Detail of GB 28243-2012

Introduction of GB 28243-2012

1 Scope This standard specifies safety requirements for and measures taken for hydraulic press brakes. This standard is applicable to hydraulic press brakes, which are intended for cold working of metal or material partly of metal (hereinafter referred to as press brakes), which are to be used in the same way to work other sheet materials such as cardboard or plastic. This standard also applies to ancillary devices which are an integral part of the press brake. 2 Normative References The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendment) applies. GB/T 2893.2 "Graphical Symbols - Safety Colours and Safety Signs - Part 2: Design Principles for Safety Signs on Goods" (ISO 3864-2) GB 2894 "Safety Signs and Guideline for the Use" GB/T 3766 "Hydraulic Fluid Power-General Rules Relating to Systems" (ISO 4413) GB 4208 "Degrees of Protection Provided by Enclosure (IP Code)" GB 4584 "Specification of Active Opto-electronic Protective Devices for Presses" GB 5226.1-2008 "Safety of Machinery - Electrical Equipment of Machines -Part 1: General Requirements" (IEC 60204-1: 2005) GB 7247.1-2001 "Safety of Laser Products--Part 1: Equipment Classification, Requirements and Users Guide" (IEC 60825-1: 1993) GB/T 7932 "Pneumatic Fluid Power-General Rules Relating to Systems" (ISO 4414) GB/T 8196 "Safety of Machinery-Guards-General Requirements for the Design and Construction of Fixed and Movable Guards" (ISO 14120) GB 12265.3-1997 "Safety of Machinery-Minimum Gaps to Avoid Crushing of Parts of the Human Body" (EN 349: 1993) GB/T 14775 "General Ergonomics Requirements for Controller" GB/T 14776 "Ergonomics-Principles for Determining Dimensions of Work Places in Manufacturing Areas and the Dimensions" (DIN 33406) GB/T 15706.1-2007 "Safety of Machinery-Basic Concept, General Principles for Design-Part 1: Basic Terminology and Methodology" (ISO 12100-1: 2003) GB/T 15706.2-2007 "Safety of Machinery-Basic Concept, General Principles for Design-Part 2: Technical Principles" (ISO 12100-2: 2003) GB 16754-2008 "Safety of Machinery-Emergency Stop-Principles for Design" (ISO 13850: 2006) GB/T 16855.1-2008 "Safety of Machinery-Safety-related Parts of Control Systems--Part 1: General Principles for Design" (ISO 13849-1: 2006) GB/T 16856.1 "Safety of Machinery-Risk Assessment--Part 1: Principles" (ISO 14121-1) GB 17120 "Metalforming Machinery--Safety Requirements" GB 17888.1 "Safety of Machinery - Permanent Means of Access to Machinery--Part 1: Choice of a Fixed Means of Access between Two Levels" (ISO 14122-1) GB 17888.2 "Safety of Machinery - Permanent Means of Access to Machinery--Part 2: Working Platforms and Walkways" (ISO 14122-2) GB 17888.3 "Safety of Machinery - Permanent Means of Access to Machinery--Part 3: Stairs Stepladders and Guard-rails" (ISO 14122-3) GB 17888.4 "Safety of Machinery - Permanent Means of Access to Machinery--Part 4: Fixed Ladders" (ISO 14122-4) GB/T 18153 "Safety of Machinery-Temperatures of Touchable Surfaces-Ergonomics Data to Establish Temperature Limit Values for Hot Surfaces" (EN 563) GB 18209.2 "Safety of Machinery - Indication, Marking and Actuation--Part 2: Requirements for Marking" (IEC 61310-2) GB/T 18831-2010 "Safety of Machinery-Interlocking Devices Associated with Guards-Principles for Design and Selection" (ISO 14119: 1998 and Amd.1: 2007) GB/T 19671-2005 "Safety of Machinery-Two-hand Control Devices-Functional Aspects and Design Principles" (IS0 13851: 2002) GB/T 19876-2005 "Safety of Machinery-Positioning of Protective Equipment with Respect to the Approach Speeds of Parts of the Human Body" (ISO 13855: 2002) GB 23821 "Safety of Machinery-Safety Distances to Prevent Hazard Zones being Reached by Upper and Lower Limbs" (ISO 13857) GB 24388 "Noise Limits for Press Brake and Flanging Machine"

Contents of GB 28243-2012

Foreword I 1 Scope 2 Normative References 3 Terms and Definitions 4 List of Significant Hazards 5 Safety Requirements and/or Protective Measures 6 Verification of Safety Requirements and/or Protective Measures 7 Information for Use Annex A (Normative) Calculation of Minimum Safety Distances Annex B (Informative) The Response Time of the Press Brake Stopping Performance Annex C (Informative) Side Safeguarding for Manually Fed Press Brakes