GB/T 41108.1-2021 Safety of machinery—Safety requirements for interlocking devices—Part 1:Direct opening position switches

GB/T 41108.2-2021 Safety of machinery—Safety requirements for interlocking devices—Part 2:Interlocking devices with guard-locking GB/T 41108.3-2021 Safety of machinery—Safety requirements for interlocking devices—Part 3:Trapped key interlocking devices and systems

GB/T 14048.5-2017 Low-voltage switchgear and controlgear—Part 5-1:Control circuit devices and switching element—Electromechanical control circuit devices GB/T 15706-2012 Safety of machinery—General principles for design—Risk assessment and risk reduction GB/T 15706.1-1995 Safety of machinery—Basic concept, general principles for design—Part 1:Basic terminology, methodology GB/T 15706.1-2007 Safety of machinery—Basic concepts, general principles for design—Part 1:Basic terminology, methodology GB/T 15706.2-1995 Safety of machinery—Basic concepts, general principles for design—Part 2:Technical principles and specifications GB/T 15706.2-2007 Safety of machinery—Basic concepts, general principles for design—Part 2:Technical principles GB/T 18831-2002 Safety of machinery—Interlocking devices associated with guards—Principles for design and selection GB/T 18831-2010 Safety of machinery—Interlocking devices associated with guards—Principles for design and selection GB/T 18831-2017 Safety of machinery—Interlocking devices associated with guards—Principles for design and selection