GB25131-2010
Safety requirements for water chillers (heat pump) using the vapor compression cycle
蒸气压缩循环冷水（热泵）机组 安全要求
GB 25131-2010 is a current mandatory Chinese national standard for Safety requirements for water chillers (heat pump) using the vapor compression cycle. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jun 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 specifies the safety requirements and their determination for water chillers (heat pumps). It applies to motor-driven units utilizing the vapor compression refrigeration cycle. Other liquid cooling units may also refer to this standard, but it is primarily designed for commercial and industrial chiller applications. Manufacturers of vapor compression cycle chillers must comply with these mandatory safety provisions.
Technical requirements
The standard outlines comprehensive safety requirements addressing various hazards, including mechanical, electrical, and pressure-related risks. It mandates that units must be designed to prevent instability, sharp edge injuries, and component ejection. Units with a cooling capacity of 150kW or greater must be equipped with an emergency stop device. Regarding electrical safety, the standard specifies requirements for protection against electric shock, insulation resistance, dielectric strength, and winding temperature rise limits. It also details internal wiring rules, power connections, and grounding device specifications to ensure safe operation. IEC 60364-6-61:1986 is referenced for grounding circuit continuity. The standard also covers pressure vessels, requiring their design and manufacturing to comply with relevant standards like JB/T 4750. It sets rules for refrigerant and lubricant charging, prohibiting the arbitrary replacement of refrigerant types without updating the nameplate. Refrigerant leakage must be prevented to avoid asphyxiation or explosion hazards. Finally, it addresses material selection, requiring thermal insulation materials to be flame-retardant, non-toxic, and odorless. Noise and vibration levels must be minimized, and units must not exceed specified noise limits.
Testing methods
- Stability and Mechanical Strength: Verified through design calculations and manual inspection of protective guards. - Electrical Safety Tests: Includes insulation resistance testing, dielectric strength testing, and protection against electric shock using test probes per GB 4208-2008. - Moisture Resistance: Outdoor units undergo water spray tests followed by insulation and dielectric strength tests. - Grounding Continuity: Tested using a 12V, 10A current for at least 10 seconds to measure voltage drop. - Pressure Vessel and Refrigerant Checks: Verification of quality documents, nameplates, and leak tightness tests.
FAQs
What products are regulated under GB 25131-2010?
It regulates motor-driven water chillers and heat pumps that use the vapor compression refrigeration cycle.
Are the safety requirements in GB 25131-2010 mandatory?
Yes, Chapters 3, 4, 5, and 6 contain mandatory clauses that must be followed for compliance.
Does GB 25131-2010 specify requirements for emergency stop devices?
Yes, units with a cooling capacity of 150kW or greater must be equipped with an easily identifiable emergency stop device.
The summary above provides a high-level overview of GB 25131-2010. 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 25131-2010 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- J73
- ICS
- 27.200
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology