GB/Z 41305.3-2025Environmental conditions - Vibration and shock of electrotechnical equipment - Part 3: Equipment transported in rail vehicles (English PDF)

1 Scope

This document presents dynamic data obtained from transporting electronic equipment by rail vehicles, with the aim of generating loops from all available data.

The environment is described and compared with IEC 60721.

For each identified data source, data quality has been assessed and its consistency checked. Data quality checks and various...

Data source classification shall be carried out in accordance with the provisions of IEC /T R62131-1.

This document mainly involves data extracted from multiple different sources, and the quality and validity of this data are reliable to a certain extent.

This document also provides some data whose quality and validity cannot be verified in practice. This data is provided to facilitate verification from other sources.

The data used in this way is clearly labeled in subsequent chapters.

This document contains vibration and shock data from three different measurement tasks. one concerning the British rail system, and two concerning the US...

Data from the national railway system. Although one of these systems involves a less commonly used multimodal transport system worldwide, its data is still included.

This is to validate data from other sources. The vast majority of the presented railway measurement data comes from the United States, with the remainder from Western Europe. (Partial data sources are listed below.)

The display includes some older vehicles, and the source of railway data that was referenced when the severity level of IEC 60721 was established cannot be traced.

While most of the measurements in this document provide vibration and shock data, some measurements clearly focus on railway transport.

The impact conditions of the transport. The severity and frequency of the impact are mainly related to the frequency of shunting operations on a single freight car, and the frequency of shunting operations is further...

It depends on the operational strategies adopted by the national railway system. Most railway systems no longer use train formations for transporting sensitive goods.

(Transporting bulk raw minerals is a common exception). Other railway systems significantly reduce [the burden] by using high-quality freight cars and/or optimizing operational procedures.

Shunting impact loads. These strategies aim to minimize the impact severity on sensitive equipment such as electronic devices.

Not all verified data is provided in electronic form; for comparison purposes, much of the raw (non-electronic) data is presented in this document.

Manual digitization.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

Note. GB/T 2423 (all parts) Environmental testing for electrical and electronic products – Part 2.Test methods [IEC 60068-2 (all parts)]

Note 1.GB/T 4796-2008 Classification of Environmental Conditions for Electrical and Electronic Products – Part 1.Environmental Parameters and Their Severity [IEC 60721-1.2002,

IDT]

Note 2.GB/T 4797 (all parts) Classification of Environmental Conditions - Natural Environmental Conditions [IEC 60721-2 (all parts)]

Note 3.GB/T 4798 (all parts) Environmental conditions for the application of electrical and electronic products [IEC 60721-3 (all parts)]

Note 4.GB/T 20159 (all parts) Environmental Conditions Classification; Relationship between Environmental Conditions Classification and Environmental Testing; Conversion Guidelines [IEC 60721-4 (all parts)].

(Some)

IEC 60721-3 (all parts) Environmental conditions classification - Part 3.Classification of environmental parameter groups and their severity levels (Classifi- […]