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eLibrary > BS EN 416-1:1999 Single burner gas-fired overhead radiant-tube heaters - Safety >

BS EN 416-1:1999 Single burner gas-fired overhead radiant-tube heaters - Safety, 2002

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BS EN 416-1:1999 Single burner gas-fired overhead radiant-tube heaters - Safety, 2002

BRITISH STANDARD [Go to Page]
National foreword [Go to Page]
Foreword
Foreword to amendment A1
Foreword to amendment A2
Foreword to amendment A3
Contents
1 Scope
2 Normative references
3 Definitions [Go to Page]
3.1 Appliance and its constituent parts [Go to Page]
3.1.1 overhead radiant tube heater
3.1.2 single burner systems
3.1.3 inlet connection
3.1.4 mechanical joint
3.1.5 gas circuit
3.1.6 restrictor
3.1.7 gas rate adjuster
3.1.8 setting an adjuster
3.1.9 sealing an adjuster
3.1.10 putting an adjuster or a control out of service
3.1.11 injector
3.1.12 main burner
3.1.13 premixed burner
3.1.14 ignition burner
3.1.15 ignition device
3.1.16 primary aeration adjuster
3.2 Combustion circuit [Go to Page]
3.2.1 combustion products circuit
3.2.2 air supply and combustion products evacuation ducts
3.2.3 combustion chamber
3.2.4 flue outlet
3.2.5 draught diverter
3.2.6 terminal
3.2.7 terminal guard
3.3 Adjusting, control and safety devices [Go to Page]
3.3.1 automatic burner control system
3.3.2 air proving device
3.3.3 programming unit
3.3.4 programme
3.3.5 flame detector
3.3.6 flame signal
3.3.7 flame supervision device
3.3.8 flame simulation
3.3.9 pressure governor
3.3.10 adjustable pressure governor
3.3.11 volume governor
3.3.12 range rating device
3.3.13 automatic shut off valve
3.4 Operation of the appliance [Go to Page]
3.4.1 heat input
3.4.2 nominal heat input
3.4.3 volume flow rate
3.4.4 mass flow rate
3.4.5 start gas
3.4.6 start gas rate
3.4.7 start gas flame
3.4.8 flame stability
3.4.9 flame lift
3.4.10 light back
3.4.11 light back at the injector
3.4.12 sooting
3.4.13 yellow tipping
3.4.14 purge
3.4.15 first safety time
3.4.16 second safety time
3.4.17 extinction safety time
3.4.18 running condition of the system
3.4.19 controlled shut down
3.4.20 safety shut down
3.4.21 lock out
3.4.22 spark restoration
3.4.23 automatic re cycling
3.5 Gases [Go to Page]
3.5.1 calorific value
3.5.2 relative density
3.5.3 Wobbe index
3.5.4 test pressure
3.5.5 normal pressure
3.5.6 limit pressure
3.5.7 pressure couple
3.6 Conditions of operation and measurement [Go to Page]
3.6.1 reference conditions
3.6.2 cold condition
3.6.3 hot condition
3.6.4 equivalent resistance
3.6.5 thermal equilibrium
3.7 Country of destination [Go to Page]
3.7.1 direct country of destination
3.7.2 indirect country of destination
4 Classification of appliances [Go to Page]
4.1 Classification according to the nature of the gases used (categories) [Go to Page]
Table 1 - Classification of gases
4.2 Classification according to the gases capable of being used
4.3 Classification according to the mode of evacuation of the combustion products
5 Constructional requirements [Go to Page]
5.1 General
5.2 Requirements for adjusting, control and safety devices
5.3 Ignition devices
5.4 Main burner
5.5 Pressure test points
5.6 Injectors
6 Operational requirements [Go to Page]
6.1 Soundness
6.2 Heat inputs
6.3 Limiting temperatures
6.4 Ignition, cross�lighting and flame stability
6.5 Pressure governor
6.6 Combustion
6.7 Prolonged performance
6.8 Measurement of oxides of nitrogen, NO [Go to Page]
Table 1a) - NOx classes
7 Test methods [Go to Page]
7.1 General [Go to Page]
Table 2 - Characteristics of the test gases [Go to Page]
Table 3 - Calorific values of the test gases of the third family
Table 4 - Test gases corresponding to the appliance categories
Table 5 - Test pressure where no pressure couple exists [Go to Page]
Table 6 - Test pressures where a pressure couple exists
7.2 Construction and design
7.3 Safety of operation
7.4 Other pollutants [Go to Page]
Table 7a) Weighting factors
8 Marking and instructions [Go to Page]
8.1 Marking of the appliance and the packaging [Go to Page]
Table 8 - Symbol of the type of gas
8.2 Instructions
8.3 Presentation [Go to Page]
Figure 1 - Arrangement for measuring wall and ceiling temperatures
Figure 2 - Test of an appliance under abnormal draught conditions
Figure 3 - Test rig for type C appliances fitted with a horizontal terminal installed on a vertical wall
Figure 4 - Test rig for type C appliances fitted with a vertical terminal on a flat roof
Figure 5 - Test rig for type C appliances fitted with a vertical terminal on a roof
Annex A (informative) [Go to Page]
National situations
A.1 Categories listed in the body of the standard and marketed in the different countries
A.2 Appliance supply pressures corresponding to the categories given in
A.3 Special categories marketed nationally or locally [Go to Page]
A.3.1 Special categories [Go to Page]
Talbe A.1.1 - Single categories marketed
Table A.1.2 - Double categories marketed
Table A.2 - Normal supply pressures
Table A.3 - Test gases corresponding to categories marketed nationally or locally
A.3.2 Definition of special categories
A.3.3 Gas rate adjusters, aeration adjusters and governors
A.3.4 Conversion to different gases
A.4 Test gases corresponding to the special categories given in [Go to Page]
Table A.4 - Test gases corresponding to local situations
A.5 Gas connections in the various countries [Go to Page]
Table A.5 - Inlet connections permitted
A.6 Flue connections in the various countries [Go to Page]
Table A.6 - Standard flue pipe diameters
Annex B (normative) [Go to Page]
Appliance (flue) types
B.1Type B appliances with a fan in the combustion circuit [Go to Page]
Figure B.1.1 - Type B appliances with draught diverter
Figure B.1.2 - Type B appliances without draught diverter or other type of flue break
B.2 Type C appliances with a fan in the combustion circuit [Go to Page]
Figure B.2.1 - Type C
Figure B.2.2 - Type C
Annex C (informative) [Go to Page]
Equivalence rules
C.1 Conversion to categories within a restricted Wobbe index range
C.2 Conversion to categories within an identical Wobbe index range
C.3 Conversion to categories within a wider Wobbe index range
Annex D (informative) [Go to Page]
Calculation of the mass flow rate of flue gases [Go to Page]
Table D.1 - Characteristic values for flue gas mass flow rate calculations
Annex E (informative) [Go to Page]
Identification of the types of gas in use in the various countries [Go to Page]
Table E.1 - Means of identification of the types of gas in use in the various countries
Annex F (normative) [Go to Page]
Special national conditions
Annex G (informative) [Go to Page]
Example of calculation of the weighting factors for an appliance with several rates [Go to Page]
Table G.1 - Weighting
G.1
G.2
G.3
G.4
G.5 Total weighting [Go to Page]
Table G.2 Total weighting
Annex H (informative) [Go to Page]
Calculation of conversions of NO [Go to Page]
Table H.1 - Conversion of the emission value of NO
Table H.2 - Conversion of the emission value of NO
Table H.3 - Conversion of the emission value of NO
Table H.4 - Relationship of symbols in EN 416 1:1999 and CR 1404:1994
Annex I (informative) [Go to Page]
National situations of countries whose national bodies are CEN associate members
I.1 Categories listed in the body of the standard and marketed in the different countries [Go to Page]
Table I.1.1 - Single categories marketed
Table I.1.2 - Double categories marketed
I.2 Supply pressures of appliances [Go to Page]
Table I.2 - Normal supply pressures
I.3 Special categories marketed nationally or locally [Go to Page]
I.3.1 Special categories [Go to Page]
Table I.3 - Test gases corresponding to categories marketed nationally or locally
I.3.2 Definition of special categories
I.4 Gases and test pressures corresponding to the special categories given in [Go to Page]
Table I.4 - Test gases corresponding to national or local situations dry gas, at�15�ºC�and�1�013,25�mbar
Annex ZA (informative) [Go to Page]
Clauses of this European Standard addressing essential requirements or other provis... [Go to Page]

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