GB/T 19436.2-2025Electrical safety of machinery - Electro-sensitive protective equipment - Part 2: Particular requirements for equipment using active opto-electronic protective devices (AOPDs) (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents".

Drafting.

This document is Part 2 of GB (/T) 19436 "Electrical Safety of Machinery - Electrically Sensitive Protective Equipment". GB (/T) 19436 has been published.

The following parts were included.

---Electrical and mechanical safety - Sensitive protective equipment - Part 1: General requirements and tests (GB/T 19436.1);

---Mechanical and Electrical Safety Sensitive Protection Equipment Part 2: Special Requirements for Equipment Using Active Photoelectric Protective Devices (AOPDs) (GB/T 19436.2);

---Electrical and mechanical equipment sensitive protection devices, Part 3: Equipment using active photoelectric diffuse reflection protection devices (AOPDDR) Special requirements (GB/T 19436.3);

---Mechanical and Electrical Safety Sensitive Protection Devices Part 4: Special Requirements for Devices Using Visual Protection Devices (VBPDs) (GB/T 19436.4).

This document replaces GB/T 19436.2-2013 "Electrical Safety of Machinery - Sensitive Protective Equipment - Part 2: Use of Active Photoelectric Protection".

The "Special Requirements for AOPDs" standard, compared with GB/T 19436.2-2013, differs mainly in structural adjustments and editorial changes.

The changes are as follows.

---The definition of the term "beam apparatus" has been changed (see 3.204, 2013 edition);

---The term "surveillance blocking" has been removed (see 3.207 of the 2013 version);

---The term "geometrically constrained optical design" has been added (see 3.207);

---Several technical requirements in the "Sensitive Functions" and "General Principles" sections of the "Functional Requirements" have been revised (see 4.1.2.1, 2013 version 4.1.2.1);

--- "Optical performance" has been removed (see 4.1.2.2 in the 2013 version);

---The supplementary requirements for "AOPDs using reflective technology" and "AOPDs with transmitters and receivers in the same device" have been removed.

Supplementary requirements (see sections 4.1.2.3 and 4.1.2.4 of the 2013 edition);

---Added "AOPDs using retroreflective technology and AOPDs using hybrid transmitters and receivers in the same component".

Additional requirements (see 4.1.2.2);

---Several provisions in "Types of ESPE" have been changed (see 4.1.3, Chapter 4 of the 2013 edition);

---The provisions regarding "Special Requirements for Type 2 ESPEs" have been amended (see 4.2.2.3, 2013 version 4.2.2.3);

---Changed the requirements for maintaining AOPD detection capability integrity, as well as the design and manufacturing requirements (see 4.2.12, 2013 version).

4.2.12);

---Added requirements for test specimens for AOPDs using retroreflective technology and for AOPDs with transmitters and receivers in the same device.

(See 4.2.13);

---The requirements for "Radiation Intensity" regarding the different technologies used by the emitting device have been changed (see 4.2.15, 2013 version).

4.2.15);

---Added the correspondence between experiments and AOPD designs in the "General Principles" section of the "Experiments" section (see 5.1);

---The supplement to "Experimental Conditions" in the "Experiment" section has been deleted (see 5.1.2 in the 2013 version);

---The requirements and regulations for "functional testing" have been revised (see 5.2, 2013 version 5.2);

---The definition of wavelength in the "wavelength" test has been changed from "transmission wavelength" to "emission wavelength" (see 5.2.9, 2013 version).

5.2.9);

---The requirements for the "Radiation Intensity" test have been changed (see 5.2.10, 2013 version 5.2.10);

---The technical content in "Environmental Testing" has been changed and replaced with a new "Light Interference" test (see 5.4, 2013 version 5.4);

---Several technical terms in the "Random Documents" section have been changed, and new technical requirements have been added (see Chapter 7, Chapter 7 of the 2013 edition);

---The terms, technical requirements, and content of "Optional Functions of ESPE" have been revised (see Appendix A, Appendix A of the 2013 edition);

---Appendices B, D, E, and F have been deleted, including the "List of Single Faults Affecting ESPE Electrical Equipment" and "[List of Faults]".

"Compatibility assessment", "Verification of effective aperture angle using prism method", "Verification of optical performance using mirror method and deviation test" and "Base" "AOPD detection capability under complete occlusion" (see Annexes B, D, E and F of the 2013 edition).

This document is equivalent to IEC 61496-2:2020 "Safety of machinery - Electrically sensitive protective equipment - Part 2: Use of active photoelectric protective devices".

Special requirements for (AOPDs) equipment.

The following minimal editorial changes have been made to this document.

---The word order of the scope has been changed (see Chapter 1);

---Some translations have been changed. "element" is now consistently translated as "元素" (yùnjian), "assembly" as "单位" (danwèi), and "systematic" as "组织" (zizhili).

The translation of "analysis" is now consistently "systematic analysis," and the translation of "retro-reflective" has been revised from "reflection" to "return reflection." "Mirror" is also included.

The translation was revised from "mirror" to "reflector";

---The description of the selective feature "mask" has been changed to "hide" (see Appendix A).

This document was proposed by the China Machinery Industry Federation.

This document is under the jurisdiction of the National Technical Committee on Standardization of Electrical Systems for Industrial Machinery (SAC/TC231).

Introduction

Electrically sensitive protective devices (ESPEs) are suitable for machinery that poses a risk of injury to humans. They can restore the machinery to its original state before a person is in a dangerous situation.

To reach a safe state, thereby providing protection.

This document specifies the special requirements for the design, manufacture, and testing of electrically sensitive protective devices (ESPEs) used as mechanical protection equipment.

This applies only to ESPEs that use active photoelectric protection devices (AOPDs) to perform sensitive functions.

Each type of machinery has its own specific hazards, and this document is not intended to recommend the use of electrically sensitive protective devices (ESPEs) on any particular type of machinery.

For the purpose of application, the use of electrically sensitive protective devices (ESPEs) should be jointly coordinated among the suppliers of such devices, the users of the machinery, and the mandatory regulatory authorities.

Regarding this point, it is necessary to pay attention to relevant guidelines that have been formulated both domestically and internationally, such as GB/T 15706-2012.

GB/T 19436 is proposed to consist of four parts.

---Part 1: General Requirements and Tests. For non-contact electrically sensitive protective devices specifically designed for detecting the human body or parts thereof.

ESPE (Enhanced Safety Specifications) defines general requirements for product design, manufacturing, and testing to ensure that electrically sensitive protection devices meet the necessary safety performance levels.

The aim is to improve the overall safety level of mechanical and electrical equipment and protect the personal safety of employees.

---Part 2: Special Requirements for Equipment Using Active Optoelectronic Protection Devices (AOPDs). Building upon Part 1, this section outlines specific requirements for equipment using...

Active photoelectric protection devices (ESPEs) further specify special requirements for product design, manufacturing, and testing.

Ensure that such electrical sensitive protection devices (ESPEs) meet specific usage requirements.

---Part 3: Special Requirements for Equipment Using Active Optoelectronic Diffuse Reflection Protection Devices (AOPDDR). Based on Part 1 the document further specifies the product design, manufacturing, and testing requirements for electrically sensitive protection devices (ESPEs) that use active photoelectric diffuse reflection protection devices.

Special requirements for testing ensure that such electrical sensitive protection devices (ESPEs) meet specific usage needs.

---Part 4: Special Requirements for the Use of Visual Protection Devices (VBPDs). Building upon Part 1, this section outlines specific requirements for the use of visual protection devices (VBPDs).

Electrically sensitive protective devices (ESPEs) further specify special requirements for product design, manufacturing, and testing to ensure the safety of such electrically sensitive devices.

ESPE (Enhanced Safety Equipment) meets specific usage requirements.

Given the complexity of Electrically Sensitive Protective Equipment (ESPE) technology, many issues heavily rely on the analysis and expertise of specific testing and measurement techniques.

Knowledge. To ensure a high level of credibility, it is recommended that the document be independently reviewed by relevant experts.

This document is used in conjunction with GB/T 19436.1-2025.

This document supplements or modifies the relevant clauses in Part 1: If a clause in Part 1 is not mentioned in this document, then that clause...

Applicable to a reasonable extent. If this document is marked "supplementary," "modified," or "replaced," adjustments should be made when referencing the corresponding content in Part 1.

The clauses newly added to this document compared to Part 1 are numbered sequentially after the last existing number in Part 1: Compared to the new terms added in Part 1 (see Chapter 3) are numbered starting with 3.201.The new appendices are numbered sequentially starting with AA.

Mechanical and electrical safety sensitive protection equipment Part 2: Use of Active Photoelectric Protection Devices Special requirements for (AOPDs) equipment

1 Scope

The following replacements are made to this chapter of GB/T 19436.1-2025.

This document specifies the use of active photoelectric protection devices (AOPDs) for sensitive functions, specifically designed for electrical protection devices that detect the human body.

The design, manufacture, and testing requirements for (ESPE) are crucial for electrically sensitive protective devices, which are an integral part of safety-related systems. Special attention should be paid to the needle...

Its characteristics must be ensured to achieve appropriate safety-related performance. ESPEs can include some selective safety functions, and the requirements for these functions...

As given in GB/T 19436.1-2025 and Appendix A of this document.

This document does not specify the size or shape of the inspection area or its arrangement of hazardous components in any particular application, nor does it specify the location of the inspection area.

What constitutes a dangerous condition for any machine. This document is limited to the functions of the ESPE and how it is connected to the machine.

This document does not include AOPDs that use radiation wavelengths outside the range of 400nm to 1500nm.

This document may relate to applications involving the protection of non-human parts, such as protecting machinery or products from mechanical damage. In these applications...

In the meantime, additional requirements may be necessary, such as materials that must be identified by sensitive functions and have some characteristics that differ from those of humans.

This document does not cover electromagnetic compatibility (EMC) emission requirements.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

In addition to the references in this chapter of GB/T 19436.1-2025, the following also apply.

Additional referenced files.

ISO 13855 Safety of machinery - Positioning relative to the approach speed of human body parts Note. GB/T 19876-2012 Safety of machinery - Positioning of safety guards in relation to the speed of approach to human body parts (ISO 13855:2010, IDT) ments) Note. GB 20653-2020 Occupational High-Visibility Warning Clothing for Protective Services (ISO 20471:2013, MOD) Note. GB/T 7247.1-2024 Safety of laser products - Part 1: Equipment classification and requirements (IEC 60825-1:2014, IDT) IEC 62046 Safety of machinery - Application of protective equipment for detecting human presence Note. GB/T 29483-2013 Application of protective equipment for detecting human presence in mechanical and electrical safety (IEC/T S62046.2008, IDT) Note. GB/T 30117.1-2024 Photobiological safety of incoherent optical products - Part 1: General requirements (IEC 62471:2006, IDT)