GB/T 19212.6-2013[GB/T 19212.6-2013] Safety of transformers, reactors, power supply units and combinations thereof -- Part 6: Particular requirements and test for transformer for shavers, power supply units for shavers and shaver supply units (English PDF)

Foreword

All technical content in this section is mandatory.

GB 19212 "of power transformers, power supplies, reactors and similar products -" 1) is divided into several parts.

1) This series of standards, some parts are under "power transformers, power supplies, reactors and similar products," the title, some parts in the "Supply Voltage

And to 1100kV of transformers, reactors, power supply units and similar products "under the heading, some parts in the" transformers, reactors, electrical

Under the source device and the combination is safe, "the title, the title of this series of standards may be modified in future releases.

Part 1. General requirements and tests;

Part 2. Particular requirements and general purpose test transformer isolated and built separate transformer power supply;

Part 3. Specific requirements and test transformer control and built-in control transformer power supply;

Part 4. Gas and oil burner ignition transformers for special requirements;

Part 5. Specific requirements and test isolation transformer isolation and built-in transformer power supply device;

Part 6. shaver transformer, and shaver shaver supply units power supply unit Particular requirements and tests;

Part 7. Particular requirements and tests for safety isolating transformers and built-in safety isolating transformer power supply device;

Part 8. Particular requirements for transformers for toys and power supplies and test;

Part 9. Particular requirements for bell and bell transformers;

Part 10. Class III portable tungsten transformer and power devices - Particular requirements and tests;

Part 13. Particular requirements for constant voltage transformers;

Part 14. Particular requirements for auto transformers and autotransformers built power supply device;

Part 16. supply of medical locations Particular requirements for isolating transformers;

Part 17. switched-mode power supply units and switch-mode power supply unit with the special requirements for transformers and tests;

Part 20. Particular requirements for interference attenuation transformers;

Part 21. Small reactors Particular requirements and tests;

Part 24. Particular requirements for transformers for construction sites.

Other parts are under consideration.

This is Part 6 GB 19212's. This is part of the GB 19212.1-2008 developed on the basis of this part of the need and

GB 19212.1-2008 and No. 1 in conjunction with amendments. This part is the GB 19212.1-2008 corresponding chapter, article be Complement

Charge and modified so that the content of GB 19212.1-2008 conversion based content portions. This new section for the GB 19212.1-2008

Additions numbered starting from 101.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB 19212.6-2006 "Safety - Part 6 power transformers, power supply units and similar products. shaving with change

Particular requirements for pressure and shaver supply units. "

This section compared with GB 19212.6-2006, the main technical changes are as follows.

--- Standard name changed to "transformers, reactors, power supply units and combinations thereof - Safety - Part 6. shaver transformers, shaving

Particular requirements and tests "blade shaver with power supply unit and power supply means;

--- Amend the provisions of Chapter 1 Scope (see Chapter 1);

--- Modify the term "shaver transformers" and the definition of "razor-powered device" (see 3.1.101 and 3.1.102);

--- Remove the rated output voltage specified preferred value range (see 2006 edition of 6.101);

--- Increased provision independent transformer no-load output voltage limit (see 12.101);

--- Remove the GB 19212.1-2008 Chapter 18 provisions do not apply (see the 2006 edition of the 18.2 and 18.3);

--- Amend the provisions of the structure (see Chapter 19);

--- Removed Appendices C and D (see the 2006 edition of Appendices C and D).

This section uses the translation method identical with IEC 61558-2-5.2010 "transformers, reactors, power supply units and combinations Safety

Part 2-5. shaver transformer, and shaver shaver supply units power supply unit Particular requirements and tests. "

Consistency correspondence between this part of international documents and normative references of our files are as follows.

GB 17466 (all parts) for household and similar fixed electrical installations boxes and enclosures for electrical accessories [IEC 60670 (al

parts), IDT]

This part made the following editorial changes.

--- Standard name changed to "transformers, reactors, power supply units and combinations thereof - Safety - Part 6. shaver transformers, shaving

Particular requirements and tests "blade shaver with power supply unit and power supply means;

--- Chapter 2, "Normative references" with "GB 19212.1-2008 amendments No. 1" instead of "IEC 61558-1.2005".

Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.

This part is proposed by the China Electrical Equipment Industrial Association.

This part of the National Small power transformers, reactors, power supply units and similar products Standardization Technical Committee (SAC/TC418)

Centralized.

This section is drafted. Shenyang Transformer Research Institute Co., Ltd., Shanghai Quality Supervision, Inspection Technology Research Institute, National Broadcasting electricity

Depending on the product quality supervision and inspection center, Shenzhen Institute of Electrical Sciences, Chinese Academy of household appliances, high-Hui Electronics Co., Ltd. Tianjin Optical.

1 Scope

GB 19212.1-2008 this chapter is replaced by the following.

GB This section 19212 specifies the shaver transformers, power supply units built shaver transformers and shaver supply unit

Safety requirements. With electronic circuits shaver transformers are also included in this section.

Note 1. Safety requirements including electrical, temperature, mechanical and chemical.

Unless otherwise specified, the following "transformer" includes shaver transformers, power transformers built shaver and shaver supply unit

Means.

This section applies in a vertical, single-phase air-cooled (self-cooled or air-cooled), with independent or supporting the use of dry-type transformers. Windings can be

Encapsulated or non-encapsulated type.

This section applies to the internal operating frequency not exceeding 500Hz transformers and power supply (linear).

This section also applies to the internal operating frequency exceeding 500Hz power and should be used in conjunction with GB 19212.17. When the two standards

When a conflict, give priority to the most stringent standards.

Rated supply voltage not exceeding AC 250V, rated supply frequency not exceeding 500Hz.

20VA rated output of not less than and not more than 50VA.

Load output voltage does not exceed AC 275V, and the rated output voltage does not exceed AC 250V.

This section does not apply to scheduled to be connected to the input and output terminals or output receptacle transformer circuit and external components.

When installation procedures or between the bathroom and electrical specification requirements for the installation site similar circuit is double or reinforced insulation, you can use this

It comprises a portion of a transformer.

Note 2. This section includes a transformer can be fitted in or surface mounted on the lighting and mirrors, or mount containing one or more of its output socket

He inside the machine.

Note 3. The following should be noted.

--- Transformer predetermined use on a vehicle, ship or aircraft, additional requirements may be necessary (according to other applicable standards, national regulations, etc.);

--- Avoid the housing and the housing components such as protective measures by the outside influence of mold, insects, termites, solar radiation, and icing should also be considered;

--- Transformer transport, storage and different conditions of work should also be considered;

--- Intended to be used for special circumstances transformers can be used in line with national standards and other applicable rules of the additional requirements.

Note 4. With the future development of transformer technology, may need to increase the upper limit frequency, but before then, you can use this section as a guide.

2 Normative references

In addition to the following references, GB 19212.1-2008 this chapter apply.

The increase in the following chapter references.

GB 19212.1-2008 "power transformers, power supplies, reactors and similar products - Part 1. General requirements and tests

No. 1 amendments (IEC 61558-1Ed2.0AMENDEMENT1, IDT)

IEC 60068-2-62. 1.1991 Environmental testing for electric and electronic products Part 2. Test methods Test Ef. pendulum impact 2)

(Environmentaltesting-Part 2. Testmethods-TestEf. Impact, pendulumhammer)

2) The standard has been IEC 60068-2-75.1997 instead, but because of the need in this section, so the IEC 60068-2-62. 1.1991 is still reference.

IEC 60670 (alparts) for household and similar fixed electrical installations and electrical accessory mounting box housing [Boxesandenclo-

suresforelectricalaccessoriesforhouseholdandsimilarfixedelectricalinstalations]

3 Terms and Definitions

In addition to the following terms and definitions outside, GB 19212.1-2008 this chapter apply.

The chapter increase following terms and definitions.

3.1.101

Shaver transformers shavertransformer

As fixing means and having a limited output, designed for electric shavers, electric toothbrushes in the bathroom and a rated output of no more than use

50VA other similar devices powered isolation transformer. It can only give a razor or similar means power.

3.1.102

Shaver supply means shaversupplyunit

Equipped with electrical accessories shaver transformers or shaver is equipped with a transformer power supply unit with a once only allowed to use

One or more plug outlet.

4 General requirements

This chapter applies the GB 19212.1-2008.

General Description 5 tests

This chapter applies the GB 19212.1-2008.

6 RATINGS

GB 19212.1-2008 this chapter and replaced by the following.

8 Marking and other information

In addition to the following terms outside, GB 19212.1-2008 this chapter apply.

Article 8.1 of h) the first sentence is replaced by the following.

9 Protection against electric shock

This chapter applies the GB 19212.1-2008.

10 change the input voltage setpoint

This chapter applies the GB 19212.1-2008.

11 load output voltage and output current

This chapter applies the GB 19212.1-2008.

12 no-load output voltage

In addition to the following terms outside, GB 19212.1-2008 this chapter apply.

The chapter increased the following provisions.

13 short-circuit voltage

This chapter applies the GB 19212.1-2008.

Fever 14

This chapter applies the GB 19212.1-2008.

15 short-circuit and overload protection

This chapter applies the GB 19212.1-2008.

16 Mechanical strength

In addition to the following terms outside, GB 19212.1-2008 this chapter apply.

Article 16.1 is replaced by the following.

For razor-powered device, by the test of 16.101 eligibility.

Addition of the following.

16.101 shaver power supply device according to the following provisions, with the pendulum impact test performed.

10 ± 0.1 0.2

Cover and recessed depth razor flush mounted power supply means at least

Those portions of the concave portion of the fourth largest size

15 ± 0.1 0.3 shell

25 ± 0.1 0.5 Other section

16.101.2 samples should withstand 10 times the impact, the 10 blows should be evenly distributed in the sample.

5 blows following provisions shall be applied.

--- For scheduled to be concealed razor-mounted power supply unit, at the center of the impact is applied once, and then moving the sample level,

Pillow block recess located at each end of the range of each applied for 1 shocks applied to the other two times approximate midpoint between the point of impact

Impact;

--- For not intended to be concealed razor-mounted power supply unit, once applied to strike at the center, then the sample do about a vertical axis

Can turn (but rotated by an angle of not more than 60 °) after each side of the sample is applied to each hit once, above the point of impact

The approximate midpoint between two blows is then applied.

The sample is then about an axis perpendicular to the plywood rotated by 90 ° in the same manner as the rest of the impact is applied.

If you have cable entry, the sample shall be mounted so that two rows of the point of impact as far as possible and the distance between the cable entry as possible equal.

After 16.101.3 test, the sample should not damage within the meaning of this section appears. In particular, live parts shall not become accessible.

Note 1. The surface layer is damaged, it does not make the creepage distances or clearances reduced to less than a small dent in Chapter 26, a predetermined value, and does not protect against electric shock or moisture

Adversely affect small pieces negligible.

Note 2. In case no additional amplification, normal or corrected vision invisible cracks and fiber-reinforced moldings and similar surface cracks negligible.

17 to prevent dust, solid objects and moisture into the harmful Protection

This chapter applies the GB 19212.1-2008.

18 insulation resistance, dielectric strength and leakage current

This chapter applies the GB 19212.1-2008.

19 Structure

In addition to the following terms outside, GB 19212.1-2008 this chapter apply.

Article 19.1 is replaced by the following.

Input and output circuits shall be electrically isolated from each other. There can be no direct or indirect through its structure should make these circuits

Had connections to other conductive parts, except when you intend to take.

By visual inspection and measurement, taking into account the provisions of Chapter 18 and Chapter 26, to verify eligibility.

19.1.1 input and output winding insulation between the windings by double or reinforced insulation (corresponding to the operating voltage) composition.

Also, meet the following requirements.

--- For reservations not use the power plug connected to the grid class I transformer, the input winding insulation and the ground between the housing should be to

Less (corresponding to the input voltage) is composed of basic insulation. Insulating housing between the output windings and the ground should be at least substantially Jedi

Margin (corresponding to the output voltage) constituted;

--- For reservations use the power plug is connected to the grid class I transformer, the input winding and the insulation between the housing, at least from the basic

Insulation (operating voltage corresponding to the) constitution. Isolated output winding and the housing between at least phase by an additional insulation (operating voltage

Correspondence) constituted;

--- For class II transformer between the input winding and the housing insulation shall consist of double or reinforced insulation (corresponding to the input voltage)

constitute. Output winding insulation between the housing shall be double or reinforced insulation (corresponding to the output voltage) composition.

19.1.2 not received with respect to the housing and positioned intermediate input conductive parts (such as the core) and output windings of the transformer between

Having an input winding and any intermediate insulating conductive parts shall consist of at least basic insulation (corresponding to the operating voltage), and that the output winding

Any insulation between the intermediate conductive part shall consist of at least supplementary insulation (corresponding to the operating voltage).

Note 1. input winding or output winding or housing at least basic insulation separate intermediate conductive part shall be deemed to be received on the associated components.

Note 2. The basic and supplementary insulation can be interchangeable.

In addition, the following provisions apply.

--- For class I transformer between the input winding and the output winding through an intermediate conductive parts (even if it is grounded), it should be double insulated

Heavy or reinforced insulation (corresponding to the operating voltage) constituted;

--- For class II transformer, the input winding and the inter-housing and output winding and housing, via an insulating intermediate conductive part shall

Double or reinforced insulation (with the input voltage and the output voltage corresponding to the) constitution;

--- For the non-independent transformer (IP00), winding between its input and output windings via the intermediate conductive part shall consist of double insulation

Or reinforced insulation (corresponding to the operating voltage) composition.

Note 3. In this clause, since you may want to take into account the intermediate conductive parts ground, therefore, the two circuits (primary and secondary) are not permitted between the basic insulation,

For the following reasons.

--- Intermediate conductive parts are generally made by each core with an insulating oxide film laminations made. Does not guarantee that all of the core pieces correctly

Grounded.

--- For the non-independent transformer, it does not guarantee that the core will be the ground in the final application.

The chapter increased the following provisions.

Between 19.101 and output circuits should be no protective earth connection.

Output circuit between 19.102 and housing should be no connection.

It should by visual inspection to verify compliance.

19.103 input and output terminals for external wiring used should be arranged such that the measurement conductor between the access point at the input and output terminals

Distance of not less than 25mm. If the separator to ensure this distance, it should cross (Vietnam) had to bypass the separator and measured application of insulating spacer material

Material production and permanently fixed to the transformer.

By visual inspection and measurement test is qualified, without regard to the intermediate conductive parts.

The chapter increased the following provisions.

Mounting box transformers or shaver supply apparatus 19.111 concealed installation shall comply with the requirements of IEC 60670 series of standards.

By visual inspection to verify compliance.

19.112 shaver power supply device should be fitted in the output circuit outlet. Should not simultaneously insert more than one plug. Should not be

Insert the plug caused 20.5 listed spanning two output sockets.

By visual inspection and manual measurements to verify eligibility.