GB20429-2006

Installation rule for water heaters

电热水器的安装规范

GB 20429-2006 é uma norma nacional chinesa obrigatória vigente: Installation rule for water heaters. Setor: Eletrônicos. Foco: Segurança de produtos. Entrada em vigor: 1 de mai. de 2007.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to the installation of electric water heaters specified in GB 4706.11 and GB 4706.12, covering both storage water heaters and instantaneous water heaters. It is mandatory for all manufacturers and professional installers operating within the Chinese market. It specifically governs the installation procedures, attachment requirements, and safety protocols for household and similar uses.

Requisitos técnicos

The standard mandates strict requirements for water heaters and installation attachments. Attachments such as expansion bolts, mounting brackets, mixing valves, and safety valves must comply with relevant national standards. Fasteners and mounting frames must possess sufficient mechanical strength and undergo anti-rust treatment to ensure long-term stability. Regarding installation location and surfaces, the unit must be positioned away from flammable gases, strong electromagnetic fields, and direct weather impacts. The mounting surface must be structurally sound, with a load-bearing capacity of no less than 4 times the mass of the water heater when fully filled with water. If the surface strength is insufficient, reinforcement measures are strictly required. For electrical safety, Class I water heaters must utilize an independent fixed socket with reliable grounding. The power supply should be a single-phase 220V or three-phase 380V AC source, with dedicated branch circuits rated at 1.5 times the heater's maximum current. Instantaneous water heaters must be connected via an air switch with leakage protection. The installation operation procedure requires professional installers to conduct thorough pre-installation checks of the user's power supply, water pressure, and wall capacity. Post-installation, the system must be checked for leaks, secure mechanical connections, and proper electrical grounding before trial operation.

Métodos de ensaio

The standard outlines key evaluation procedures, including mechanical strength tests for mounting brackets to ensure they do not slip, loosen, or bend under maximum load. It also specifies electrical safety inspections, which involve checking the live and neutral wire positions of sockets, verifying grounding reliability using resistance meters, and conducting leakage current checks during trial operation to ensure no electrical hazards exist on the heater's casing.

Perguntas frequentes

What products are regulated under GB 20429-2006?

It applies to electric water heaters specified in GB 4706.11 and GB 4706.12, covering both storage and instantaneous types. It is mandatory for all manufacturers and installers to follow the installation, attachment, and safety protocols defined in this standard.

Who is authorized to install electric water heaters under this standard?

The standard mandates that installation must be performed by professional installers who have received training from national institutions and hold valid certification. Unauthorized or unqualified personnel must not perform the installation.

How does GB 20429-2006 differ from general international IEC standards?

It aligns with the safety principles of international standards like IEC 60335-2-21 and IEC 60335-2-35 but adds specific Chinese requirements for installation surfaces, local electrical infrastructure, and mandatory installer certification.

The summary above provides a high-level overview of GB 20429-2006. 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 20429-2006 today to access all detailed parameters, tables, and testing procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: Y63
ICS: 97.100
Órgão competente: Ministry of Industry and Information Technology
Comitê técnico: Ministry of Industry and Information Technology