IEC 62368-1 Table D.1 Impulse Test Generator
The KP-1950S is an IEC 62368-1 Table D.1 Impulse Test Generator designed for AV/ICT equipment safety testing. It provides controlled high-voltage impulse outputs for Table D.1 related test circuits, including 10/700 μs and 1.2/50 μs pulse waveforms.
This impulse test generator is suitable for safety laboratories, certification preparation, R&D verification and manufacturer quality control where repeatable impulse voltage testing is required for information technology equipment, communication equipment, power supplies and related electronic products.
- Applicable Standard: IEC 62368-1 Table D.1
- Test Type: Impulse voltage test generator
- Test Circuits: Table D.1 Circuit 1 and Circuit 2
- Pulse Waveforms: 10/700 μs and 1.2/50 μs
- Output Voltage: 0–4 kV for 10/700 μs, 0–6 kV for 1.2/50 μs
- Control System: PLC programmable controller
- Operation Interface: 7-inch color touchscreen
- Typical DUT: AV equipment, IT equipment, communication equipment, network equipment, adapters and power supplies
Product Overview
The KP-1950S Impulse Test Generator is designed for IEC 62368-1 Table D.1 related impulse voltage testing. It generates specified impulse waveforms used to evaluate whether AV/ICT equipment and related circuits can withstand transient electrical stress under standard-defined test conditions.
For laboratories and manufacturers, the main concern is not only the maximum output voltage. The more important point is whether the generator provides the correct pulse waveform, voltage range, polarity switching and test sequence required by the applicable test circuit. The KP-1950S supports both 10/700 μs and 1.2/50 μs impulse waveforms, making it suitable for projects that require Table D.1 related circuit verification.
This model should not be treated as a general signal generator. It is a dedicated impulse voltage test instrument for safety-related impulse testing of AV/ICT equipment, communication equipment and associated electronic products.
Technical Specifications
The main specifications of the IEC 62368-1 Table D.1 Impulse Test Generator are organized below for quick laboratory and purchasing review.
Impulse Output and Waveform
| Item | Specification |
|---|---|
| Product Model | KP-1950S |
| Applicable Standard | IEC 62368-1 Table D.1 / GB4943.1 related testing |
| Test Type | Impulse voltage test generator |
| Test Circuit | Table D.1 Circuit 1 / Circuit 2 |
| Pulse Waveform 1 | 10/700 μs |
| Output Voltage for 10/700 μs | 0–4 kV, continuously adjustable |
| Waveform Error for 10/700 μs | ±20% |
| Pulse Waveform 2 | 1.2/50 μs |
| Output Voltage for 1.2/50 μs | 0–6 kV, continuously adjustable |
| Waveform Error for 1.2/50 μs | ±20% |
| Voltage Display Accuracy | ±5% ±3 digits |
Control and Test Settings
| Item | Specification |
|---|---|
| Charge / Discharge Time Setting | 1–999 s |
| Time Setting Accuracy | ±1% |
| Test Cycles | 0–999 times |
| Test Count Accuracy | ±1 count |
| Output Voltage Polarity | Positive and negative alternating switching |
| Monitoring Output Voltage Ratio | 1:1000 |
| Control System | PLC programmable controller |
| Display / Operation | 7-inch color touchscreen |
| Operation Menu | Chinese / English interface |
Protection, Power and Structure
| Item | Specification |
|---|---|
| Protection Function | Overcurrent and overvoltage protection |
| High Voltage Transformer Power | 400 VA |
| Input Power | AC 220 V ±10%, 50 Hz ±2 Hz |
| Dimensions | Approx. 640 × 460 × 320 mm |
Waveform and Test Circuit Selection
IEC 62368-1 Table D.1 related impulse testing may involve different impulse circuits and waveform requirements. Before selecting the equipment configuration, laboratories should confirm which test circuit is required by the product test plan.
| 10/700 μs Impulse WaveformThe 10/700 μs impulse waveform is typically associated with impulse testing that simulates lightning interference in communication networks. It is useful for AV/ICT products and communication-related equipment where transient stress from external network conditions needs to be considered. |
| 1.2/50 μs Impulse WaveformThe 1.2/50 μs impulse waveform is commonly used to simulate transient voltage conditions in distribution systems. This test condition helps evaluate whether equipment insulation and protective circuits can withstand short-duration high-voltage impulses. |
| Circuit 1 and Circuit 2 ConfirmationCircuit 1 and Circuit 2 may use different component configurations and pulse characteristics. The required circuit should be checked against the applicable standard version, DUT category and laboratory procedure before testing. |
Circuit Configuration Reference
The Table D.1 test network includes defined circuit parameters for different impulse waveforms. A typical configuration may include capacitors and resistors selected according to the required circuit type.
| Circuit Type | Test Pulse | C1 | C2 | R1 | R2 | R3 |
|---|---|---|---|---|---|---|
| Circuit 1 | 10/700 μs | 20 μF | 0.2 μF | 50 Ω | 15 Ω | 25 Ω |
| Circuit 2 | 1.2/50 μs | 1 μF | 30 nF | 76 Ω | 13 Ω | 25 Ω |
Note: The actual test arrangement should follow the applicable IEC 62368-1 / GB4943.1 standard version and laboratory procedure. The impulse waveform may vary under different load conditions.
Design and Operation Features
| PLC Programmable ControlManages test parameters, working status and test sequence to support repeatable testing and reduce manual operation errors. | 7-Inch Color TouchscreenSupports parameter setting and operation monitoring with Chinese and English menu operation. |
| Dual Waveform CapabilitySupports both 10/700 μs and 1.2/50 μs impulse waveforms for Table D.1 related test plans. | Adjustable Output VoltageProvides 0–4 kV for 10/700 μs and 0–6 kV for 1.2/50 μs impulse testing. |
| Programmable Test CyclesCharge/discharge time and test count can be programmed for repeated impulse application and batch verification. | Alternating Polarity OutputSupports positive and negative alternating polarity switching when both impulse polarities are required. |
| Protection FunctionsOvercurrent and overvoltage protection functions help improve operational safety and protect the instrument during high-voltage impulse testing. | |
Typical Applications
The KP-1950S is used for IEC 62368-1 Table D.1 related impulse voltage testing of AV/ICT and electronic products.
- Audio/video equipment safety testing
- Information technology equipment testing
- Communication equipment verification
- Network equipment and interface safety testing
- Power supply and adapter impulse withstand testing
- R&D design margin evaluation
- Pre-compliance testing before certification
- Factory quality control and batch sampling
- Electrical safety laboratories and product certification preparation
What the Test Helps Evaluate
Impulse voltage testing helps engineers evaluate whether the equipment design can maintain safety performance when exposed to defined transient electrical stress.
The test may help identify weak insulation paths, insufficient clearance or creepage margin, protective circuit weakness, component withstand limitations, unexpected breakdown, flashover, abnormal response under transient voltage conditions, or design risks before formal certification testing.
Note: This section is not a replacement for the standard test procedure. The final connection method, waveform selection, voltage setting and pass/fail judgment should follow the applicable IEC 62368-1 / GB4943.1 requirement and the laboratory’s internal safety procedure.
Buyer’s Selection Notes
Before purchasing an IEC 62368-1 impulse test generator, buyers should confirm the following items:
Typical Operation Workflow
- Confirm the applicable standard clause, waveform and Table D.1 circuit type.
- Prepare the DUT according to the laboratory test procedure.
- Select the required impulse waveform: 10/700 μs or 1.2/50 μs.
- Set the output voltage, charge/discharge time and number of test cycles.
- Confirm polarity setting and test connection arrangement.
- Check grounding, insulation clearance and operator safety conditions before testing.
- Start the programmed test sequence and monitor the DUT response.
- Record the test result, abnormal behavior or visible breakdown condition.
- After testing, discharge the circuit safely before handling the DUT.
Safety Note: High-voltage impulse testing should only be performed by trained personnel under controlled laboratory conditions. The operator should follow the applicable standard, equipment manual and internal safety procedure.
Typical Observations During Testing
During impulse voltage testing, engineers usually observe whether the DUT shows insulation breakdown, flashover, abnormal discharge, protective component failure, malfunction, permanent damage or other unexpected behavior.
For pre-compliance work, the result can help engineers identify design areas that may require review before formal certification. Final pass/fail judgment should always follow the applicable standard requirement and the laboratory’s approved test procedure.
Impulse Test Generator for IEC 62368-1 Table D.1
The term “impulse test generator” can refer to different waveforms, circuits and test purposes. The KP-1950S is specifically intended for IEC 62368-1 Table D.1 related impulse voltage testing.
It should not be confused with a general laboratory signal generator, arbitrary waveform generator or unrelated EMC surge simulator. For correct selection, the required waveform, voltage range, circuit type and DUT connection method should be confirmed before ordering.
Compliance & Regulatory Assurance
- The KP-1950S supports IEC 62368-1 Table D.1 and GB4943.1 related impulse voltage testing for AV, IT and communication equipment. It helps laboratories and manufacturers perform standard-based verification during R&D, pre-compliance checks and routine quality control.
- To support compliance work, the required standard version, test circuit, waveform, voltage level, DUT connection method and documentation needs should be confirmed before ordering. Calibration-related documents and technical datasheets can be provided according to project requirements.
Technical Inquiry & Expert Support
For correct model selection, please share the following information when sending an inquiry. This helps confirm whether the KP-1950S matches your IEC 62368-1 Table D.1 test plan before quotation or purchase.
| Information Needed | Example |
|---|---|
| Applicable standard | IEC 62368-1 / GB4943.1 |
| Required circuit | Table D.1 Circuit 1, Circuit 2, or both |
| Required waveform | 10/700 μs, 1.2/50 μs, or both |
| Required voltage range | 0–4 kV / 0–6 kV or specific test point |
| DUT type | AV equipment, IT equipment, communication equipment, adapter, power supply |
| Documentation needs | Datasheet, calibration document, inspection record |
KingPo can help confirm whether the KP-1950S matches your test plan before quotation or purchase. This helps reduce configuration errors and ensures the equipment is suitable for your laboratory, certification preparation or production quality control use.
Impulse test generator Video
IEC 62368-1 Table D.1 Impulse Test Generator
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