ДСТУ EN 676:2022 Надувные горелки для газообразного топлива (EN 676:2020, IDT)

ДСТУ EN 676:2022
(EN 676:2020, IDT)

Надувні пальники для газоподібного палива

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

European foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

3.1 General terms and definitions

3.2 Combustible gases

3.3 Test rig and combustion chamber

3.4 Composition of the gaseous combustion products

3.5 Burner operation

3.5.1 Gas rate

3.5.2 Permanent and intermittent burner operation

3.6 Gas line components

3.7 Adjusting, control and safety devices

3.8 Sequencing times

3.9 Combustion

3.10 Diagrams

4 Constructional and operational requirements - safety requirements and/or protective measures

4.1 Conversion to different gases

4.2 Construction

4.2.1 General

4.2.2 Design

4.2.3 Accessibility for maintenance and use

4.2.4 Soundness

4.2.5 Materials

4.2.6 Mounting

4.2.7 Connections

4.3 Equipment

4.3.1 Motors and fans

4.3.2 Electrical safety and EMC related to safety

4.3.3 Adjustable air damper

4.3.4 Gas line components

4.4 Functional and operational requirements

4.4.1 General function requirements

4.4.2 Operational requirements

4.4.3 Heat input range of the burner

4.4.4 Dual-fuel burner

4.4.5 Working diagram and test diagram

4.4.6 Determination of the flame stability and safe range of operation

4.4.7 Limiting values for combustion emissions

4.4.8 Starting characteristics

4.4.9 Appliance categories

4.4.10 Reset from lock-out

4.5 Machine safety requirements and/or protective measures

5 Test methods

5.1 General

5.1.1 Test gases for forced draught burners

5.1.2 Test pressures

5.1.3 Test rig

5.1.4 Types of test

5.2 Functional tests

5.2.1 General

5.2.2 Start-up

5.2.3 Pre-purge

5.2.4 Start-up heat input

5.2.5 Ignition

5.2.6 Safety times

5.3 Operation

5.3.1 External soundness

5.3.2 Resistance of the burner to over-heating

5.3.3 Temperature of the control and safety devices

5.3.4 Ignition — flame stability

5.3.5 Operation — flame stability

5.3.6 Auxiliary electricity consumption (ErP)

5.3.7 Sound power level LWA (ErP)

5.4 Tests to be carried out on the working and test diagrams

5.4.1 Tests at point 1

5.4.2 Tests at point Hp1

5.4.3 Tests at points 2, 5 (single, multi-stage and modulating burners) and 6 (multi-stage and modulating burners)

5.4.4 Tests at points Hp2 (single, multi-stage and modulating burners) and Hp6 (multi-stage and modulating burners)

5.4.5 Tests at point 3

5.4.6 Tests at point 4

5.4.7 Tests at first stage points or minimum heat input

5.4.8 Summary

5.5 Combustion

5.6 Start-up

5.7 Obtaining the heat input

5.7.1 Determination of heat input at reference conditions

5.7.2 Determination of heat input at ambient conditions

5.8 Electrical safety

5.9 Verification of safety and /or protective measures

6 Marking, labelling and packaging

6.1 General

6.2 Data plate

6.3 Other marking

6.4 Instructions for installation, adjustment, maintenance and operation

6.5 Packaging

6.6 Marking on the packaging

Annex A (normative) Determination of combustion characteristics — Carbon monoxide and nitrogen oxides, conversion and corrections

A.1 CO content (QCO), calculation from ml/m³ into mg/kWh

A.2 NOx content (QNOx), calculation from ml/m³ into mg/kWh

A.3 Correction for the influence of combustion air temperature and humidity on NOx emissions QNOx

A.4 NOx mean value for evaluating the NOx classes

A.5 CO2 content fCO2

A.6 Other conversion factors for emissions, calculated from ml/m³ into mg/m³ at 3 % O2 reference flue gas conditions

Annex B (informative) Examples of control box sequencing

Annex C (informative) Test gases

C.1 General

C.2 Conditions for preparation of the test gases

C.3 Practical application of the test gases

Annex D (informative) Gas connections conditions in common use in the various countries

Annex E (informative) Tests

E.1 Supplementary testing

E.2 Drawing review

E.3 Individual test and inspection

E.4 Test report

Annex F (informative) Use of alternative gas lines and test documentation

F.1 Use of alternative gas lines

F.2 Test documentation

Annex G (informative) Void

Annex H (informative) Check of the air proving device

Annex I (informative) Additional recommendations for specific applications

1.1 General

1.2 Pre-heating of the combustion air

1.3 Continuous working of the air ventilator

1.4 Variable excess of combustion air

1.5 Burner with start gas flame

1.6 Air filtering

Annex J (normative) Machine Directive (2006/42/CE) related hazards - safety requirements and/or protective measures

J.1 General

J.2 List of significant hazards

J.3 Safety requirements and /or protective measures

J.4 Verification of machine safety requirements and/or protective measures

J.5 Information for use

Annex K (normative) Additional requirements for burners with pressurized parts and burners firing pressurized bodies as defined in Pressure Equipment Directive (PED) 2014/68/EU

K.1 General

K.2 Pressurized parts

K.3 Electrical safety and gas line components

K.4 Gas pressure regulator

K.5 High gas pressure over load protection device

K.6 Automatic safety shut-off valve

K.7 Air proving device

K.8 Automatic burner control system

K.9 Means for draining and venting

K.10 General functions requirements

K.11 External safety limiter

K.12 Design according to Annex L in conjunction with EN 60204-1

K.13 Consideration: safety life cycle

K.14 Tests of pressurized parts

K.15 Other marking

K.16 Instructions for installation, adjustment, maintenance and operation

Annex L (normative) Electrical requirements – modifications to EN 60204-1:2006

L.1 Scope

L.2 Normative references

L.3 Terms and definitions

L.4 General requirements

L.5 Incoming supply conductor terminations and devices for disconnecting and switching off

L.6 Protection against electric shock

L.7 Protection of equipment

L.8 Equipotential bonding

L.9 Control circuits and control functions

L.10 Operator interface and machine-mounted control devices

L.11 Electrical equipment (Controlgear: location, mounting, and enclosures)

L.12 Conductors and cables

L.13 Wiring practices

L.14 Electric motors and associated equipment

L.15 Accessories and lighting

L.16 Marking, warning signs and reference designations

L.17 Technical documentation

L.18 Verification

Annex M (informative) Burner equipped to increase the efficiency

Annex N (informative) Electrical interfaces for burners

Annex O (informative) Environmental checklist EN 676

Annex P (informative) Guide for the applicability of the different standards on electrical safety

Annex Q (informative) Verification procedures for market surveillance purposes (ErP)

Q.1 General

Q.2 Minimization of the influence of the measurement procedure

Q.3 Verification of the declared parameters

Annex R (informative) Impact of the variations of the gas quality in EU gas grids to gas burners

Annex S (informative) A-Deviations

Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2009/142/EC (GAD) aimed to be covered

Annex ZB (informative) Relationship between this European Standard and the ecodesign requirements of Commission Regulation (EU) No 813/2013 aimed to be covered

Bibliography