GB13614-2012

Electromagnetic environment requirements for-Short-wave radio receiving and direction finding stations

短波无线电收信台（站）及测向台（站）电磁环境要求

GB 13614-2012 es una norma nacional china obligatoria vigente: Electromagnetic environment requirements for-Short-wave radio receiving and direction finding stations. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 abr 2013.

La aplicabilidad depende del alcance del producto, la vía de certificación, los avisos de la autoridad competente y las reglas de transición. Solicite una traducción o verifique la fuente antes de usar esta ficha en una decisión de cumplimiento.

Resumen de cumplimiento

Este resumen está disponible por ahora solo en inglés.

Alcance y aplicabilidad

This standard specifies the electromagnetic environment requirements for short-wave radio receiving stations and radio direction finding stations. It is applicable to fixed radio centralized receiving stations and fixed radio direction finding stations operating within the frequency range of 1.5 MHz to 30 MHz. It does not apply to mobile or temporary radio stations. It references GB/T 7349-2002 for related measurement methods.

Requisitos técnicos

The standard categorizes short-wave radio receiving stations into three protection levels—Level 1, Level 2, and Level 3—based on their administrative subordination, business nature, communication distance, and equipment functions. It establishes the mandatory protection distances that must be maintained between these stations and various radio transmitting stations, including medium-wave, long-wave, and short-wave transmitters. Compliance with these spacing requirements is mandatory to ensure normal station operation. Furthermore, the standard outlines protection requirements against common electromagnetic interference sources. This includes specific spacing mandates for high-voltage overhead lines, different classes of highways, and industrial, scientific, and medical (ISM) equipment. The standard also provides guidelines for areas outside the 3dB lobe width of directional antennas. For radio direction finding stations, the standard defines strict electromagnetic environment protection forbidden zones and protection control areas. It details protection distances against various obstacles and interference sources, including overhead distribution lines, electrified railways, tall metal buildings, and natural features like ponds and rivers. Engineers must ensure no interference sources or obstacles exist within the designated protection zones.

Métodos de ensayo

The standard primarily relies on geometric spacing and theoretical calculations rather than traditional laboratory testing. However, it references GB/T 7349-2002 for the measurement of radio interference from high-voltage overhead power lines. Appendix A provides recommended calculation methods for determining protection distances, including evaluating interference from passive obstacles (like vertical grounding conductors) and using signal-to-noise ratio calculation methods for high-voltage overhead transmission lines and ISM equipment.

Preguntas frecuentes

What products are regulated under GB 13614-2012?

It applies to fixed radio centralized receiving stations and fixed radio direction finding stations operating within the frequency range of 1.5 MHz to 30 MHz.

Are there any updates from the previous version of GB 13614-2012?

Yes, it replaces GB 13614-1992 and GB 13617-1992. Key technical differences include a modified calculation formula for the protection distance against high-voltage overhead power lines, and the harmonization of protection distances for medium and short-wave transmitting stations.

How is protection distance determined under special circumstances?

When it is difficult to meet the standard spacing requirements, engineers can use the recommended calculation methods in Appendix A or conduct measurements of the actual radio interference sources and obstacles, coordinating based on social, economic, and technical factors.

The summary above provides a high-level overview of GB 13614-2012. To ensure complete compliance for your facilities entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 13614-2012 today to access all detailed parameters, tables, and calculation formulas.

Indicaciones de aplicabilidad

Tipo: Seguridad
CCS: L06
ICS: 33.100
Organismo competente: Ministry of Industry and Information Technology
Comité técnico: Ministry of Industry and Information Technology

Relaciones

Sustituye a:GB 13617-1992, GB 13614-1992