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GB/T 28026.1-2018Railway applications -- Fixed installations -- Electrical safety, earthing and the return circuit -- Part 1: Protective provisions against electric shock (English PDF)

轨道交通地面装置电气安全、接地和回流第1部分：电击防护措施

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 28026.1-2018 is the English-translated version of 轨道交通地面装置电气安全、接地和回流第1部分：电击防护措施.

GB/T 28026.1-2018 is the Chinese standard "Railway applications -- Fixed installations -- Electrical safety, earthing and the return circuit -- Part 1: Protective provisions against electric shock".

Its scope clause reads: This part of GB/T 28026 gives the ground device of the AC/DC electric traction power supply system and may be affected by the traction power supply system.

The electrical safety and protective measures required for the ground facilities. This section applies to the electrical safety requirements of the ground unit maintenance work of the electric traction power supply system.

This section applies to all new lines and existing lines to upgrade the electric traction power supply system, including. ---railway; ---guided public transport systems, such as. trams, elevated and underground railways, mountain railways, trolleybus systems and installations Contact system or contact rail magnetic levitation system; --- Material transportation system.

This section does not apply to. --- Underground mine traction power supply system; ---Cable cranes, rail transport platforms and similar transport equipment, temporary buildings (eg exhibition structure), because such facilities are currently not available The precedent for powering the net, they are not affected by the traction power supply system; --- Suspension cable car; --- Funicular railway. This section does not stipulate maintenance procedures.

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Document preview — GB/T 28026.1-2018

National Standard of the People's Republic of China

ICS: 45.060
Classification: S 80
Replacing: GB/T 28026.1-2011

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 Provisions for overhead contact area and electrical area
5 Direct electric shock protection measures
6 protective measures for contact electricity
7 Non-traction low-voltage power supply system protection regulations
9 Contact voltage limits and hazardous rail potential protection
10 Other protective measures
Appendix A (Normative Appendix) Warning Sign
Appendix B (informative) Typical fence
Appendix C (informative appendix) Principles for setting up AC power supply railway return systems
Appendix D (Normative) Use of Voltage Limiting Devices (VLD)
Appendix E (informative) Effective contact voltage and body current
Appendix F (Normative Appendix) Method for measuring effective contact voltage
Appendix G (informative) Guideline value for rail potential

1 Scope

This part of GB/T 28026 gives the ground device of the AC/DC electric traction power supply system and may be affected by the traction power supply system.

The electrical safety and protective measures required for the ground facilities.

This section applies to the electrical safety requirements of the ground unit maintenance work of the electric traction power supply system.

This section applies to all new lines and existing lines to upgrade the electric traction power supply system, including.

---railway;

---guided public transport systems, such as. trams, elevated and underground railways, mountain railways, trolleybus systems and installations

Contact system or contact rail magnetic levitation system;

--- Material transportation system.

This section does not apply to.

--- Underground mine traction power supply system;

---Cable cranes, rail transport platforms and similar transport equipment, temporary buildings (eg exhibition structure), because such facilities are currently not available

The precedent for powering the net, they are not affected by the traction power supply system;

--- Suspension cable car;

--- Funicular railway.

This section does not stipulate maintenance procedures.

2 Normative references

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

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

GB/T 1402 rail transit traction power supply system voltage (GB/T 1402-2010, IEC 60850.2007, MOD)

GB/T 2893.1-2013 Graphical symbols - Safety colours and safety signs - Part 1

Then (ISO 3864-1.2011, MOD)

GB/T 2900.1-2008 basic terminology of electrical terminology

GB/T 4208-2017 enclosure protection class (IP code) (IEC 60529..2013, IDT)

GB/T 10963.1 Electrical accessories - Protection against overcurrent protection for household and similar applications - Part 1 (GB/T 10963.1-2005, IEC 60898-1.2002, IDT)

GB/T 16895.21-2011 Low-voltage electrical installations - Part 4-41. Protection against electric shock (IEC 60364-4-41.

2005, IDT)

GB/T 17045-2008 General part of electric shock protection devices and equipment (IEC 61140.2001, IDT)

GB/T 21413.1 Railway rolling stock -- Electrical equipment - Part 1 . General conditions of use and general rules (GB/T 21413.1-2018, IEC 60077-1.2017, MOD)

GB/T 21414-2008 Regulations for the protection of electrical hazards of rolling stock for railway applications (IEC 61991.2000, IDT)

GB/T 21714 (all parts) Lightning protection [IEC 62305 (all parts)]

GB/T 28026.2 Electrical safety, grounding and recirculation of rail transit ground units - Part 2.

Protective measures for scattered current (GB/T 28026.2-2018, IEC 62128-2.2013, MOD)

TB/T 2809 | TB/T 3111 | GB/T 10411 | GB/T 42148 | GB/T 28026.3 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 111 pages — is available in the English PDF.

Referenced standards

Normative references

IEC 60850.2007 · ISO 3864 · IEC 60529 · IEC 60898 · IEC 60364 · IEC 61140.2001 · IEC 60077 · IEC 61991.2000 · GB/T 21714 · IEC 62305 · IEC 62128

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