铁路设施信号和电信设备检测

铁路设施信号和电信设备检测项目报价？  解决方案？  检测周期？  样品要求？

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GB/T 51279-2018公众移动通信高速铁路覆盖工程技术标准

本标准适用于设计时速为200km/h及以上高速铁路沿线新建、改建和扩建的面向公众的移动通信覆盖工程。

YD/T 5224-2015数字蜂窝移动通信网LTE FDD无线网工程设计规范

本规范适用于数字蜂窝移动通信网LTE FDD无线网工程设计。

ITU-T K.68-2008运营商在管理电信系统上电力系统产生的电磁干扰时负有的责任.5号研究组

This Recommendation gives the criteria defining situations to be examined and the installation conditions of both power and telecommunication plants under which the management voltages are applicable to the e.m. interference produced on telecommunication systems by the following power systems: a.c. electric power systems; d.c. electric power systems; a.c. electrified traction systems; d.c. electrified traction systems.

ITU-T L.56-2003沿铁路安装光缆系列L:建造,安装和电缆保护以及外部设备其它元素

This Recommendation describes methods to install optical fibre cables along railways. This Recommendation summarizes all the answers to the questionnaire prepared and circulated previously.

GSO IEC 62236-4-2014铁路设施.电磁兼容性.第4部分：信号和电信设备的发射和抗扰度

This part of IEC 62236 applies to signalling and telecommunication apparatus which is installed in the railway environment. Signalling and telecommunication apparatus mounted in vehicles is covered by IEC 62236-3-2. This standard specifies limits for emission and immunity and provides performance criteria for signalling and telecommunications (S&T) apparatus which may interfere with other apparatus in the railway environment, or increase the total emissions for the railway environment beyond the limits defined in the appropriate standard and so risk causing Electro-Magnetic Interference (EMI) to apparatus outside the railway system. Apparatus which complies with the emission levels of IEC 61000-6-4 will meet the emission requirements of this standard provided that emissions from any d.c. power port are within the emissions limits specified for a.c. power ports. The immunity levels of IEC 61000-6-2 will also be adequate except for the special case of apparatus as defined in Note 1 of Table 1. This standard provides the immunity requirements for such apparatus. The immunity levels given for the apparatus will in most cases allow the apparatus to perform as intended in the railway environment (see Note). The immunity level establishes a common reference for evaluating the performance of the apparatus when subject to interference resulting from direct exposure of the apparatus and associated cables to a radio frequency field, or by coupling of the interference from a remote source. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the emission and immunity limits in this standard at the communication frequency do not apply. The standard does not specify basic personal safety requirements for apparatus such as protection against electric shock, unsafe operation, insulation co-ordination and related dielectric tests. The requirements were developed for and are applicable to this set of apparatus when operating under normal conditions. Fault conditions of the apparatus have not been taken into account. The requirements and test methods also apply to telecommunications and signalling data and power lines connected to the equipment under test (EUT). The frequency range considered is from d.c. to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. For products in the scope of IEC 61000-3-2 or IEC 61000-3-3, the requirements of those standards apply. Testing methods are given in the basic standards listed in Clause 2. These specific provisions are to be used in conjunction with the general provisions in IEC 62236-1. NOTE The immunity and emission levels do not of themselves guarantee that the integration of apparatus will necessarily be satisfactory. The standard cannot cover all the possible configurations of the apparatus, but the test levels are sufficient to achieve satisfactory EMC in the majority of cas

GSO IEC 62498-3-2013铁路设施.设备的环境条件.第3部分：信号和电信设备

IEC 62498-3:2010 covers the design and the use of equipment and any portable equipment for signalling and telecommunications systems (including test, measure, monitoring equipment, etc.). The contents of the corrigendum of November 2010 have been included in this copy.

DIN EN 16431-2014轨道交通. 轨道. 空心枕木和垫块; 德文版本EN 16431-2014

The standard provides particular design guidance in the following areas:- geometry requirements- material and processing requirements- requirements for fastening points and insulating- test procedures.