GB13613-2011

Electromagnetic environment requirement for sea long range radio navigation stations and monitors

对海远程无线电导航台和监测站电磁环境要求

GB 13613-2011 es una norma nacional china obligatoria vigente: Electromagnetic environment requirement for sea long range radio navigation stations and monitors. Sector: Electrónica. Enfoque: Seguridad de productos. Entrada en vigor: 1 may 2012.

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 applies to the electromagnetic environment management of long-range radio navigation stations (Loran-C stations) and their monitoring stations. It is mandatory for facilities providing sea long-range radio navigation services. It does not apply to other types of sea radio navigation stations and monitors.

Requisitos técnicos

This standard specifies the electromagnetic environment requirements for Loran-C navigation stations and monitoring stations to ensure normal navigation information. The technical content is entirely mandatory. It defines the minimum Loran-C signal field strength and the required protection rates against various types of interference, including near-synchronous, non-synchronous, and frequency-shift keying interference within the 70kHz to 130kHz band. For physical infrastructure, the standard establishes strict exclusion zones. Navigation transmitting antennas must maintain a 500m clearance from overhead metal cables, railways, and tall buildings. Additionally, a 250m radius exclusion zone is mandated for 1000kV and above AC ultra-high voltage overhead power lines around both navigation and receiving antennas. The standard also details the calculation methods for comprehensive interference levels from multiple sources and the protection distance for ultra-high voltage power lines, referencing CISPR 18 guidelines. Compliance with these spatial and electromagnetic limits is essential for operational integrity.

Métodos de ensayo

Measurement of signal and interference field strength must comply with GB/T 6113.101. Average detection is used for measuring amplitude and frequency-modulated continuous wave interference, while quasi-peak or peak detection is applied for pulse-modulated signal and interference field strength. All measurements are conducted at ground level.

Preguntas frecuentes

What products or facilities are regulated under GB 13613-2011?

It regulates the electromagnetic environment for Loran-C navigation stations and monitoring stations used for sea long-range radio navigation.

Are there new requirements compared to the previous GB 13613-1992?

Yes, the 2011 version deletes content related to medium-range radio navigation stations (Loran-A) and adds protection requirements for 1000kV and above AC ultra-high voltage overhead power lines.

What is the operating frequency band specified for the navigation stations?

The stations operate at a center frequency of 100kHz, with 99% of the radiated energy contained within the 90kHz to 110kHz frequency band.

The summary above provides a high-level overview of GB 13613-2011. 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 13613-2011 today to access all detailed parameters, tables, and testing procedures.

Indicaciones de aplicabilidad

Tipo: Seguridad
CCS: M50
ICS: 33.200
Organismo competente: Ministry of Industry and Information Technology
Comité técnico: Ministry of Industry and Information Technology

Relaciones

Sustituye a:GB 13613-1992