Detail of JB/T 4315-2020

Introduction of JB/T 4315-2020

JB/T 4315-2020 Electrical control equipment of lifting appliance 1 Scope This standard specifies the terms and definitions, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage for electrical control equipment of lifting appliances (hereinafter referred to as electrical control equipment). This standard is applicable to electrical control equipment for lifting appliances with their AC rated voltage not exceeding 1,000V (50Hz or 60Hz) and their DC rated voltage not exceeding 1,500V. It may be used as a reference in case of other types of electrical control equipment. 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 amendments) applies. GB/T 3797-2016 Electrical control assemblies GB/T 3811-2008 Design rules for cranes GB/T 4208-2017 Degrees of protection provided by enclosure (IP code) GB/T 5226.32-2017 Electrical safety of machinery - Electrical equipment of machines - Part 32: Requirements for hoisting machines GB/T 6067.1 Safety rules for lifting appliances - Part 1: General GB/T 7251.1-2013 Low-voltage switchgear and controlgear assemblies - Part 1: General rules GB/T 13384 General specifications for packing of mechanical and electrical product GB/T 14048.1-2012 Low-voltage switchgear and control gear - Part 1: General rules GB/T 14048.10 Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching elements - Proximity switches GB/T 14048.12 Low-voltage switchgear and controlgear - Part 4-3: Contactors and motor-starters - AC semiconductor controllers and contactors for non-motor loads JB/T 6748 Crane console JB/T 12664 Control device of stator variable voltage for cranes JB/T 12880 Stainless steel resistor for lifting appliances JB/T 12989 Frequency converter for lifting appliances JB/T 13480 Master controller for cranes 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 5226.32-2017 and the following apply. 3.1 a place of shelter place which can protect the electrical control equipment from direct exposure to climate conditions, but may subject it to additional impacts such as wind-blown debris, dripping water, and air pollution 3.2 open structure type of structure where installed electrical components and conductors are directly accessible, offering no protection against external solids or liquids 3.3 protective structure type of structure of a complete set of equipment where all faces (except the mounting surface) are enclosed with a protection level not lower than IP2X.

Contents of JB/T 4315-2020

Foreword II 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 4.1 Use environment conditions 4.2 Structural requirements 4.3 Electrical components of electrical control equipment 4.4 Assembly and wiring of electrical control equipment 4.5 Performance requirements 5 Test methods 5.1 Visual inspection 5.2 Strength test of materials and components 5.3 Enclosure protection level test 5.4 Verification of electrical clearance and creepage distance 5.5 Insulation resistance test 5.6 Grounding continuity test 5.7 Dielectric properties test 5.8 Temperature rise test 5.9 Short-circuit withstand strength test 5.10 Vibration resistance test 5.11 Wiring and functional test 5.12 Test of electrical control equipment equipped with electronic devices 6 Inspection rules 6.1 Inspection classification 6.2 End-of-manufacturing inspection 6.3 Type inspection 7 Marking, packaging, transportation and storage 7.1 Marking 7.2 Packaging 7.3 Transportation and storage Annex A (Normative) Impact and drop robustness tests for button station enclosure A.1 Impact test A.2 Drop robustness test