ДСТУ EN 14973:2016 Стрічки конвеєрні для підземного устатковання. Вимоги щодо електричної та пожежної безпеки (EN 14973:2015, IDT)

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EN 14973:2015

Conveyor belts for use in underground installations —
Electrical and flammability safety requirements

прийнято як національний стандарт
методом «підтвердження» за позначенням
Відповідає офіційному тексту

ДСТУ EN 14973:2016
(EN 14973:2015, IDT)

Стрічки конвеєрні для підземного устатковання.
Вимоги щодо електричної та пожежної безпеки

З наданням чинності від 2016-07-22

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Ignition hazard assessment

5 Electrical resistance

6 Frictional heating

6.1 Conveyor belts intended for general use in underground installations (Class A), and for use in hazardous installations where secondary safety devices are present (Classes B2 and C2)

6.2 Conveyor belts intended for use in installations where there is a potentially flammable atmosphere and where secondary safety devices are not present (Class B1)

6.3 Conveyor belts intended for use in installations where there is a potentially flammable atmosphere plus combustible dust or material conveyed, and where secondary safety devices are not present (Class C1)

7 Resistance to ignition

7.1 Conveyor belts intended for general use in underground installations (Class A), for use where there is a potentially flammable atmosphere (Classes B1 and B2), and for use in hazardous installations where secondary safety devices are present (Class C2)

7.2 Conveyor belts intended for use in installations where there is a potentially flammable atmosphere plus combustible dust or material conveyed, and where secondary safety devices are not present (Class C1)

8 Fire propagation

8.1 Introduction

8.2 Conveyor belts intended for general use in underground installations (Class A) and for use where there is a potentially flammable atmosphere (Classes B1 and B2)

8.2.1 General

8.2.2 Two metre propane burner test

8.2.3 Double burner test

8.2.4 Mid-scale high energy test

8.3 Conveyor belts intended for use in installations where there is a potentially flammable atmosphere plus combustible dust or material conveyed, and where secondary safety devices are not present (Class C1)

8.4 Conveyor belts intended for use in installations where there is a potentially flammable atmosphere plus combustible dust or material conveyed, plus additional fuel sources (fire load) and where secondary safety devices are present (Class C2)

8.4.1 Full scale gallery

8.4.2 Laboratory scale gallery

9 Marking

Annex A (informative) Hazards and risk assessment

A.1 Identification of hazards

A.2 Risk assessment

A.3 Methods for addressing hazards

Annex B (informative) Example of an ignition hazard assessment for a conveyor belt intended for use in a potentially explosive atmosphere

Annex C (informative) Suggested conveyor belt approval / compliance options

Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC

Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EC Directive 2006/42/EC

Bibliography