GB25521-2010
Mine screening equipment - Safety requirements
矿用筛分设备 安全要求
GB 25521-2010 is a current mandatory Chinese national standard for Mine screening equipment - Safety requirements. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Oct 1, 2011.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to mine screening equipment, specifically including vibrating screens, fixed screens, and rotating screens. It establishes safety requirements based on the physical properties and intended use of the equipment during its lifecycle. It does not cover general mechanical, electrical, hydraulic, or pneumatic hazards that are addressed by other foundational standards.
Technical requirements
The standard identifies a comprehensive list of 26 potential hazards associated with screening equipment during construction, transportation, installation, operation, maintenance, and dismantling. It mandates general safety measures aligned with GB/T 15706.1 and GB 18152, requiring protection against contact with hot/cold surfaces and ensuring adequate space for operation and maintenance. Specific design requirements are established to mitigate non-electrical dangers and material projection. This includes maintaining safe distances between vibrating and non-vibrating components, installing guards on rotating parts, and ensuring the foundation's natural frequency is significantly higher than the operating frequency to prevent resonance. The standard details stringent requirements for control systems, mandating emergency stop devices at all operating positions and automatic alarm systems for emergencies. Electrical equipment must have reliable earth fault protection, and equipment used in flammable or explosive environments must comply with specific explosion-proof standards. Additional requirements cover noise control, mandating low-noise components and limiting operator cabin noise. It also specifies limits for dust concentration in operator cabins, mandates adequate lighting levels, and outlines comprehensive instructions for installation, maintenance, and the provision of user manuals and warning labels.
Testing methods
Noise Measurement: Evaluated according to GB/T 13325 to ensure operator cabin noise does not exceed 85dB(A). Dust Concentration Measurement: Assessed using methods specified in GB/T 5748 to verify that dust levels in the operator cabin remain below 2mg/m³. Illuminance Verification: Checking that operating and maintenance areas meet minimum lighting requirements.
FAQs
What products are regulated under GB 25521-2010?
GB 25521-2010 regulates mine screening equipment, which includes vibrating screens, fixed screens, and rotating screens used in mining operations.
Is GB 25521-2010 a mandatory standard?
Yes, most chapters of GB 25521-2010 are mandatory, except for Chapter 3 (the hazard list), which is recommended. Manufacturers must comply with the mandatory safety requirements.
What are the specific noise limits for operator cabins under this standard?
The standard specifies that noise inside the operator cabin must not exceed 85dB(A), and the cabin should be equipped with sound insulation measures to protect the operator.
The summary above provides a high-level overview of GB 25521-2010. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 25521-2010 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- D95
- ICS
- 73.120
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology