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BS EN 17348:2022

BS EN 17348:2022

$215.11

Requirements for design and testing of vacuum cleaners for use in potentially explosive atmospheres

Published By Publication Date Number of Pages
BSI 2022 104
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This document specifies requirements for design, construction, testing and marking of hand-held, portable and transportable vacuum cleaners, including their accessories, constructed to Group II, categories 2G or 3G (of explosion groups IIA, IIB, IIB plus hydrogen), and to Group II, categories 2D or 3D (of explosion groups IIIA, IIIB and IIIC), intended for the collection of combustible or non-combustible dusts and flammable or non-flammable liquids in potentially explosive atmospheres. A potentially explosive atmosphere could be generated by the equipment during its intended use. NOTE 1 The accumulation of 1 mm or more of combustible dust on surfaces in a working area can create an explosive atmosphere (see reference to 1/32 in. of Depth of Dust Accumulation for Guidance for Area Electrical Classification in NFPA 654, 2017 Edition). This document applies to equipment driven by electric power and by pneumatic power. This document gives guidelines for dealing with significant hazards, hazardous situations and/or events relevant to vacuum cleaners when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. Typical applications for the concerned equipment are: – collection of dust produced by machinery at the point of generation; – general housekeeping around machinery and of working areas; and/or – collection of spills; – cleaning of equipment during maintenance operations; and/or – collection of specific waste. For the collection of dust in the presence of flammable liquids or vapours, a specific risk assessment is performed if this is part of the vacuum cleaners intended conditions of use and additional precautions beyond what is described in this document can be required. NOTE 2 The passage of dust through a vacuum cleaner will generate high levels of electrostatic charge which, in most situations, will be a potential source of ignition to a flammable gas or vapour atmosphere. For the collection of low-conductivity flammable liquids, a specific risk assessment is performed if this is part of the vacuum cleaners intended conditions of use and additional precautions beyond what is described in this document can be required. NOTE 3 The resulting liquid velocities are likely to be in excess of the limits required to maintain electrostatic charge generation at a non-hazardous level according to CLC/TR 60079 32 1:2018. This document does not apply to equipment used to collect toxic dusts where there is a health risk if dust passes through the filter elements. This document does not apply to the collection of dusts which have explosive and unstable properties (UN transport class 1, class 4.1 and class 5.2). NOTE 4 Hazards related to the use of vacuum cleaners for the collection of hazardous dusts are the subject of other standards. This document applies to vacuum cleaners with an internal dirty air volume of maximum 250 l. NOTE 5 250 l is the volume above which it is recognized a vacuum cleaner might not be considered as transportable by an operator, and above which additional explosion protections can be required. The present version of the document does not apply to battery operated equipment. NOTE 6 Battery operated equipment might be part of the scope of this document in a subsequent version. This document does not apply to vacuum trucks. This document applies to vacuum cleaners of canister and back-pack types. This document does not apply to upright vacuum cleaners. This document does not apply to motorized cleaning head accessories. NOTE 7 This document does not apply to household appliances which are the subject of other standards. This document does not apply to applications where the substances are conveyed into a separate receiving container. This document does not apply to equipment intended for use in underground parts of mines as well as those parts of surface installations of such mines endangered by firedamp and/or combustible dust. ..

PDF Catalog

PDF Pages PDF Title
2 undefined
10 1 Scope
11 2 Normative references
13 3 Terms and definitions
18 4 Safety requirements and protective measures
4.1 General
4.2 Risk assessment
19 4.3 Assignment of categories
4.4 Assignment of types and applicable requirements
20 5 Safety requirements regarding ignition hazards
5.1 Requirements applicable to all types of vacuum cleaners
5.1.1 Hot surfaces
5.1.1.1 Maximum surface temperature
21 5.1.1.2 Temperature classification
5.1.2 Thermal endurance
5.1.2.1 Parts of the vacuum cleaner relevant for explosion protection
5.1.2.2 Parts of the vacuum cleaner non-specifically relevant for explosion protection
22 5.1.3 Flames and hot gases
5.1.4 Mechanically generated sparks
5.1.4.1 General
5.1.4.2 Fans
23 5.1.4.3 Material pairing for parts of fan
5.1.5 Exothermic reactions
5.1.6 Electrical equipment in contact with the potentially explosive atmosphere
5.1.7 Equipment assembled inside the collection tank
24 5.1.8 Electrostatic hazards
5.1.8.1 General
5.1.8.2 Bonding and earthing
25 5.1.8.3 Constituent parts of the vacuum cleaner
27 5.1.8.4 Verification for earthing and bonding
28 5.2 Additional requirements applicable to electrical parts of vacuum cleaners
5.2.1 General
5.2.2 Electrical cables
5.2.3 Detachable power cords
5.2.4 Through flow motors
5.2.5 Open enclosure motors
5.2.6 Fasteners
5.2.7 Vacuum relief valve
29 5.3 Additional requirements applicable to dry type dust collectors
5.3.1 Filtration levels
5.3.1.1 Main filter (filtration Level 1)
5.3.1.2 High-efficiency particle air filter upstream (filtration Level 2)
30 5.3.1.3 Pre-filter upstream
5.3.2 Electrostatic hazards
5.3.3 Protection against the collection of hot particles
5.4 Additional requirements applicable to wet type dust collectors
5.4.1 Precipitation of the collected dust
5.4.2 Moisture capture
31 5.4.3 Generation of a gas explosive atmosphere
5.4.4 Electrostatic Hazards
5.4.5 Test applicable to wet type dust collector
32 5.5 Additional requirements applicable to liquid collectors
5.5.1 Suction of low conductivity liquids
5.5.2 Collection of dust with liquid collectors
5.5.3 Hot particles
5.5.4 Generation of a gas explosive atmosphere
33 5.5.5 Electrostatic hazards
6 Safety requirements regarding further significant hazards
6.1 Requirements applicable to all types of vacuum cleaners
6.1.1 General
6.1.2 Safety requirements and safety measures for control systems
6.1.2.1 Safety and reliability of control systems
6.1.2.2 Control devices
34 6.1.2.3 Start
6.1.2.4 Normal stop
6.1.2.5 Hand tool remote start and stop
6.1.2.6 Airflow control valves
6.1.2.7 Air or gas pressure regulator
35 6.1.2.8 Performance level of safety functions
6.1.3 Mechanical hazards
6.1.3.1 Wheels and stability
6.1.3.2 Access to internal parts
36 6.1.3.3 Moving parts of fans
6.1.4 Noise hazards
6.1.4.1 Reduction of noise at design stage
6.1.4.2 Noise emission measurement and declaration
37 6.1.5 Collapsing due to vacuum
6.1.6 Risks related to compressed air or gas
38 6.1.7 Vibration hazards
6.1.8 Substance hazards
6.1.8.1 General
6.1.8.2 Dust clouds
39 6.1.8.3 Dust accumulation
6.1.8.4 Spillage
6.1.8.5 Substances blow-out
6.1.8.6 Liquid disposal
6.1.8.7 Operating position
40 6.1.9 Compatibility with substances being collected
6.1.10 Overpressure
6.1.11 Metal oxidation (rust)
6.1.12 Ergonomics and handling
41 6.1.13 Errors of fitting
6.1.14 Maintenance
6.1.15 Failure of the power supply
6.2 Additional requirements applicable to the main filter for dry type dust collectors
42 6.3 Additional requirements applicable to liquid collectors
6.3.1 Suction cut-off system
6.3.2 Liquid adapted main filter
6.3.3 Liquid adapted protection element
6.4 Additional requirements applicable to non-electrical vacuum cleaners
43 6.5 Additional requirements applicable to portable hand-held vacuum cleaners
7 Information for use
7.1 General
7.2 Operation and maintenance manual
7.2.1 General
44 7.2.2 Technical features
7.2.2.1 Seal and filtration efficiency
7.2.2.2 Compressed air or gas requirements
7.2.2.3 Filtration system
45 7.2.2.4 Noise emissions
7.2.2.5 Vibrations
7.2.2.6 Bonding and earthing
7.2.2.7 Clearance between rotating and stationary elements of fans
7.2.3 Intended use and limitations of use
7.2.3.1 General
46 7.2.3.2 Dry type dust collectors
7.2.3.3 Wet type dust collectors
7.2.3.4 Liquid collector
7.2.3.5 Non-electrical vacuum cleaners
7.2.3.6 Maximum surface temperatures
47 7.2.3.7 Other considerations regarding limitations of use
7.2.4 Routine inspections, service and cleaning
49 7.2.5 Additional information for safe use
51 7.2.6 Warning for foreseeable misuses
7.3 Marking
7.3.1 General
7.3.2 Minimum marking
53 7.3.3 Additional marking according to this standard
7.4 Warning labels
7.5 Signal and warning devices
54 7.6 Examples of marking and warning labels
56 Annex A (informative)Methodological approach
57 Annex B (informative)Location of the power system in vacuum cleaners
61 Annex C (informative)Examples of vacuum cleaner types
65 Annex D (informative)Example of an Ignition Hazards Assessment
81 Annex E (informative)List of significant hazards
84 Annex F (informative)Seal and filtration efficiency test
F.1 General
F.2 Test aerosol
F.2.1 General
F.2.2 Monodisperse aerosol
F.2.3 Polydisperse aerosol
F.3 Aerosol generator
F.3.1 General
F.3.2 Monodisperse aerosol
F.3.3 Polydisperse aerosol
85 F.4 Particle counter
F.5 Test conditions
F.6 Test procedure
F.6.1 Preparatory checks
F.6.2 Starting up the aerosol generator
F.6.3 Test execution
86 F.6.4 Test for filtration efficiency
F.6.5 Seal test
F.7 Evaluation of test results
87 Annex G (normative)Localization of measured points for earthing and bonding tests
88 Annex H (informative)Noise test code
H.1 General
H.2 Determination of the A-weighted emission sound pressure level
H.3 Determination of the A-weighted sound power level
89 H.4 Measurements
H.4.1 General
H.4.2 Canister vacuum cleaners
H.4.3 Back-pack vacuum cleaners
H.5 Measurement uncertainty
90 H.6 Information to be recorded
91 H.7 Information to be reported
H.8 Declaration and verification of noise emission values
H.8.1 General
92 H.8.2 Example of noise emission declaration
95 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Directive 2014/34/EU aimed to be covered
98 Annex ZB (informative)Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered

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BS EN 17348:2022
$215.11