GB/T 42284.5-2022Road vehicles - Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles - Part 5: Chemical loads (English PDF)

Foreword

This document was drafted in accordance with the rules given in GB/T 1.1-2020,

Directives for standardization - Part 1: Rules for the structure and drafting of

standardizing documents.

This document is Part 5 of GB/T 42284 Road vehicles - Environmental conditions and

testing for electrical and electronic equipment for drive system of electric propulsion

vehicles. The following parts have been issued for GB/T 42284:

-- Part 1: General;

-- Part 3: Mechanical loads;

-- Part 4: Climatic loads;

-- Part 5: Chemical loads.

This document modifies and adopts ISO 19453-5:2018 Road vehicles - Environmental

conditions and testing for electrical and electronic equipment for drive system of

electric propulsion vehicles - Part 5: Chemical loads.

Compared with ISO 19453-5:2018, this document makes the following structural

adjustments:

-- Unify the room temperature parameters involved in 4.4, 4.5, and 4.6 of ISO 19453-

5:2018 in 4.3 General test conditions;

-- Reflect the content of Table 3 of the original text in the form of an annex for user

reference; remove Clause 5, and add Annex A.

The technical differences - between this document and ISO 19453-5:2018 - and the

reasons are as follows:

-- Replace ISO 19453-1 (see 3, 4.9) and ISO 19453-4 (see Table 1) with the

normative references GB/T 42284.1 and GB/T 42284.4, to adapt to the technical

conditions in China;

-- Add "any method can be selected when there are multiple application methods" to

the footnote a of Table 1, to increase the operability of the document.

The following editorial changes have been made for this document:

-- Remove the ISO and IEC database addresses for standardized maintenance terms,

since the terms involved in this document have nothing to do with the ISO and

IEC databases for standardized maintenance terms;

-- Simplify the description in 4.8 of the original text, to facilitate the understanding

of the document;

-- Add "Note: In order to avoid residual reagents affecting test results, it is allowed

to remove residual reagents before checking the results" at the bottom of 4.8 in

the original text.

1 Scope

This document specifies requirements for the electric propulsion systems and

components with maximum working voltages according to voltage class B. It describes

the potential environmental stresses and specifies requirements recommended for

different stress levels on/in the vehicle.

This document applies to electric propulsion systems and components with maximum

working voltages according to voltage class B.

This document does not apply to high voltage battery packs (e.g., for traction) and

systems and components inside.

2 Normative references

The following documents are referred to in the text in such a way that some or all of

their content constitutes requirements of this document. For dated references, only the

version corresponding to that date is applicable to this document; for undated references,

the latest version (including all amendments) is applicable to this document.

GB/T 42284.1, Road vehicles - Environmental conditions and testing for electrical

and electronic equipment for drive system of electric propulsion vehicles - Part 1:

General (GB/T 42284.1-2022, ISO 19453-1:2018, MOD)

GB/T 42284.4, Road vehicles - Environmental conditions and testing for electrical

and electronic equipment for drive system of electric propulsion vehicles - Part 4:

Climatic loads (GB/T 42284.4-2022, ISO 19453-4:2018, MOD)

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T 42284.1

apply.