GB 16915.5-2012Switches for household and similar fixed electrical installations -- Part 2-4: Particular requirements -- Isolating switches (English PDF)

Foreword

GB 16915 Chapter 10 of this section, Chapter 11, Chapter 16, Chapter 17, Chapter 18, 21.2, 23 chapters, 24 are mandatory, the rest it is recommended.

GB 16915 "Switches for household and similar fixed electrical installations" is divided into two parts.

--- Part 1. General requirements (GB 16915.1);

--- Part 2. Particular requirements (GB 16915.2 ~ GB 16915.5) - Part 2-1. Particular requirements for electronic switches (GB 16915.2);

- Part 2. Particular requirements - Section 2. remote control switch (GB 16915.3);

- Part 2. Particular requirements - Section 3. delay switch (GB 16915.4);

- Part 2-4. Particular requirements for isolating switches (GB 16915.5).

This is part of the GB Part 2-416915.

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

This section uses the translation method identical with IEC 60669-2-4:2004 (first edition) on "household and similar fixed electrical installations Off Part 2-4. Particular requirements for isolating switch. " Consistency correspondence between this part of international documents and normative references of the following documents.

--- GB 16915.1 Switches for household and similar fixed electrical installations - Part 1. General requirements (GB 16915.1-2003, IEC 60669-1:2000, MOD);

--- GB/T 17627.1-1998 part of high-voltage test techniques for low voltage equipment. definitions and test requirements (eqv IEC 1180-1:1992).

This part of IEC 60669-2-4:2004 made the following editorial changes.

--- According to GB/T 1.1 relevant provisions in Chapter 1, "scope" in the first line of supplements "This section provides solid household and similar purposes Fixed electrical installations disconnectors classification, terminals, structural requirements, mechanical properties, electrical properties technical requirements. "

--- According to GB/T 1.1 relevant provisions in Chapter 2, "Normative references" supplemented with IEC 60669-1 name.

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

This part of the National Electric annex Standardization Technical Committee (SAC/TC67) centralized.

This section drafted by. China Electric Apparatus Research Institute Co., Ltd., Hangzhou Hongyan Electric Co., Ltd., based Electric (Shenzhen) Co., Secretary, Zhejiang Chint Building Appliance Co., Ltd., the Bulls Group Co., Clipsal Industries (Huizhou) Co., Ltd. Shenzhen Branch, Simon Electric (China) Limited, NVC Lighting Technology Co., Ltd., Beijing Branch of the Electronic Technology Co., Ltd. Bo can be.

1 Scope

IEC 60669-1 of this chapter for the following modifications apply.

Paragraph 1 is following elements instead.

This section provides for household and similar fixed electrical installations disconnectors classification, terminals, structural requirements, mechanical properties, electrical Technical performance requirements.

GB This section 16915 is suitable for indoor or outdoor use, rated voltage not exceeding 440V, rated current not exceeding 125A of General purpose isolation switches for household and similar fixed electrical installations manually.

Note. According to GB/T 16935.1 "insulation coordination within the low-pressure system equipment - Part 1. Principles, requirements and tests", isolating switches designed for overvoltage category III and pollution degree 2 environment.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

Switches Part 1 IEC 60669-1 for household and similar fixed electrical installations. General requirements (Switchesforhouse-After Generalrequirements) of this chapter for the following modifications. holdandsimilarfixed-electricalinstalations-Part 1 be applicable.

increase.

IEC 61180-1:1992 low-voltage high-voltage test techniques - Part electrical equipment. definitions and test requirements (High-voltage testtechniquesforlowvoltageequipment-Part 1. Definitions, testandprocedurerequirements)

3 Terms and Definitions

IEC 60669-1 increase of this chapter the following applies.

Increase definition.

3.101

Disconnector isolatingswitch the device is designed for electrical equipment or parts of the device and the power supply is isolated and connected, carry or cut off all current carrier phase pole switch.

3.102

Short Circuit conditionalshort-circuitcurrent Inc Switching without short-circuit protection and short circuit protection device is a suitable series (hereinafter referred to as SCPD) protection of workers in the use and provision of Under the conditions as to withstand the expected alternating current component values.

3.103

Joule integral value jouleintegral I2t Square of the current in a given time points. I2t = integral t1 t0 i2dt.

4 General requirements

IEC 60669-1 chapter apply.

5 General description of the test

IEC 60669-1 of this chapter for the following modifications apply.

5.4 Addition.

About 18.101 tests, three additional specimens.

6 RATINGS

IEC 60669-1 of this chapter for the following modifications apply.

6.2 changes are as follows.

In the first paragraph, delete the value "6A" and "10A", increase the value "80A, 100A and 125A" 1).

1) IEC description here adds two note.

101 Note. In the following countries, 13A are seen as preferred values. Denmark and the United Kingdom.

102 Note. In the UK, the rated current is less than 16A insulators allow widespread use. In the UK, the first part of this chapter apply.

Addition of provisions.

9 Dimensional inspection

IEC 60669-1 chapter apply.

10 Protection against electric shock

IEC 60669-1 of this chapter for the following modifications apply.

10.3 The first two lines are replaced by.

Isolating switch accessible parts shall be insulated material, except for the following cases.

11 Earthing

IEC 60669-1 chapter apply.

12 Terminal

IEC 60669-1 of this chapter for the following modifications apply.

Table 2 is replaced by.

Table 2 rated current relationship and screw-type terminals can be connected between the copper conductor cross-section 1)

1) Remove the IEC in its original form here an endnote 2. In the UK, the rated current is less than 16A insulators allow widespread use. in England, IEC 60669-1 in Table 7 apply.

Rated current range

Hard wire (single or twisted) a Nominal cross-sectional area mm2 Thickest wire diameter mm 16b > 16 ~ 25 > 25-32 > 32 to 50 > 50-80 > 80 100 > 100 ~ 125 1.5-4 2.5 to 6 4-10 6 to 16 10 to 25 16 to 35 25 to 50 2.72 3.34 4.34 5.46 6.85 7.90 9.10 it allows the use of a flexible wire.

Each power supply terminal b isolating switch, in addition to code for 3 and 03, should be able to connect two 2.5mm2 wires. Rated voltage not exceeding 250V isolation switch, the hole can be effectively connected to two 2.5mm2 wires.

12.2.5 Table 3 is replaced by.

Table 3 verify the screw-type terminal mechanical strength of the tightening torque

Thread nominal diameter mm Torque Nm <=1.6 > 1.6-2.0 > 2.0 to 2.8 > 2.8 to 3.0 > 3.0 to 3.2 > 3.2-3.6 > 3.6 ~ 4.1 > 4.1 ~ 4.7 > 4.7 to 5.3 > 5.3 to 6.0 > 6.0-8.0 > 8.0 to 10.0 > 10.0 to 12.0 > 12.0 to 15.0 0.05 0.1 0.2 0.25 0.3 0.4 0.7 0.8 0.8 1.2 2.5 1.2 1.2 1.4 1.8 2.5 3.5 4.0 5.0 0.1 0.2 0.4 0.5 0.6 0.8 1.2 1.8 2.0 2.5 3.5 4.0 0.1 0.2 0.4 0.5 0.6 0.8 1.2 1.8 2.0 3.0 6.0 10.0 1.2 1.8 2.0 3.0 4.0 6.0 8.0 10.0

Table 3 (Continued)

Thread nominal diameter mm Torque Nm

Note 1. Column 1 is not applicable to emerge after the screw tightening the headless screws, the screws can not be used, and other blade wider than the diameter of the screw screwdriver tightening.

Column 2 applies to use a screwdriver to tighten the cap nut terminals.

Column 3 applies to other screws screwdriver to tighten the screws.

Column 4 applies to nuts not use a screwdriver to tighten the cap nut terminals.

Column 5 applies to other than using a screwdriver to tighten the screws or nuts of terminals in addition to the cover nut outside.

Column 6 applies to nuts center hole location on the switch.

Where screws have tightened with a screwdriver slotted hexagonal screw head, and the values in column 3 and column 5 and a different person, you want to test twice.

First, a hexagonal screw head torque specified in column 5 is applied, and then, and then applying a torque screwdriver specified in column 3. If the first column and 3 the same value of column 5, just experiment carried out with a screwdriver.

Note 2. terminals cover a predetermined nominal diameter is slotted bolt nominal diameter.

Note 3. The shape of the test screwdriver blade must be suitable for the test of the screw head.

Note 4. Do not use explosive force to tighten the screws and nuts.

Table 4 is replaced by.

Table 4 copper wire bend and pull test values 2)

2) Remove the IEC in its original form here an endnote 4. In the UK, the rated current is less than 16A insulators allow widespread use. In the UK, IEC 60669-1 in Table 4 apply.

A conductor cross-section mm2 Sleeve hole diameter b mm Height c mm the conductor corresponding weights kg 260 1.5 6.5 0.4 280 2.5 9.5 0.7 280 4.0 9.5 0.9 6.0 10.0 9.5 9.5 1.4 2.0 16.0 25.0 13.0 13.0 2.9 4.5 35 320 6.8 14.5 5,016,340 9.5 Correspondence between a mm2 and AWG gauge size See GB 17464.

b If the bushing hole diameter is not large enough to wire bundle can be inserted into the sleeve hole, you can switch to freshman size casing.

c high degree of tolerance = ± 15mm.

12.2.6 Table 5 is replaced by.

Table 5 pull-out test of the test data 3)

3) here to delete a endnotes IEC original Table 5. In the UK, the rated current is less than 16A insulators allow widespread use. in England, IEC 60669-1 in Table 5 apply.

4) Remove the IEC in its original form here an endnote 6. In the UK, the rated current is less than 16A insulators allow widespread use. in England, IEC 60669-1 in Table 6 apply.

5) Remove the IEC in its original form here of a 7 Endnotes. In the UK, the rated current is less than 16A insulators allow widespread use. in England, IEC 60669-1 in Table 7 apply.

Lead terminals can be connected to the Cross-sectional area/mm2 1.5 ~ 2.5 2.5 ~ 44 ~ 66 ~ 1010 ~ 1616 ~ 2525 ~ 3535 ~ 50 Rally/N 50 50 60 80 90 100 190 235

12.2.7 Table 6 is replaced by.

Table 6 wires consisting of 4)

Cross-sectional area mm2 the number of wire and wire nominal diameter Single stranded conductor wire 1.5 2.5 1 × 1.38 1 × 1.78 1 × 2.25 1 × 2.76 1 × 3.57 7 × 0.52 7 × 0.67 7 × 0.86 7 × 1.05 7 × 1.35 7 × 1.70 7 × 2.14 7 × 2.53 19 × 1.83

12.3.2 Table 7 is replaced by.

Table 7 Relationship screwless terminals rated current of copper wires and connections between the cross-sectional area of 5)

Current Rating

Nominal cross-sectional area mm2 the most coarse wire diameter mm Thickest soft wire diameter mm 16a 1.5 ~ 2.5 2.13 2.21 in addition to a code of 3 and 03 outside of isolating switch, a power supply terminal remaining switches should be connected to two 2.5mm2 conductors that connect two such guide when the line should be used in each of the terminals of each independent wire clamping member.

12.3.11 Table 8 is replaced by.

Table 8 verify screwless terminals during normal use of electricity and thermal stress test current

Current Rating

Test current

Conductor cross-section mm2 16 22 2.5

12.3.12 Tables 9 and 10 are replaced by.

Table 9 screwless terminals bending test with a hard copper conductor cross-section

Isolating switch rated current Test conductor cross-section mm2 1st test sequence 2nd test sequence 16 1.5 2.5

Table 10 bending test force 6)

6) Remove the IEC in its original form here endnote 10. In the UK, the rated current is less than 16A insulators allow widespread use. In the UK, IEC 60669-1 in Table 9 and Table 10 apply.

Test conductor cross-section mm2 the test force bending a wire 1.5 2.5 0.5 1.0 Stress applied to the wire to make a choice of the elastic conductor close to the limit.

13 Structural requirements

IEC 60669-1 chapter apply with the following modifications made.

Addition of provisions.

13.2.101 isolation switch when in the off position, the isolation distance shall be provided in accordance with the requirements necessary to meet the isolation.

Display contacts starting position by position and/or suitable method element is provided.

NOTE. Only lights not considered suitable method.

Starting element should be reliably connected to the moving contact. Starting element should not show off position unless all the contacts are in motion Off position.

Isolating switch shall be designed starting element can only be installed as a way to ensure proper contact and proper locking position, if isolated Off provide locking action. If the manufacturer or provide for measures locking isolation switch in off position, should only have all the contacts Possible locked in the off position.

Compliance is checked by inspection and test of checking 16.101.

13.12 Table 12 is replaced by.

Table 12 Ming-mounted cable diameter limit switch 7)

7) Remove the IEC in its original form here 12 Endnotes. In the UK, the rated current is less than 16A insulators allow widespread use. In the UK, IEC 60669-1 in Table 12 apply.

Current Rating

Cross-sectional area mm2 the number of wires Cable diameter limit Least mm maximum mm 4 1.5 ~ 16 7.6 19.5 2.5 to 6 324 ~ 10 324 ~ 10 6 to 16 6310 ~ 25 16 to 35 12525 ~ 50 8.6 9.6 9.6 10.5 15.5 18.5 18.5 twenty two 24.5 twenty four 25.5 30.5 27.5 29.5 35.5 31.5 37.5 41.5 38.0 42.0 44.0 48.5 Note. The table specified cable diameter limits to GB/T 5023.4 and type in 60227IEC 10 according to GB/T 5013.4 in 60245IEC 66 cable Basis and are for reference only.

Switching mechanism 14 IEC 60669-1 chapter apply.

15 Anti-aging, the switch housing provides protection and moisture

IEC 60669-1 chapter apply.

16 Insulation resistance and electric strength

IEC 60669-1 chapter apply with the following modifications made.

increase.

16.101 isolating switch should be suitable for use as isolation. When the new sample isolation switch should be in a clean, dry conditions, in the off position through Over each pole test terminals.

Compliance is checked by the following test checks.

1 according to the provisions of GB/T 17627.1 Figure, when in the off position, the contact with terminals connected together and connected to the contact Together with the load between the terminals, applied as GB/T 17627.1 specified in Figure 1 1.2/50 impulse voltage.

Pulse is generated by the pulse generator generates the positive and negative, the wave front time of 1.2µs, semi-peak time is 50µs, their public Difference.

Peak. ± 5%

Wavefront time. ± 30% Time to half value. ± 20% Pulse shape and connected to a pulse generator test isolation switch is adjusted together. For this purpose, you should use the appropriate divider and voltage sensors.

Allowing a slight fluctuation pulse, the amplitude of the pulse peak is less than 5%.

For the first half-wave fluctuations of the wave front, allowing the peak amplitude is less than or equal to 10%.

According isolating switch rated voltage, the test voltage shall table 101 selected.

Impulse voltage shall be applied three times, intervals of at least 1s.

There should be no discharge during the test.

Note 1. The surge impedance should test apparatus is 500ohm; considering the greatly reduced value.

Note 2. "discharge" the term includes the failure and insulation under electrical stress-related phenomena, including the current flow and pressure drop.

Table rated voltage and altitude test sites 101 and isolation switch related

Verification test voltage applied to the isolation of disconnection between the contacts Rated voltage the test voltage [kV] and the corresponding height of the sea level [m] Sea 20050010002000 Does not exceed 130 3.5 3.5 3.4 3.2 3 More than 130 6.2 5.8 6 5.6 5

17 Temperature

IEC 60669-1 chapter apply with the following modifications made.

Table for 15 after following modifications apply.

Table 15 Temperature rise test currents and copper conductor cross-section 8)

8) IEC Here there is a description NOTE. In the UK, the rated current is less than 16A insulators allow widespread use, IEC 60669-1 in Table 15 apply.

Current Rating

Test current

Nominal wire cross-sectional area mm2 4a 57.5 a rated voltage not exceeding 250V isolation switches should be connected to the cross-sectional area of 2.5mm2 wire test, codenamed except 3 and 03.

Note 5 in front of the penultimate paragraph is replaced by.

For the rated current is less than or equal to 63A disconnectors, terminal temperature rise should not exceed 45K; greater than the rated current of 63A Isolating switches, terminal temperature rise should not exceed 65K.

18 Breaking capacity

IEC 60669-1 chapter apply with the following modifications made.

Addition of provisions.