GB/T 39154-2020Corrosion of metals and alloys - Cathodic protection of steel in concrete (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

The translation method used in this standard is equivalent to ISO 12696.2016 Cathodic Protection of Steel Bars for Concrete.

The Chinese documents that have a consistent correspondence with the international documents of the normative reference documents in this standard are as follows.

---GB/T 4208-2017 enclosure protection level (IP code) (IEC 60529.2013, IDT);

---GB/T 17045-2020 Electric shock protection devices and general parts of equipment (IEC 61140.2001, IDT);

---GB/T 19212.3-2012 Safety of power transformers, power supplies, reactors and similar products Part 3.Control transformers

Special requirements and tests for power supplies with built-in control transformers (IEC 61558-2-2.2007, IDT);

---GB/T 19212.5-2011 transformers, reactors, power supply devices and similar products with a power supply voltage of 1100V and below

Safety Part 5.Special requirements and tests for isolation transformers and power supply devices with built-in isolation transformers (IEC 61558-2-4.2009, IDT);

---GB/T 19212.14-2012 Transformers, reactors, power supply units and similar products with a power supply voltage of 1100V and below

Safety Part 14.Special requirements and tests for autotransformers and power supply devices with built-in autotransformers (IEC 61558-2-13.2009, IDT);

---GB/T 19212.17-2019 Transformers, reactors, power supply units and similar products with a power supply voltage of 1100V and below

Safety Part 17.Special requirements and tests for switching power supply devices and transformers for switching power supply devices (IEC 61558-2-16.2013, MOD);

---GB/T 20138-2006 The degree of protection of electrical equipment enclosures against external mechanical collisions (IK code) (IEC 62262.2002, IDT).

This standard has made the following editorial changes.

--- In order to be consistent with the existing standards, the standard name was changed to "Cathodic Protection of Steel Bars for Corrosion of Metals and Alloys".

This standard was proposed by the China Iron and Steel Association.

This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).

Drafting organizations of this standard. China Metallurgical Construction Research Institute Co., Ltd., Metallurgical Industry Information Standards Research Institute, Zhejiang Transportation Planning and Design Research Institute

Research Institute Co., Ltd., Hangzhou Benchuang Technology Co., Ltd., Shenzhen University, China Metallurgical Testing and Certification Co., Ltd.

1 Scope

This standard specifies the technical requirements for cathodic protection of steel bars in new and existing concrete structures, and is applicable to concrete structures.

Steel bars, prestressed steel bars, uncoated steel bars and organic coated steel bars in the structure.

This standard applies to steel in structures exposed to the atmosphere, buried, underwater and in a tidal environment.

Note 1.Appendix A describes the principle of cathodic protection and its application in concrete reinforcement.

Note 2.This standard does not apply to the cathodic protection of steel bars in non-concrete electrolytes, but applies to the cathodic protection of steel bars in cement-based materials. For example, early in the 20th century

For long-term steel frame masonry, brick and clay composite structures, this standard is applicable to such structures, but special consideration needs to be given to the design, materials and materials of cathodic protection.

installation.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated references, the latest version (including all amendments) applies to this document.

IEC 60502-1 rated voltage 1kV (Um=1.2kV) to 30kV (Um=36kV) extruded insulated power cable and accessories

Part 1.Rated voltage 1kV (Um=1.2kV) to 3kV (Um=3.6kV)

IEC 60529 enclosure protection class (IP code)

IEC 61140 Electric shock protection devices and general parts of equipment

IEC 61558-1 Safety of transformers, reactors, power supply units and their combinations Part 1.General requirements and tests

IEC 61558-2-1 Safety of power transformers, power supplies, reactors and similar products Part 2-1.General purpose separating transformers

Special requirements and tests for power supplies with built-in separation transformers

IEC 61558-2-2 Safety of power transformers, power supplies, reactors and similar products Part 2-2.Control transformers and built-in controls

Special requirements and tests for the power supply of the transformer

IEC 61558-2-4 Safety of transformers, reactors, power supply units and similar products with a power supply voltage of 1100V and below Part 2-

Part 4.Special requirements and tests for isolation transformers and power supply devices with built-in isolation transformers