With the continuous development of the household appliance market, product safety has become the focus of common attention of consumers and manufacturers. As an important guide for the safety testing of household appliances, the latest edition of the standard stipulates in detail the safety requirements for equipment such as exterminators. Today, we will focus on the testing requirements of Chapter 22 of the standard to help manufacturers ensure product safety compliance.

22.6 Drain hole size

Keyword analysis:

1. Drain hole: refers to the small hole on the equipment used to drain the accumulated water inside.

2. The diameter should be at least 5mm: ensure that the drain hole is of sufficient size so that water can drain smoothly.

3. The area should be at least 20mm²: the total area of the drainage holes should meet certain standards to ensure drainage efficiency.

4. Width at least 3mm: The width of the drain hole should also meet the minimum size requirement to prevent clogging.

Test method:

 Check that the size of the drain hole conforms to the specification by observing and using an IEC61032B test bar.

22.101 Interlock switch

Keyword analysis:

1. Interlock switch: A safety device used to prevent users from coming into contact with live parts during maintenance.

2. Input circuit: refers to the part of the circuit where power enters the device.

3. Prevent accidental actions: Ensure that the interlock switch is positioned and designed to avoid accidental contact with live parts during maintenance.

Test method:

 Verify that the interlock switches are effective in preventing accidental contact by observing their position and function and checking with IEC 61032 Type B test bars.

22.102 Grid grounding

Keyword analysis:

1. Horizontal form grille: refers to the ventilated or protective grid structure on equipment.

2. One pole of the output end of the transformer is connected to an easily accessible part: It means that the output end of the transformer may be connected to a part that is easily touched by the user.

3. Lowest grid grounding: means that the grid at the lowest position on the equipment needs to be connected to ground wire to reduce the risk of electric shock.

Test method:

Visually inspect to confirm that the lowest grille is grounded.

22.103 No risk of electric shock

Keyword analysis:

1. Device structure: refers to the overall design and structure of the insect killer.

2. Grille touched during maintenance: refers to the part of the grille that may come into contact during maintenance.

3. No electrical shock hazard: Ensure that contact with the grille during maintenance does not cause electrical shock.

Test method:

 The appliance is supplied with power at the rated voltage. One second after disconnecting the power supply, use an instrument that does not affect the measurement value to measure the voltage between the grids to ensure that the voltage does not exceed 34V.

22.104 Short-circuit current

Keyword analysis:

1. Output circuit: refers to the circuit from the power supply to the load (such as the heating element of an insect exterminator).

2. Short-circuit current: The current that flows when a circuit is shorted.

3. Should not be too large: means that the magnitude of the short-circuit current should be within a safe range to prevent equipment damage or fire.

Test method:

 Supply power at rated voltage, measure the short circuit current between two grids and each grid to ground to ensure that the short circuit current does not exceed 10mA.

 The purpose of these test requirements is to ensure that insect exterminator meets safety standards during the design and manufacturing process to protect users from electrical hazards. Manufacturers should ensure that their products meet these safety requirements during the design and production process.

Conclusion: Chapter 22 of the standard provides clear testing guidance for home appliance manufacturers to ensure the electrical safety of their products. Manufacturers should strictly abide by these requirements and provide consumers with safe and reliable household appliances through precise testing and quality control.