CEN/TC 148 - Continuous handling equipment and systems - Safety

This document is a collection of interpretations related to the EN 619:2022.
Interpretations aim to improve the understanding of the clause(s) they are referring to and by that facilitating common understanding between manufacturers, installers, notified bodies, inspection bodies and national authorities.
Interpretations do not have the same status as the European standards to which they are related.
However, the application of interpretations give to the interested parties confidence that the relevant European standard has not been wrongly applied. This document is not applicable to the machinery or machinery components manufactured before the date of its publication.

This document deals with requirements for machine design, transport, installation, commissioning, operation, adjustment, maintenance and cleaning to minimize the hazards listed in Annex F. These hazards can arise during the operation and maintenance of continuous handling equipment and systems when carried out in accordance with the specifications given by the manufacturer or his authorized representative. This document deals with safety related technical verification during commissioning.
This document applies to mechanical handling devices as defined in Clause 3, singly or combined to form a conveyor system, and designed exclusively for moving unit loads continuously on a predefined route from the loading to the unloading points, possibly with varying speed or cyclically. In general, it also applies to conveyors which are built into machines or attached to machines if not stated otherwise in a machine specific standard.
Safety requirements and/or measures in this document apply to equipment used in all environments. However, additional risk assessments and safety measures need to be considered for uses in severe conditions, e.g.
-   freezer applications,
-   high temperatures,
-   corrosive environments,
-   strong magnetic fields,
-   potentially explosive atmospheres,
-   radioactive conditions and loads the nature of which could lead to a dangerous situation (e.g. molten metal, acids/bases, especially brittle loads, explosives),
-   operation on ships and earthquake effects and
-   contact with foodstuff.
This document does not cover hazards during decommissioning.
This document does not apply to conveying equipment and systems used underground or in public areas and to aircraft ground support equipment. In public areas only baggage carousels and check-in conveyors for airports are dealt with in this document.
NOTE   Aircraft ground support equipment is covered by the standards of CEN/TC 274.
This document is not applicable to continuous handling equipment and systems manufactured before the date of its publication.

1.1   This document deals with the technical requirements for stationary belt conveyors and systems as defined in 3.1 to 3.2.4, designed for continuously conveying loose bulk materials. The covered phases of life cycle are design, setting, operation, maintenance and cleaning.
1.2   This document does not cover:
a)   use in coal mining and open cast lignite mining;
b)   use for man-riding;
c)   floating, dredging and ship mounted structures supporting the conveyor;
d)   biological and chemical hazards resulting from handling foodstuffs or pharmaceuticals;
e)   the design of the supporting structure which is not part of a conveyor;
f)   the effects of wind;
g)   hazards resulting from handling specific hazardous materials, (e.g. explosives, radiating material);
h)   hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes or dust;
i)   biological and micro-biological (viral or bacterial) hazards;
j)   hazards caused by the use of ionising radiation sources;
k)   conveyors fitted with a moving belt with other than a continuous rubber or polymeric surface for the conveying medium;
l)   hazards associated with the integration of belt conveyors with other machinery;
The safety requirements of this document apply to equipment and systems placed on the market after the date of publication of this document.
NOTE   Directive 2014/34/EC concerning equipment and protective systems intended for operation in potentially explosive atmospheres can be applicable to the type of machine or equipment covered by this European Standard. The present document is not intended to provide means of complying completely with the essential health and safety requirements of Directive 2014/34/EC.

This standard specifies the special safety requirements for those types of fixed pneumatic handling systems and components as defined in clause 3, which are designed for conveying bulk materials on a continuous or an intermittent basis (batch conveying system) from the loading point(s) to the unloading point(s).
1.2   This European standard deals with the technical requirements to minimise the hazards listed in clause 4 which can arise during the operation and the maintenance of the pneumatic conveying system. when carried out in accordance with the specifications given by the manufacturer or his authorised representative.
Annex A gives a list of hazards according to EN ISO 12100-1 and the safety requirements and/or measures are specified in the same order as they are given in Annex A.
1.3   This standard applies to design, on site assembly, and commissioning stages.
1.4   This standard applies also to the built-in actuators and parts of the systems, which control the components.
1.5   Exclusions
This standard does not specify the requirements for any elements used as a link between a fixed part(s) of the system and any other part mounted on mobile/movable supports (e.g.: ship, unloaders, ...).
This standard does not take into account the risks of burns and scalds by the radiation of heat sources or by contact with hot gases.
This standard does not take into account the risk generated by ionising materials used in measuring equipment (e.g. level indicators).
This standard does not specify the requirements for handling specific hazardous materials, such as radiating material, explosives, explosive gases, ...
This standard does not specify the requirements for hazards due to electrostatic charges of pipes and equipment made of non-metallic materials.
The safety requirements for the transportation including loading and unloading of the components are not covered by this standard.

This European Standard deals with the technical requirements to minimise the hazards listed in clause 4 and annex A. These hazards can arise during the operation and maintenance of equipment to store bulk materials in silos, bunkers, bins and hoppers and their built-in inlet and outlet devices when carried out in accordance with the specifications given by the manufacturer or his authorised representative. This standard deals with safety related technical verification during commissioning.
The following parts are dealt with in this standard (see Figure 1):
NOTE   Silos are made of different materials e.g. concrete, steel, aluminium, spun rayon, wood.
Safety requirements and/or measures in this standard apply to equipment used in all environments. However, additional risk assessment and safety measures need to be considered in severe conditions, e.g. low or high temperatures out of the range covered by EN 60204-1, corrosive environments, strong magnetic fields, radioactive conditions and bulk materials to be stored included their flow the nature of which could lead to a dangerous situation.
This standard does not cover requirements for:
-   movable, non permanent storage equipment such as road vehicles, rail wagons, containers for bulk materials, ships and barges;
-   blow tanks and pressure vessels as used in pneumatic conveying systems;
-   stockpiles and flat storage;
-   storage equipment for non bulk materials (liquid, gas, slurries, sludge, silage);
-   dismantling and transport of storage equipments;
-   procedure for entering the silo and behaviour of persons inside the silo;
-   storage equipments for underground mining;
-   "noise."
This European Standard deals with the technical requirements for electromagnetic compatibility (EMC).

1.1   This standard deals with the technical requirements to minimise the risks due to the hazards listed in clause 4, which can arise during operation and maintenance of mechanical handling equipment defined in clauses 3.1 to 3.3 and which are designed for continuously conveying bulk materials from the loading point(s) to the unloading point(s).In general, it also applies to equipment which are built into machines or attached to machines. This standard deals with the technical requirements for EMC.
1.2   The standard does not apply to:
-   continuous handling equipment and systems for open-cast lignite mining;
-   continuous handling equipment and systems for underground mining;
-   tunnel digging and excavating machines;
-   bulk material processing or classification machines such as grinders, crushers, screens;
-   fixed belt conveyors for bulk materials. These are covered by the standard EN 620:2002+A1:2010;
-   fixed pneumatic handling equipment. These equipment and systems are covered by the standard  EN 741;
-   the interface between the machinery dealt with in this standard and the fixed belt or pneumatic conveyor.
1.3   This standard does not give the additional requirements for:
a)   use in public areas or for the transportation of people;
b)   floating, dredging and ship mounted equipment;
c)   conveyors requiring a high level of cleanliness for hygiene reasons, e.g. in direct contact with foodstuffs or pharmaceuticals;
d)   transportation of the equipment;
e)   hazards caused by vibration;
f)   use in ambient air temperature below - 20 °C and above + 40 °C;
g)   the effects of wind on strength and stability;
h)   hazards resulting from handling specific hazardous materials, (e.g. Explosives, radiating material);
i)   hazards resulting from contact with or inhalation of harmful fluids, gas, mists, fumes and dusts;
j)   biological and micro-biological (viral or bacterial) hazards;
k)   hazards due to heat radiation from the materials handled;

1.1   This European standard deals with the technical requirements to minimise the hazards listed in Clause 4 and Annex B. These hazards can arise during the operation and maintenance of continuous handling equipment and systems when carried out in accordance with the specifications given by the manufacturer or his authorised representative. This standard deals with safety related technical verification during commissioning.
1.2   This standard applies to mechanical handling devices defined in Clause 3, singly or combined to form a conveyor system, and designed exclusively for moving unit loads continuously on a predefined route from the loading to the unloading points, possibly with varying speed or cyclically. In general, it also applies to conveyors which are built into machines or attached to machines.
1.3   Safety requirements and/or measures in this standard apply to equipment used in all environments. However, additional risk assessments and safety measures need to be considered for uses in severe conditions, e.g. freezer applications, high temperatures, corrosive environments, strong magnetic fields, potentially explosive atmospheres, radioactive conditions and loads the nature of which could lead to a dangerous situation (e.g. molten metal, acids/bases, specially brittle loads, explosives) operation on ships and earthquake effects and also contact with foodstuff. Hazards during decommissioning are not covered.
1.4   This European Standard deals with the technical requirements for electromagnetic compatibility (EMC).
1.5   This standard does not cover hazards during decommissioning and hazards generated by noise. It also does not cover operation in environments where the electromagnetic disturbances are outside the range of those specified in EN 61000-6-2.
This standard does not apply to conveying equipment and systems used underground or in public areas and to aircraft ground support equipment.
(...)

This European standard deals with the technical requirements to minimise the risks due to the hazards listed in clause 4, which can arise during operation and maintenance of fixed belt conveyors and systems as defined in 3.1 to 3.2.4 and designed for continuously conveying loose bulk materials from the loading point(s) to the unloading point(s). Requirements for electromagnetic compatibility are also covered.
1.2   This standard applies to use in ambient air temperatures of -15 °C to + 40 °C.
1.3   This standard does not cover:
a)   use in open cast lignite mining or use underground, such as in mines or tunnels;
b)   use in public areas or for man-riding;
c)   floating, dredging and ship mounted equipment;
d)   conveyors requiring a high level of cleanliness for hygiene reasons, e.g. in direct contact with foodstuffs or pharmaceuticals;
e)   conveyors using a moving belt with other than a continuous rubber or polymeric surface for the conveying medium;
f)   transportation of the conveyor;
g)   the design of the supporting structure which is not part of a conveyor (see 3.2);
h)   the effects of wind;
i)   hazards resulting from handling specific hazardous materials, (e.g. explosives, radiating material);
j)   hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes or dust;
k)   biological and micro-biological (viral or bacterial) hazards;
l)   hazards due to heat radiation from the materials handled;
m)   hazards caused by operation in electromagnetic fields outside the range of EN 61000-6-2: 1999;
n)   hazards caused by operation subject to special regulations (e.g. explosive atmospheres);
o)   hazards caused by noise;
p)   hazards caused by the use of ionising radiation sources;
q)   hazards caused by hydraulic equipment.
The safety requirements of this standard apply to equipment and systems placed on the market after the date of publication of this standard.

1.1 This standard specifies the special safety requirements for those types of fixed pneumatic handling systems and components as defined in clause 3, which are designed for conveying bulk materials on a continuous or an intermittent basis (batch conveying system) from the loading point(s) to the unloading point(s).

This standard is applicable to continuously-operating equipment and systems designed for the mechanical handling of bulk materials only, including mobile machines. This standard relates to the following groups of equipment. - Fixed equipment, such as belt, apron, screw "en masse" conveyors and feeders, bucket elevators, for instance. Horizontal rotary feeders with paddlers, vibrating, reciprocating, rotary drum, rotary vane, rotary table conveyors and feeders are also covered.

1.1   This European standard deals with the technical requirements to minimise the risks due to the hazards listed in clause 4, which can arise during operation and maintenance of fixed belt conveyors and systems as defined in 3.1 to 3.2.4 and designed for continuously conveying loose bulk materials from the loading point(s) to the unloading point(s). Requirements for electromagnetic compatibility are also covered.
1.2   This standard applies to use in ambient air temperatures of -15° C to + 40° C.
1.3   This standard does not cover :
a) use in open cast lignite mining or use underground, such as in mines or tunnels ;
b) use in public areas or for man-riding ;
c) floating, dredging and ship mounted equipment ;
d) conveyors requiring a high level of cleanliness for hygiene reasons, e.g. in direct contact with foodstuffs or pharmaceuticals ;
e) conveyors using a moving belt with other than a continuous rubber or polymeric surface for the conveying medium ;
f) transportation of the conveyor ;
g) the design of the supporting structure which is not part of a conveyor (see 3.2) ;
h) the effects of wind ;
i) hazards resulting from handling specific hazardous materials, (e.g. explosives, radiating material) ;
j) hazards resulting from contact with or inhalation of harmful fluids, gases, mists, fumes or dust ;
k) biological and micro-biological (viral or bacterial) hazards ;
l) hazards due to heat radiation from the materials handled ;
m) hazards caused by operation in electromagnetic fields outside the range of EN 61000-6-2: 1999;
n) hazards caused by operation subject to special regulations (e.g. explosive atmospheres) ;
o) hazards caused by noise  ;
p) hazards caused by the use of ionising radiation sources ;
q) hazards caused by hydraulic equipment.

This European Standard deals with the technical requirements to minimise the hazards listed in clause 4 and annex A. These hazards can arise during the operation and maintenance of equipment to store bulk materials in silos, bunkers, bins and hoppers and their built-in inlet and outlet devices when carried out in accordance with the specifications given by the manufacturer or his authorised representative. This standard deals with safety related technical verification during commissioning.
The following parts are dealt with in this standard (see Figure 1)
A   Bulk material to be stored
B   Storage space limited by the silo structure
C   Charging
D   Discharging
E   Associated and additional equipment (e.g. flow aid devices, instrumentation, local control systems)
F   Working and traffic area
Figure 1 - Parts of a storage equipment
NOTE   Silos are made of different materials e.g. concrete, steel, aluminium, spun rayon, wood.
Safety requirements and/or measures in this standard apply to equipment used in all environments. However, additional risk assessment and safety measures need to be considered in severe conditions, e.g. low or high temperatures out of the range covered by EN 60204-1, corrosive environments, strong magnetic fields, radioactive conditions and bulk materials to be stored included their flow the nature of which could lead to a dangerous situation.
This standard does not cover requirements for :
- movable, non permanent storage equipment such as road vehicles, rail wagons, containers for bulk materials, ships and barges ;
- blow tanks and pressure vessels as used in pneumatic conveying systems ;
- stockpiles and flat storage ;
- storage equipment for non bulk materials (liquid, gas, slurries, sludge, silage) ;
- dismantling and transport of storage equipments;
- procedure for entering the silo and behaviour of persons inside the silo;
- storage equipments for underground mining.
This European Standard deals with the technical requirements...

This standard applies to mechanical conveyor devices designed exclusively for moving unit loads continuously on a predefined route from the loading to the unloading point, possibly with varying speed or cyclically. It also applies to continuous conveyors which are built into machines or attached to machines.

This European Standard applies to mechanical continuous handling equipment used in opencast lignite mines
and the particular mechanical continuous handling equipment used:
. to convey lignite or overburden from opencast mines;
. to convey residuals and tailings from lignite processing to opencast mines;
. to convey lignite, overburden or lignite treatment processing residuals and tailings from one opencast
mine to another.
This standard applies to continuous handling equipment operating in delimited site areas that are off-limits to
the public and accessible only to authorized persons.
It specifies the safety requirements for stationary, mobile and shiftable continuous handling equipment
designed to transport bulk goods by continuous movement from a loading point to a discharge point.
The standard considers the significant hazards that arise during the use, movement and shifting of continuous
handling equipment, as well as the measures for eliminating or reducing these hazards provided the
continuous handling equipment is used as intended and the remaining risk is foreseen and taken into account
by the manufacturer. A complete list of all the hazards specified in EN 1050 is given in Annex A (normative).
The requirements of this standard do not apply to equipment and systems manufactured and put into
operation before the publication date of this standard.