BS/EN 62784-2018 pdf download.Vacuum cleaners and dust extractors providing equipment protection level Dc for the collection of combustible dusts – Particular requirements (IEC 62 784:2017).
This includes dust extractors, for wet suction or dry suction, intended for commercial indoor use with or without attachments, to collect combustible dust in an explosive dust atmosphere
The requirements for the construction and testing covered by this document are applied in addition to the requirements for commercial and industrial vacuum cleaners in
IEC 60335-2-69
This document supplements and modifies the requirements of IEC 60079-0. Whenever a requirement of this standard is in conflict with a requirement of IEC 60079-0 the requirement of this standard will take precedence.
The following power systems are covered
— mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances.
This document does not cover specific hazards associated with extreme ambient temperatures (less than —20 C or higher than 40 °C) unless otherwise marked by the manufacturer as given In IEC 60079-0 The temperatures shall not exceed the temperature range of —20 C to 60 :c
This document does not cover motorized cleaning heads for which additional requirements are under consideration,
This document does not apply to
— back-pack vacuum cleaners
— vacuum cleaners with a traction drive,
— vacuum cleaners and water-suction cleaning appliances for household use
(IEC 60335-2-2);
— floor treatment machines for commercial use (IEC 60335-2-67, IEC 60335-2-72);
— spray extraction machines for commercial use (IEC 60335-2-68):
— hand-held mains-operated electrical garden blowers, vacuums and blower vacuums
(IEC 60335-2-100);
— hand-held and transportable motor-operated electric tools (IEC 62841 series);
— appliances for medical purposes (IEC 60601-1);
— machines designed for use in corrosive environments,
— machines designed for picking up flammable liquids.
— machines designed for use in explosive environments due to the presence of explosive substances or pyrotechnical products, or unstable chemical substances
This includes dust extractors, for wet suction or dry suction, intended for commercial indoor use with or without attachments, to collect combustible dust in an explosive dust atmosphere
The requirements for the construction and testing covered by this document are applied in addition to the requirements for commercial and industrial vacuum cleaners in
IEC 60335-2-69
This document supplements and modifies the requirements of IEC 60079-0. Whenever a requirement of this standard is in conflict with a requirement of IEC 60079-0 the requirement of this standard will take precedence.
The following power systems are covered
— mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances.
This document does not cover specific hazards associated with extreme ambient temperatures (less than —20 C or higher than 40 °C) unless otherwise marked by the manufacturer as given In IEC 60079-0 The temperatures shall not exceed the temperature range of —20 C to 60 :c
This document does not cover motorized cleaning heads for which additional requirements are under consideration,
This document does not apply to
— back-pack vacuum cleaners
— vacuum cleaners with a traction drive,
— vacuum cleaners and water-suction cleaning appliances for household use
(IEC 60335-2-2);
— floor treatment machines for commercial use (IEC 60335-2-67, IEC 60335-2-72);
— spray extraction machines for commercial use (IEC 60335-2-68):
— hand-held mains-operated electrical garden blowers, vacuums and blower vacuums
(IEC 60335-2-100);
— hand-held and transportable motor-operated electric tools (IEC 62841 series);
— appliances for medical purposes (IEC 60601-1);
— machines designed for use in corrosive environments,
— machines designed for picking up flammable liquids.
— machines designed for use in explosive environments due to the presence of explosive substances or pyrotechnical products, or unstable chemical substances
Vacuum cleaners covered by this document minimize the risk of ignition during normal operation (intended use) By fulfilling the requirements specified in this standard, any misuse which can reasonably be anticipated is addressed. The requirements given in this standard apply to each machine, including all accessories, such as nozzles, hoses, unless otherwise stated
4.2 General protection requirements
Vacuum cleaners shall be constructed as follows
1) The machine already fulfils the requirements for commercial vacuum cleaners of
IEC 60335-2-69
2) The motor, switch, cord and plug shall comply with the requirements of IEC 60079-31 for EPL Dc.
3) The following parts of the vacuum cleaner shall be conductive or electrostatic dissipative,
bonded and connected to the earth terminal of the connection facility
a) impeller,
b) tools
C) non-metal parts of the machine,
d) hose.
4) Isolated metal parts coming Into contact with the dust are not permitted All metal parts are bonded and connected to the earth terminal of the connection facility
5) The suction air through the hose shall be filtered prior to contacting the impeller of the motor Flow-through motors are not permitted
6) Only electrical components of EPL Da can be located inside of the dust collection containment
4.3 Classification according filter construction
Vacuum cleaners covered by this standard provide dust classes L, M, or H in accordance with
IEC 60335-2-69
4.4 Supply connection and external flexible cords
Supply cords and plugs shall comply with IEC 60079-31 for EPL Dc if the connection is intended to be made within the hazardous area
4.5 ConnectIon facilities and termination compartments
Terminal compartments for external conductors shall comply with IEC 60079-31 for EPL Dc.BS/EN 62784-2018 pdf download.