NB/T 10203-2019Push-button switches with automatic rebound mechanism for household and similar purposes (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the terms, definitions and technology of push-button switches with automatic reset mechanisms (hereinafter referred to as switches) for household and similar purposes Requirements and test methods.

This standard applies to indoor or outdoor use, and is only used for AC, rated voltage not exceeding 250 V, and rated current not exceeding 20 A.

Use and similar fixed electrical devices, manually operated push button switches with automatic reset mechanism.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.

For undated references, the latest version (including all amendments) applies to this document.

GB/T 16915.1-2014 Switches for household and similar fixed electrical installations Part 1: General requirements

3 Terms and definitions

The following terms and definitions defined in GB/T 16915.1-2014 apply to this document.

4 General requirements

Chapter 4 of GB/T 16915.1-2014 applies.

5 General notes on the test

Chapter 5 of GB/T 16915.1-2014 applies.

6 Rating

6.1 The rated voltage of the switch is 230 V and 250 V.

6.2 The preferred value of the rated current of the switch is 6 A, 10 A, 16 A, 20 A.

6.3 The preferred degree of protection for switches that meet this standard is IP5X.

6.4 Subclause 6.4 of GB/T 16915.1-2014 applies.

7 Categories

7.1 Classification according to the operable area of the starting element.

--Button switch for partial position operation (see Appendix A.1);

--Button switch operated at any position (see Appendix A.2).

7.2 7.1 of GB/T 16915.1-2014 is applicable except for 7.1.5.

7.3 Subclause 7.2 of GB/T 16915.1-2014 applies.

8 Signs

8.1 Chapter 8 of GB/T 16915.1-2014 applies.

8.2 Use indicator lights, color signs or other methods to indicate changes in the position of the moving contact.

9 Dimension check

Chapter 9 of GB/T 16915.1-2014 applies.

10 Protection against electric shock

Chapter 10 of GB/T 16915.1-2014 applies.

11 Grounding measures

Chapter 11 of GB/T 16915.1-2014 applies.

12 Terminals

Chapter 12 of GB/T 16915.1-2014 applies.

13 Structural requirements

GB/T 16915.1-2014 Chapter 13 is applicable except 13.5.

14 Switch mechanism

14.2 The reset mechanism should not be opened without tools. And should ensure that the installation of the switch will not affect the action of the reset mechanism.

14.3 When operating the switch, in the operable area of the starting element, when the finger presses any position in the area, the starting element can be operated Complete the switch on and off action.

The inspection method is as follows. According to the operable area of the starting element given in the manufacturer's manual, select 10 positions in the area at will, Press the starting element 5 times each to operate the switch normally.

15 Anti-aging, protection provided by the switch shell and moisture resistance Chapter 15 of GB/T 16915.1-2014 applies.

14.1 Chapter 14 of GB/T 16915.1-2014 applies except for 14.6

16 Insulation resistance and electric strength

Chapter 16 of GB/T 16915.1-2014 applies.

17 Temperature rise

Chapter 17 of GB/T 16915.1-2014 applies.

18 Making and breaking capacity

Chapter 18 of GB/T 16915.1-2014 applies.

19 Normal operation

GB/T 16915.1-2014 Chapter 19 is applicable after adding the following requirements. After the normal operation test, check 14.3 again.

20 Mechanical strength

Chapter 20 of GB/T 16915.1-2014 applies.

21 Heat resistance

Chapter 21 of GB/T 16915.1-2014 applies.

22 Screws, current-carrying parts and connections

Chapter 22 of GB/T 16915.1-2014 applies.

23 Creepage distance, electrical clearance and penetration sealant distance Chapter 23 of GB/T 16915.1-2014 applies.

24 Abnormal heat resistance, flame resistance and tracking resistance of insulating materials Chapter 24 of GB/T 16915.1-2014 applies.

25 Anti-rust

Chapter 25 of GB/T 16915.1-2014 applies.

26 Electromagnetic compatibility (EMC) requirements

For switches that comply with this standard, the electromagnetic compatibility requirements do not apply.

Appendix A (Informative appendix)

Point switch structure diagram The schematic diagram of the button switch product structure is shown in Figure A.1 and Figure A.2.