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GB/T 31070.1-2014Building intercom systems - Part 1: General technical requirements (English PDF)

楼寓对讲系统第1部分：通用技术要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 22, 2014

Implementation date

June 1, 2015

Scope

GB/T 31070.1-2014 is the English-translated version of 楼寓对讲系统第1部分：通用技术要求.

GB/T 31070.1-2014 is the Chinese standard "Building intercom systems - Part 1: General technical requirements". Its scope clause reads: This part of GB/T 31070 specifies the general technical requirements such as the composition, functional requirements, performance requirements, test methods and inspection rules of the building intercom system.

This part applies to the building intercom system used in residential and commercial buildings (hereinafter referred to as “system”).

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Document preview — GB/T 31070.1-2014

National Standard of the People's Republic of China

ICS: 13.310
Classification: A 91

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword4
1 Scope5
2 Normative references5
3 Terms, definitions and abbreviations6
3.1 Terms and definitions6
3.2 Abbreviations8
4 Composition of typical building intercom system8
4.1 Single-address building intercom system8
4.2 Multi-address building intercom system9
4.3 Combined building intercom system9
5 Functional requirements10
5.1 Basic functional requirements10
5.2 Extended functional requirements12
6 Performance requirements12
6.1 Audio characteristics12
6.2 Video characteristics14
6.3 Power supply voltage adaptability requirements15
6.4 Environmental adaptability requirements15
6.5 Safety requirements16
6.6 Electromagnetic compatibility requirements16
6.7 Marking and mechanical structure requirements17
7 Test method19
7.1 Test conditions19
7.2 Functional inspection19
7.3 Audio characteristics test19
7.4 Video characteristics test19
7.5 Power supply voltage adaptability test19
7.6 Environmental adaptability test20
7.7 Safety test20
7.8 Electromagnetic compatibility21
7.9 Marking and mechanical structure tests21
7.10 Enclosure protection capacity test22
8 Documentation23
9 Inspection rules23
9.1 Inspection classification23
9.2 Test items and sequences24
9.3 Batching rules25
9.4 Sampling rules25
9.5 Judgment rules26
9.6 Disposal of nonconformance product26
9.7 Batch re-submission27
Appendix A (Normative) Audio characteristic test28
A.1 Test conditions28
A.2 Overall loudness rating test28
A.3 Overall sensitivity/frequency characteristic test33
A.4 Acoustic distortion test33
A.5 Channel S/N test34
A.6 Sidetone masking rating test34
A.7 Idle channel noise test34
A.8 Ringing sound pressure test35
Appendix B (Normative) Video characteristics test36
B.1 Test conditions36
B.2 Test system connection36
B.3 Image resolution test37
B.4 Gray scale test37
B.5 Color reproduction test38
B.6 Low illumination adaptability test38

1 Scope

This part of GB/T 31070 specifies the general technical requirements such as the composition, functional requirements, performance requirements, test methods and inspection rules of the building intercom system.

This part applies to the building intercom system used in residential and commercial buildings (hereinafter referred to as “system”).

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard.

GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1.

Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection

GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (apply to inspection of process stability)

GB 4208 Degrees of protection provided by enclosure (IP code)

GB 9254-2008 Information technology equipment - Radio disturbance c...

GB/T 28181-2022 | GB/T 31488-2015 | GB/T 31458-2015 | GB/T 31070.3-2021 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 38 pages — is available in the English PDF.

Referenced standards

Normative references

GB 4208

Cited by

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