GB5135.10-2006
Automatic sprinkler system-Part10:Pressure switch
自动喷水灭火系统 第10部分:压力开关
GB 5135.10-2006 is a current mandatory Chinese national standard for Automatic sprinkler system-Part10:Pressure switch. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Dec 1, 2006.
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 specifically to pressure switches used in automatic sprinkler systems. It is not applicable to pressure switches used in gas fire extinguishing systems or explosion-proof pressure switches used in flammable and explosive hazardous environments. Engineers designing or certifying fire suppression components for the Chinese market must verify compliance with this standard.
Technical requirements
The standard mandates that the rated working pressure of the pressure switch shall not be lower than 1.2 MPa. It defines specific action pressure ranges for different types of switches, such as ordinary and pre-action devices. Manufacturers must ensure their products actuate strictly within these defined pressure limits to guarantee system reliability. Physical and structural integrity requirements are comprehensive, covering strength testing under 1.5 times the rated working pressure without damage or leakage. The standard also sets strict criteria for contact resistance, mandating that it shall not exceed 0.1Ω under normal atmospheric conditions. Devices must feature at least one pair of normally open and normally closed contacts to be compliant. Environmental durability is a core focus, specifying performance criteria for damp heat resistance, vibration, and collision. The device must not misfire during these physical stress tests. Furthermore, it includes stringent corrosion resistance requirements, specifically evaluating the device against both salt spray and sulfur dioxide (SO2) environments, referencing test methodologies adapted for harsh industrial conditions. Electrical safety is addressed through insulation resistance and dielectric strength requirements. The device must withstand specific AC voltage levels for 60 seconds without surface arcing, corona, or breakdown. All mandatory chapters regarding model compilation, requirements, and inspection rules must be strictly followed for product certification.
Testing methods
The standard outlines several critical testing procedures, including the Action Test, which verifies the actuation pressure and contact reliability. The Strength Test evaluates structural integrity under hydrostatic pressure. Work reliability tests are conducted across varying temperatures to simulate real-world operational cycles. Additionally, it specifies procedures for Salt Spray and SO2 Corrosion Tests, Vibration and Collision Tests, as well as Insulation and Withstand Voltage Tests, referencing GB/T 191 for packaging evaluation.
FAQs
What products are regulated under GB 5135.10-2006?
This standard applies specifically to pressure switches used in automatic sprinkler systems. It does not apply to pressure switches used in gas fire extinguishing systems or explosion-proof pressure switches used in flammable and explosive hazardous environments.
Are there any updates from the previous version of GB 5135.10-2006?
Compared to the previous GA 29-1992, this standard unifies the model compilation for pressure switches, provides more detailed regulations on action pressure values, and adds a sulfur dioxide (SO2) corrosion test. It also includes specific requirements for marking and connection methods.
What are the specific pressure requirements for pressure switches under this standard?
The standard specifies that the rated working pressure of the pressure switch shall not be lower than 1.2 MPa. The action pressure varies by type: for ordinary types, it is 0.035 MPa to 0.05 MPa, and for pre-action devices, it is 0.03 MPa to 0.05 MPa. Manufacturers must ensure their products meet these specific pressure thresholds.
The summary above provides a high-level overview of GB 5135.10-2006. 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 5135.10-2006 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C83
- ICS
- 13.220.20
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China