GB/T 6995.4-2008Markings for electric wires and cables - Part 4: Identifications of insulated conductors of cables and wires for electrical appliances and equipments (English PDF)

Foreword

GB/T 6995 " Markings for electric wires and cables" is divided into five parts.

- Part 1. General requirements;

- Part 2. Standard colours;

- Part 3. Identifications of cables and wires;

- Part 4. Identifications of insulated conductors of cables and wires for electrical appliances and equipments;

- Part 5. Identifications of insulated cores of power cables.

This Part is part 4 of GB/T 6995.

This Part replaces GB 6995.4-1986 "Markings for electric cables and wires - Part 4:

Identifications of insulated conductors of cables and wires for electrical appliances and equipments".

Compared with GB 6995.4-1986, the main changes of this Part are as follows.

- Add the chapter "Normative References" (see Chapter 2);

- The chapter and clause numbers of "Conductor Identification" are adjusted; the numbers for the "Identification of Earthing Conductor or Similar Protection-oriented Conductors" are adjusted accordingly (Chapter 2 and Chapter 3 of previous edition; Chapter 3 and Chapter 4 of this edition);

- Add the chapter "Identification of Neutral Wire Conductor" (see Chapter 5);

- Adjust the chapter and clause numbers of "Identification of Other Conductors" (Chapter 4 of previous edition; Chapter 6 of this edition);

- In Table 1, the 2.7 in the first column is modified to be 2.4 (Table 1 of previous edition; Table 1 of this edition).

1 Scope

This Part of GB/T 6995 is applicable to the identification markings for the insulated conductor of wires and cables for rubber-insulated and plastic insulated electrical appliances and equipments.

In addition to the requirements of this Part, markings for insulated conductors shall also meet the corresponding requirements of GB/T 6995.1-2008 and GB/T 6995.2-2008.

2 Normative references

The following documents contain the provisions which, through reference in this Part of GB/T 6995, become the provisions of this Standard. For dated references, their subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard. However, the parties who enter into agreement based on this Standard are encouraged to investigate whether the latest versions of these documents are applicable. For undated reference documents, the latest versions apply to this Part.

GB/T 6995.1-2008 Markings for electric wires and cables - Part 1: General requirements

GB/T 6995.2-2008 Markings for electric wires and cables - Part 2: Standard colours

3 Conductor identification

3.2 For cables with 5 conductors or below, colour identification is preferred.

3.3 For cables with more than 5 conductors, the colour identification or number identification can be adopted.