CJJ/T 220-2014 in English

CJJ/T 220-2014 Standard for city heating system signs

1 General provisions

1.0.1 This standard is formulated with a view to standardizing the making, usage and maintenance management of city heating system signs, and giving play to the warning and prompt role of signs.

1.0.2 This standard is applicable to the making, usage and maintenance management of signs in heating-related places such as city heating production, transmission and distribution.

1.0.3 The city heating system signs shall be composed of colours, graphic symbols and characters, and shall be simple, understandable and easily identifiable to convey clear and specific information.

1.0.4 The making, usage and maintenance management of city heating system signs shall also comply with the requirements of the current relevant standards of China in addition to this standard.

2 Terms

2.0.1 prohibition sign
graphical signs for prohibiting the unsafe behaviors

2.0.2 warning sign
graphical signs for reminding of paying attention to the surrounding environment to avoid possible danger

2.0.3 direction sign
graphical signs for forcing ones to take certain actions or preventive measures

2.0.4 information sign
graphical signs for indicating a message

2.0.5 special sign
graphical signs for expressing information specific to city heating system

2.0.6 on-ground sign
graphical signs, set on the ground, for indicating information about underground heating pipelines

2.0.7 above-ground sign
graphical signs, set on and above the ground, for indicating information about underground heating pipelines

2.0.8 under-ground sign
graphical signs, buried in the ground, for indicating the location and tracing of underground heating pipeline

2.0.9 confined space
enclosed or partially enclosed space, not designed as fixed workplaces, where the entry and exit is relatively confined and improper natural ventilation results in toxic hazardous combustibles & explosives accumulation or high temperature, deficient oxygen content

2.0.10 marker post
above-ground signs for indicating the location, properties, and parameters of buried pipelines

2.0.11 corner post
above-ground signs for indicating the horizontal angle positions and parameters of buried pipelines

2.0.12 test post
above-ground signs for indicating the cathodic protection and other parameters for monitoring and testing pipelines

3 Sign classification

3.0.1 City heating system signs are classified into safety signs and special signs.

3.0.2 Safety signs are classified into prohibition sign, warning sign, direction sign and information sign. Safety signs shall be able to clearly express specific safety information, consisting of graphic symbols, safety colours, geometric shapes and characters

3.0.3 Special signs are classified into pipeline sign, installation sign and pipeline sign of heating plant and station. Special signs shall be able to clearly express specific information of heating system, consisting of graphic symbols, safety colours, geometric shapes and characters
 
4. Safety sign

4.1 Prohibition sign

Foreword II
1 General provisions
2 Terms
3 Sign classification
4. Safety sign
4.1 Prohibition sign
4.2 Warning sign
4.3 Direction sign
4.4 Informative sign
5 Special sign
5.1 Pipeline sign
5.2 Installation sign
5.3 Pipeline signs of heating plant and station
6 Sign making
7 Use and maintenance
7.1 General requirements
7.2 Usage
7.3 Maintenance
Annex A Common types of on-ground sign post
Annex B Common types of above-ground marker post
Annex C Examples of painting on pipeline
Explanation of wording in this standard