BS EN 1539:2015
$215.11
Dryers and ovens, in which flammable substances are released. Safety requirements
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 86 |
This European Standard deals with all significant hazards, hazardous situations and hazardous events relevant to ovens and dryers in which flammable substances are released by evaporation from and curing of coating materials.
The specific significant risks related to the use of this machinery with foodstuff and pharmaceutical products are not dealt with in this European Standard.
This European Standard is only applicable to machines which are used as intended and under the conditions which are foreseeable as malfunction by the manufacturer (see Clause 4).
For ovens and dryers in which flammable substances are released by evaporation from and curing of coating materials, in which the concentration of these flammable substances shall not, under no circumstances, exceed 3 % of the LEL, EN 746‑1 and EN 746‑2 may be applied instead of this European Standard.
This European Standard is not applicable to:
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ovens for hardening metals;
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enamelling plants;
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portable heating systems for drying (for instance infrared radiant heaters, hot-air blowers, blow-dryers);
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solvent recovery plants;
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distillation and/or refraction plants;
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textile dry-cleaning systems.
This European Standard is not applicable to machinery manufactured before the date of its publication as EN.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 10 | 1 Scope 2 Normative references |
| 12 | 3 Terms and definitions |
| 18 | 4 Significant hazards |
| 24 | 5 Safety requirements and/or protective measures 5.1 General 5.2 Safety requirements against mechanical hazards 5.2.1 Shearing, crushing, drawing-in 5.2.2 Means of escape |
| 25 | 5.2.3 Safety requirements against slip and fall hazards 5.3 Safety requirements against electrical hazards 5.3.1 General 5.3.2 Electrical equipment 5.3.3 External influences on the electrical equipment 5.4 Safety requirements against thermal hazards |
| 26 | 5.5 Safety requirements against noise hazards 5.6 Safety requirements against radiation hazards |
| 27 | 5.7 Safety requirements against health hazardous substances 5.8 Fire protection and prevention 5.8.1 General 5.8.2 Materials and construction |
| 28 | 5.8.3 Heating systems 5.8.4 Prevention of ignition by hot surfaces 5.8.5 Prevention of ignition by overheating 5.8.6 Prevention of auto-ignition |
| 29 | 5.9 Explosion protection and prevention requirements 5.9.1 General 5.9.2 Type A-dryers 5.9.2.1 General |
| 30 | 5.9.2.2 Requirements depending on the maximum concentration of flammable substances |
| 33 | 5.9.2.3 Requirements for heating systems 5.9.2.4 Requirements for the input of flammable substances 5.9.2.5 Interlocking of forced ventilation, heating system and input of flammable substances |
| 35 | 5.9.3 Type B-dryers 5.9.3.1 General |
| 36 | 5.9.3.2 Additional requirements for continuous flow dryers 5.9.3.3 Additional requirements for chamber dryers |
| 37 | 5.9.3.4 Buildup of inerting |
| 38 | 5.9.3.5 Drying (Maintaining the inerting) |
| 39 | 5.9.3.6 Termination of the inerting |
| 40 | 5.9.3.7 Monitoring of oxygen concentration 5.10 Control systems 5.10.1 General 5.10.2 Requirements for type A-dryers |
| 43 | 5.10.3 Requirements for type B-dryers |
| 45 | 6 Verification of the safety requirements and/or measures |
| 47 | 7 Information for use 7.1 General |
| 48 | 7.2 Instruction handbook 7.2.1 General |
| 49 | 7.2.2 Information related to installation 7.2.3 Information related to operation |
| 50 | 7.2.4 Information related to maintenance |
| 51 | 7.3 Marking |
| 52 | Annex A (normative)Basis for air flow calculation of chamber dryers and continuous flow dryers A.1 Calculation basis for chamber dryers A.1.1 General A.1.2 Calculation of chamber dryers in case of rapid evaporation Method A |
| 56 | A.1.3 Determination in case of slow evaporation – Method B |
| 57 | A.2 Calculation basis for continuous flow dryers |
| 59 | Annex B (informative)Examples of calculation B.1 Chamber dryers B.1.1 Example 1: Calculation of the required minimum exhaust flow (see 3.20) |
| 60 | B.1.2 Example 2: Calculation of the maximum admissible amount of varnish |
| 62 | B.2 Continuous flow dryers B.2.1 Example 3: Calculation of the minimum exhaust flow rate |
| 64 | B.2.2 Example 4: Calculation of the minimum exhaust flow rate |
| 65 | B.2.3 Example 5: Calculation of the maximum admissible throughput of flammable substances |
| 67 | Annex C (normative)Concentration measurement in dryers C.1 Measurement of flammable substances C.1.1 General C.1.2 Requirements for concentration monitoring systems |
| 68 | C.2 Monitoring of oxygen concentration C.2.1 General C.2.2 Requirements for oxygen monitoring systems |
| 70 | Annex D (normative)Calculation of the lower explosion limit at drying temperature D.1 General D.2 Influence of temperature on the indicated value of concentration (physical influence) |
| 71 | D.3 Influence of the temperature of mixture on the kinetics of reaction (chemical influence) D.4 Consideration of chemical and physical influences |
| 72 | Annex E (normative)Explosion reliefs |
| 73 | Annex F (informative)Sensors for measurement of the volume flow F.1 Pitot-static tubes F.2 Venturi nozzles F.3 Wind vanes and plate anemometers F.4 Hot-wire anemometers F.5 Ultrasonic anemometers |
| 74 | F.6 Windmill anemometer |
| 75 | Annex G (normative)Requirements for energy-efficiency and reduction of environmental impact G.1 General G.2 Acquisition G.3 Production G.4 Use G.4.1 General G.4.2 Energy usage |
| 76 | G.4.3 Minimizing of emissions to air G.4.4 Minimizing of noise emissions G.5 End of Life |
| 77 | Annex H (informative)Guide for implementation of control system requirements for explosion protection for type A dryers H.1 General |
| 78 | H.2 Example for chamber dryer |
| 79 | H.3 Example for continuous flow dryer |
| 82 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC |
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