 Odd harmonics in ac current circuit* 63 Surge immunity test 200 V to 6.0 kv 64 Damped oscillatory wave 200 V to 4.0 kv immunity 65 Verification of antitamper features * CPRI document TOP-04 1mA to 120 A 40 to 480V