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GB 20041.22-2009Conduit systems for cable management -- Part 22: Particular requirement -- Pliable conduit systems (English PDF)

电缆管理用导管系统第22部分：可弯曲导管系统的特殊要求

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Issued by

Standardization Administration of China

Level / Type

National · Mandatory

Issue date

May 6, 2009

Implementation date

February 1, 2010

Scope

GB 20041.22-2009 is the English-translated version of 电缆管理用导管系统第22部分：可弯曲导管系统的特殊要求.

GB 20041.22-2009 — GB/T 20041.1-2005 after this chapter apply for the following modifications. increase. GB 20041 of the provisions of this part of the flexible catheter system (including self-recovery conduit system) requirements.

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Document preview — GB 20041.22-2009

National Standard of the People's Republic of China

ICS: 29.120.10
Classification: K 65

Issued by: Standardization Administration of China

Preface
1 Scope
2 Normative references
3 Definitions
4 1 General requirements
5 General conditions for test
6 Category
7 Marking and documentation
8 Size
9 Structure
10 Mechanical properties
11 Electrical Properties
Thermal properties 4
13 Flame effect
14 4 external influences
15 4 Electromagnetic Compatibility
Appendix A (normative) Catheter System classification code (Normative) Determination of thickness of the material in Appendix B

Foreword

All technical content in this section is mandatory.

GB 20041 "Conduit systems for cable management" is divided into two parts.

--- Part 1. General requirements (GB/T 20041.1)

--- Part 2. Particular requirements (GB 20041.21 ~ 20041.24) - Part 21. Particular requirements for rigid conduit systems - Part 22. Particular requirements for flexible conduit systems - Part 23. Particular requirements for flexible conduit systems - Part 24. Particular requirements for conduit systems buried underground this section of Part 22 GB 20041. This section should be GB/T 20041.1-2005 used in conjunction.

This section identical with IEC 61386-22:2002 (first edition) "cable management - Part 22 catheter system. special flexible catheter Specific requirements. " this section of the Appendix A, Appendix B is a normative appendix.

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

This part of the National Standardization Technical Committee electrical accessories.

This section drafted by. China Electric Apparatus Research Institute, Foshan Gaoming Gu Plastic Co., Ltd. Hangzhou Hongyan Electric Co., Ltd., Guangdong Exit Inspection and Quarantine, Guangdong Science and Technology Industrial Co., Ltd. Liansu.

1 Scope

GB/T 20041.1-2005 after this chapter apply for the following modifications.

increase.

GB 20041 of the provisions of this part of the flexible catheter system (including self-recovery conduit system) requirements.

2 Normative references

The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 20041.1-2005 this chapter apply.

3 Definitions

GB/T 20041.1-2005 this chapter apply.

4 General requirements

GB/T 20041.1-2005 this chapter apply.

5 General conditions for tests

GB/T 20041.1-2005 this chapter apply.

Category 6

GB/T 20041.1-2005 of this chapter applies, except as follows.

6.1.11), 6.1.21), 6.1.31), 6.1.34), 6.1.41), 6.1.41) and 6.1.51) Not applicable .

7 Marking and documentation

GB/T 20041.1-2005 after this chapter apply for the following modifications.

increase.

7.1.101 conduit should be identified in accordance with the requirements of 7.1. Logo should at regular intervals along the full length of the catheter, the most suitable interval of 1m but not more than 3m, when the technology can not be implemented in the case of identity may mark the end of the attached product label or packaging.

Compliance is checked by inspection.

7.1.102 The manufacturer shall provide a minimum inner diameter of the document and in accordance with Chapter 6 Category Description of catheter system.

Compliance is checked by inspection.

Size 8

Alternative.

8.1 Threads shall comply with GB/T 17194 requirements.

GB 20041.22-2009/IEC 61386-22:2002 Non-metallic outer diameter of the catheter should be consistent with GB/T 17194 standard requirements.

If the metal and composite conduit designed to only rely on having installed in line with GB/T 17194 standard requirements for screw termination with catheter Member, the outer diameter need not comply with GB/T 17194 standard requirements.

Compliance is checked by compliance with GB/T 17194 stipulated gauge.

8.2 In addition to terminating conduit fittings, the thread can be formed conduit and conduit fittings shall comply with the requirements of the table 101. In addition to the declared tensile strength Catheter system accessories, the formation of non-threaded pipe fittings shall comply with the requirements of the table 102. The manufacturer shall declare the minimum inner diameter of the catheter system.

Compliance is checked by measurement.

Table 101 thread length

size

Threaded thread

Minimum length

10.5

12.5

14.0

17.0

19.0

11.5

13.5

15.0

18.0

20.0

Table 102 into the maximum diameter and the minimum length specification entered

size

Threaded thread

Enter the maximum diameter mm Enter the minimum length mm 6.5 8.5 10.5 12.5 16.5 20.5 25.5 32.6 40.7 50.8 63.9 75.9 6.0 8.0 10.0 12.0 16.0 20.0 25.0 30.0 32.0 42.0 50.0 50.0 GB 20041.22-2009/IEC 61386-22:2002

9 Structure

GB/T 20041.1-2005 this chapter apply.

10 Mechanical properties

GB/T 20041.1-2005 after this chapter apply for the following modifications.

10.2 Pressure test

For self-recovery conduit, with the following terms and alternative 10.2.4,10.2.5,10.2.6,10.2.7 10.2.8.

10.2.101 the pressure force exerted by the steel block (N) to be uniformly increased, within (30 ± 3) s, the reach values shown in Table 4. Sample the outer diameter of the deformation amount after flattening should be from 25% to 50% of the initial diameter.

If the outer diameter of the sample is crushed after the initial diameter of less than 25%, you should perform the following additional tests. Force uniform steel block pressed against the test Thus, until the (30 ± 3) s after the outer diameter of the sample was crushed after the initial diameter (30 ± 3)%, measured force.

A new sample is subjected to a uniform increase in pressure (the N), within (30 ± 3) s, the force reaches the value of the force measured above. The sample is crushed Outer diameter after deformation should be 25% to 50% of the initial diameter.

Pressure should then be removed and force the steel block. In removed pressure 15min, again measured in the sample is flattened at the outer diameter.

After the test, the difference between the outer diameter of the sample was crushed after the initial diameter and should not exceed 10% of the outer diameter measured before the test, and the sample will not be permitted Now without additional amplification normal or corrected vision visible cracks.

10.4 Bending test

Alternative.

10.4.101 conduit bending test should be carried out, the test apparatus 101 shown in FIG.

10.4.102 test shall be performed on the catheter 6 samples. The length of each sample shall be at least.

a) to the flat conduit, the nominal length of 30 times the outer diameter;

b) For the corrugated conduit and a length of 12 times the nominal outside diameter.

Minimum temperature remaining three should be based on a declaration form transport, use and installation; 3 samples shall be carried out at ambient temperature test Test, the deviation shall be ± 2 °C.

10.4.103 For the test, the sample should be carried out at ambient temperature in a vertical clamping device 101 shown in the bending test. Slow hand the sample was slowly bend to the left (90 ± 5) Returns the vertical position after °. Then bent to the right samples (90 ± 5) Returns the vertical position after °. Exercise should be repeated for the number of repetitions should be more than three times after the test specimen shall not return to the vertical position. The specimen should be kept in bent position 5min, the specimen is then bent to be tested is placed in the following way. straight portion and a plumb line (45 ± 5) °, one end of the sample up, and the other end Down.

For according to Table 1 Statement of transport, use, test the minimum temperature of the installation carried out, the sample should be clamped as shown in FIG. 101 in Bend Song on the test apparatus and a temperature above freezing box by pretreatment 2h, temperature deviation of ± 2 °C.

After the test, the specimen shall not appear in the absence of additional amplification normal or corrected vision visible cracks, and the test should enable compliance with Figure 102 Corresponding gauge is shown in its initial speed of the case does not have any of its own weight through the catheter.

10.5 Bending test

GB/T 20041.1-2005 this section does not apply.

10.6-destructive testing GB/T 20041.1-2005 this section does not apply.

GB 20041.22-2009/IEC 61386-22:2002

10.7 Tensile strength test

GB/T 20041.1-2005 except for the following provisions of this section are applicable outside.

10.7.3 Not applicable.

11 Electrical Performance

GB/T 20041.1-2005 after this chapter apply for the following modifications.

11.2 Shield ground test

Alternative.

Catheter samples and terminating conduit fittings shall be in accordance with the manufacturer's instructions and as shown in FIG. 103 are assembled fixed. To the ends of the transmission assembly the 25A, as shown in 50Hz ~ 60Hz frequency alternating current (no-load voltage of the power supply does not exceed 12V) 1min + 5 0s after 103 in FIG.

Measuring the ratio of the voltage drop across the assembly, the resulting voltage drop and current is resistor.

Resistance not exceeding 0.05ohm.

If you use special devices to connect conduit and conduit fittings, these devices should be sufficient to fully remove the protective coating of the catheter, or shall be made the manufacturer's prescribed protective layer removed.

12 Thermal Performance

GB/T 20041.1-2005 after this chapter apply for the following modifications.

12.3 Replacement.

Then, load removed, the sample was immediately placed in the vertical direction, so that in line with the corresponding gauge shown in FIG. 102 is not any one of its own weight the case where the initial velocity through the conduit, should be able to gauge catheter.

13 Flame effect

GB/T 20041.1-2005 this chapter apply.

14 External influences

GB/T 20041.1-2005 this chapter apply.

15 Electromagnetic Compatibility

GB/T 20041.1-2005 this chapter apply.

GB 20041.22-2009/IEC 61386-22:2002 Drawings.

1 --- sample;

2 --- Center;

3 --- catheter guide;

4 --- bracket.

size

Flat duct bellows

Note. In addition to the dimensions shown in this figure is not outside the rest of the design limit.

101 bending test apparatus of FIG.

GB 20041.22-2009/IEC 61386-22:2002 D manufacturer declares that 80% of the minimum inner diameter of the catheter Steel materials, hard and polished edges slightly thrown round Manufacturing tolerances +0.05 0 mm Tolerance and axial dimensions ± 0.2mm Allow wear 0.01mm Note. The figure in addition to the rest of the dimensions shown without design limitations.

102 in impact, bending, after checking minimum inner diameter conduit and the heat test gauge Drawings.

X = 12mm ± 2mm

1 --- 3mm metal plate;

2 --- optional locking nut;

3 --- By tapping hole or threaded fitting nut to split termination conduit fitting plate;

4 --- catheter.

103 Shield ground test conduit and conduit fittings termination assembly GB 20041.22-2009/IEC 61386-22:2002 Appendix A (Normative) Catheter system of classification codes GB/T 20041.1-2005 of this Appendix apply.

Appendix B

(Normative)

Determination of material thickness GB/T 20041.1-2005 of this Appendix apply.

GB 20041.22-2009/IEC 61386-22:2002

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 20041.1-2005Conduit systems for cable management -- Part 1: General requirements

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