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Chinese Standard: 'GB50949-2013'
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GB 50949-2013
P GB 50949-2013
Construction code for sound reinforcement system
Issued by. Ministry of Housing and Urban-rural Development of PRC;
General Administration of Quality Supervision, Inspection
and Quarantine of the People's Republic of China.
Table of Contents
Foreword ... 5 
1 General provisions ... 7 
2 Terms ... 7 
3 System construction ... 8 
3.1 General requirements ... 8 
3.2 Preparing for construction ... 9 
3.3 Mounting of junction box and connecting box ... 10 
3.4 Cable laying ... 11 
3.5 Cable terminal connection ... 13 
3.6 Loudspeaker mounting ... 13 
3.7 Device installation ... 16 
3.8 System connection ... 18 
4 Initiation and adjustments for system ... 19 
4.1 General requirement ... 19 
4.2 System initiation ... 19 
4.3 System adjustment ... 22 
5 System-checking and trial operation for system ... 23 
5.1 System checking ... 23 
5.2 Trial operation ... 23 
6 Fitting of engineering documents ... 23 
Appendix A Engineering change approval ... 25 
Table B Arrival of material and device inspection declaration ... 26 
Appendix C Concealed works acceptance receipt ... 27 
Appendix D System installation acceptance receipt ... 28 
Appendix E Trial operation record of system ... 29 
Explanation of wording in this code ... 30 
List of quoted standards ... 31 
This standard is jointly compiled by the Ministry of Industry and Information
Technology Electronic Industry Standardization Institute Electronic Engineering
Standard Quota Office, China Electronics Technology Corporation Third
Institute and other relevant units in accordance with the requirements of the
Ministry of Housing and Urban-rural Development of PRC on the Notice of
Issuing and Publishing 2008 Engineering Construction Standard and Code
Establishment and Revision Plan (batch II) (JB [2008] No.105).
In the compilation process of this code, the compilation group makes extensive
investigation and study, conscientiously sums up practical experience, refers to
relevant domestic and international standards, extensively draws the views of
relevant national units and experts, extensively solicits opinions, makes
repeated revisions, and finalizes it after review.
This code is divided into 6 clauses and 5 appendixes. The main contents
include. General provisions, Terms, System construction, Initiation and
adjustments for system, Self-checking and trial operation for system, Fitting of
engineering documents.
The provisions of this code marked in bold are mandatory provisions, which
must be strictly implemented.
As for this code, the Ministry of Housing and Urban-Rural Development is
responsible the management and interpretation of mandatory provisions, the
Ministry of Industry and Information Technology is responsible for daily
management, the China Electronics Technology Corporation Third Institute is
responsible for the interpretation of specific technical contents. If any changes
or additions are found during the implementation of this code, please send
comments and relevant materials to the National Standards Management Team
of “Construction code for sound reinforcement system” of the 3rd Research
Institute of China Electronics Technology Corporation (Address. No.7,
Jiuxianqiao B North Road, Chaoyang District, Beijing, Zip Code 100015; Email.
zhengdianyong@ritvea.com.cn), for future reference in case of amendment.
The main drafting unit, the participating drafting unit, the main drafters and the
main reviewer of this code.
The main drafting organizations. Ministry of Industry and Information
Technology Electronics Industry
Standardization Institute Electrical
Engineering Standard Quota Station
Construction code for sound reinforcement system
1 General provisions
1.0.1 In order to regulate the construction of sound reinforcement system
engineering and ensure the construction quality of sound reinforcement system
engineering, this code is hereby formulated.
1.0.2 This standard applies to the construction of the fixed installation sound
reinforcement system of such buildings as all kinds of newly built, extended,
and reconstructed halls, stadiums and so on.
1.0.3 The sound reinforcement system engineering construction shall be in
Related standard:   GB/T 50200-2018  GB/T 51265-2018
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