GB27898.5-2011
Fixed water supply equipment for fire-protection - Part 5： Dual power fixed water supply equipment used for fire-protection
固定消防给水设备 第5部分：消防双动力给水设备
GB 27898.5-2011 is a current mandatory Chinese national standard for Fixed water supply equipment for fire-protection - Part 5： Dual power fixed water supply equipment used for fire-protection. It appears in the Machinery compliance cluster with a product safety focus and has an implementation date of Jun 1, 2012.
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 dual power fixed water supply equipment used for fire-protection, which consists of an electric motor pump set and an engine pump set. It is suitable for systems designed to continuously supply water to fire protection piping networks using a preset method. Equipment with similar working principles may also refer to this standard. It does not cover standalone electric or engine-driven fire pumps not configured as a dual-power system.
Technical requirements
The standard specifies the structural and functional requirements for dual power fire water supply equipment. Key requirements include the integration of at least two power sources (electric and engine-driven), centralized and compact arrangement of components, and robust installation. The equipment must feature a control cabinet with dual power inputs capable of automatic and manual switching within 2 seconds, along with a backup battery system. Regarding operational control, the system must support both pressure interval control and constant pressure modes for stable pressure maintenance. It mandates specific automatic start conditions for fire operations, such as sustained low pressure or fire alarm signals, and requires engine pump sets to have mechanical emergency start/stop devices. The equipment must ensure seamless switching between working and standby pumps during faults. The standard also outlines requirements for components like pressure maintaining valves, which must have adjustable and lockable relief pressures. Engine pump sets must be equipped with at least two sets of maintenance-free batteries capable of six consecutive start cycles, and fuel tanks must support at least 4 hours of continuous operation at rated conditions. GB 27898.1-2011 and GB 27898.2-2011 are frequently referenced for general component specifications.
Testing methods
Testing procedures evaluate the equipment's basic parameters, structural integrity, and control functionalities. Key tests include control function tests under simulated power outages and fault conditions to verify automatic switching and alarm responses. Continuous operation tests require the fire pump set to run for 6 hours at rated pressure without failure, and to endure 6 consecutive starts. Additional assessments cover water pressure strength, sealing performance, and noise measurement according to GB/T 3222.2. The standard also details inspection rules for both type testing and factory exit testing.
FAQs
What products are regulated under GB 27898.5-2011?
It regulates dual power fixed water supply equipment for fire protection, specifically systems combining an electric motor pump set with an engine (e.g., diesel) pump set.
Are there mandatory sections in GB 27898.5-2011?
Yes, Chapters 5, 7, and 8 are mandatory, while the remaining chapters are recommended. Compliance with the mandatory sections is essential for market access.
What are the power switching requirements for the control cabinet?
The control cabinet must have dual power inputs with automatic and manual switching capabilities, and the switching time must not exceed 2 seconds. It also requires a backup battery to maintain monitoring status for 4 hours during power outages.
The summary above provides a high-level overview of GB 27898.5-2011. 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 27898.5-2011 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C84
- ICS
- 13.220.10
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China
Relationships
Replaced by:GB 27898.5-2026 (Upcoming)