Maskinsäkerhet

Kommittébeteckning: SIS/TK 228 (Lantbruksmaskiner)
Källa: CEN
Svarsdatum: den 2 okt 2018
Se merSe mindre
 

This European Standard specifies safety requirements and their verification for the design and construction of power take-off (PTO) drive shafts and their guards linking a tractor or self-propelled machinery to the first fixed bearing of recipient machinery, by describing methods for the elimination or reduction of risks which need specific requirements. It is applicable only to those PTO drive shafts and guards mechanically linked to the shaft by at least two bearings.

In addition, it specifies the type of information on safe working practices to be provided by the manufacturer.

This European Standard does not deal with:

— the guards totally covering, but not mechanically linked to, the PTO drive shaft;

— the mechanical characteristics of PTO drive shafts, overrun devices and torque limiters;

— general hazards which are dealt with in EN ISO 4254-1:2015 (see introduction);

Environmental aspects have not been considered in this standard.

This document is not applicable to PTO drive shafts and their guards which are manufactured before the date of publication of this document by CEN.

Kommittébeteckning: SIS/TK 244 (Livsmedels- och förpackningsmaskiner)
Källa: CEN
Svarsdatum: den 8 okt 2018
Se merSe mindre
 

1.1 This documentd specifies requirements for the design and manufacture of mincing machines (see Figures 1 a and 1 b).

The mincing machines (hereinafter referred to as machine) covered by this document are used for size reduction of fresh or frozen meat, meat products and fish (hereinafter referred to as product) by cutting in a set of cutting tools.

Machines for domestic uses are not included in this document. Filling mincers are covered by EN 12463 "Food processing machinery — Filling machines and auxiliary machines — Safety and hygiene requirements".

This document applies only to machines that are manufactured after the date of issue of this document.

This document covers:

— professional machines used for on-demand preparation in shops characterized by:

— designed as a table top machine;

— and having a feed tray;

— and the product is only feed manually;

— and is only operated from the ground;

— and is operated by no more than one operator;

— and with full visibility and full accessibility of the entire machine from the operator workstation;

— and having hole plate diameter ≤ 106 mm;

— and a worm casing set which is removable without using any tools;

— and the weight of the worm casing set ≤ 15 kg;

NOTE The table top machine can be equipped with a frame or base, so no separate table is needed.

— industrial machines used for industrial mass production, and which cannot be characterized as a professional machine.

The extent to which hazards are covered, is indicated in this document. For other hazards which are not covered by this document, machinery should comply with EN ISO 12100:2010 where applicable.

This document does not describe the specific requirements for the control of machines with foot switch.

This document does not describe the specific requirements for additional mixing screws in the feed intake hopper which are covered by EN 13570 "Food processing machinery — Mixing machines — Safety and hygiene requirements".

1.2 This document covers the following types of machines:

— machine with feed tray, feed intake and pusher (see Figure 3);

— machine with feed tray, feed intake, restrictor plate and pusher (see Figure 4);

— machine with feed intake hopper, cover and screw conveyor (see Figure 5);

— machine with feed intake hopper, with or without cover, screw conveyor, with loading device (continuously or discontinuously).

Machines comprise a machine base, a worm casing with a worm, a feed tray (with feed intake) or a feed intake hopper, a screw conveyor, a set of cutting tools, a lock nut, a loading device, a drive motor and – depending on machine type – electrical, hydraulic and pneumatic components. They will also have various safeguarding devices as examples in Clause 5.

Machines may be equipped e.g. with:

— an extraction claw;

— an ejector or extractor;

— a protective hood over the discharge outlet;

— a cover over the inlet opening of the feed intake hopper;

— a transport carriage for the lock nut, the set of cutting tools, the worm and the screw conveyor;

— a lifting device for the lock nut, the set of cutting tools, the worm and the screw conveyor;

— a loading device.

Kommittébeteckning: SIS/TK 244 (Livsmedels- och förpackningsmaskiner)
Källa: CEN
Svarsdatum: den 8 okt 2018
Se merSe mindre
 

1.1 General

This document applies to:

— filling machines with cylinder and piston;

— filling machines with feed intake hopper;

— filling machines with vacuum hopper;

hereafter referred to as filling machines which process e.g. meat, cheese and other pasty substances, excluding dry or frozen materials. They pump foodstuff into casings or bring it to a following process.

This document applies also to the interchangeable equipment for filling machines with which a wide range of additional functions can be implemented. For example: portioning, depositing, mincing, co-extruding, dividing and forming.

This document deals with all significant hazards, hazardous situations and events relevant to filling machines and interchangeable equipment (hereafter referred to as machines), when they are used as intended and under the conditions foreseen by the manufacturer and also the reasonable foreseeable misuse (see Clause 4).

These significant hazards, hazardous situations and events can arise during all the life phases including transportation, assembly, dismantling, disabling and scrapping of the machines.

This document is not applicable to machines which were manufactured before the date of publication of this document by CEN.

Filling machines described in this document are no forming, filling and sealing machines as described in EN 415-3:1999+A1:2009. Clipping machines as described in EN 13885:2005+A1:2010 are not covered by this document.

1.2 Types of filling machines and interchangeable equipment covered by this standard

1.2.1 Filling machines with cylinder and piston

Filling machines with cylinder and piston consist of piston, closing cover, machine frame, accessory drive mechanism and electrical and hydraulic components (see Figure 1).

The material being processed will be fed by hand into the cylinder.

Filling machines with cylinder and piston can be fitted with a dividing device.

1.2.2 Filling machines with feed intake hopper

Filling machines with feed intake hopper (with or without infeed auger, see Figure 2) consist of feeder on the discharge side of the feed intake hopper, machine frame, drive mechanism for interchangeable equipment and electric, electronic or pneumatic components, depending on machine type.

The material being processed will be fed by hand (or optionally a loading device) into the feeding hopper of the filling machine.

Filling machines with feed intake hopper can be equipped with:

— dividing device;

— cover or photoelectric guard at the mouth of the feed intake hopper;

— pressure-sensitive protective device at the hopper edge;

— divided hopper;

— infeed auger;

— counter auger;

— step or ladder;

— two-hand control device at the mouth of the feed intake hopper;

— knee-operated lever switches or hand operated switches.

1.2.3 Filling machines with vacuum hopper

Filling machines with vacuum hopper (with or without infeed auger, see Figure 3) consist of suction pipe with storage container, feeder, vacuum hopper with locking device on the intake side, machine frame, drives for interchangeable equipment and electrical, electronic or pneumatic components, depending on the machinery category.

Filling machines with vacuum hoppers can be loaded by one or more of the following:

— manual loading;

— vacuum suction;

— feeder.

Filling machines with vacuum hoppers are to be switched on and off by lever switches operated by knee or hand and/or by remote control signals.

Filling machines with vacuum hoppers can be equipped with:

— dividing device;

— cover on vacuum hopper;

— infeed auger;

— counter auger;

— foot board or ladder;

— suction pipe and storage container.

1.2.4 Interchangeable equipment for filling machines

Interchangeable equipment are devices which can be assembled to filling machinery by the operator in order to attribute one or more new functions such as: portioning, twisting, voiding, forming, mincing. Interchangeable equipment does not operate independently. The interchangeable equipment will be actuated directly or by filling machines.

Interchangeable equipment dealt with in this document (see 5.3.4) are:

— cutting device (see Figure 13);

— forming device (see Figure 14);

— twisting device (see Figure 15);

— linking gear box (see Figure 16);

— portioning device (see Figure 17);

— holding device (see Figure 18);

— mincing device (see Figure 19);

— sausage production device (see Figure 20);

— filling stream divider device (see Figure 21);

— casing spooling device (see Figure 22);

— co-extrusion device (see Figure 23);

— loading device (see Figure 24).

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 12 okt 2018
Se merSe mindre
 

This document is applicable to relay valves designated to control the brake cylinder pressure of compressed air brakes fitted to railway vehicles, in association with an air brake distributor valve or other control device. It covers one stage relay valves and relay valves adjusting the brake cylinder pressure in response to a change in vehicle speed or load that is either continuously variable or in two or more stages, i.e. empty – loaded.

Relay valves operating with other pressures, in particular the brake pipe pressure, are not included.

This document specifies the requirements for the design, manufacture and testing of relay valves.

Kommittébeteckning: SIS/TK 228 (Lantbruksmaskiner)
Källa: CEN
Svarsdatum: den 16 okt 2018
Se merSe mindre
 

This document, used together with EN ISO 4254-1, specifies the safety requirements and their verification for the design and construction of mounted, semi-mounted, trailed or self-propelled machines that have a combination of two or more of the following functions: loading, mixing, chopping and distributing silage and/or other feedstuffs or materials used for animal bedding such as straw, to be used by one operator only. It includes those fitted with a built-in loading crane. In addition, it specifies the type of information on safe working practices (including residual risks) to be provided by the manufacturer.

This document applies only to machines that have the following functional combinations:

— mixing and distributing functions; or

— mixing, chopping and distributing functions; or

— loading, mixing and distributing functions; or

— loading, mixing, chopping and distributing functions; or

— chopping and distributing functions; or

— loading, chopping and distributing functions.

Silage block cutters, even if they carry out a single function, are covered by this document.

This document does not apply to:

— machines which pick up green fodder directly from the field;

— loading cranes;

— silage buckets.

NOTE 1 Loading cranes are dealt with in EN 12999.

NOTE 2 Autonomous silage loading, mixing and/or chopping and distributing machines (robotic feed systems) are to be dealt with in a separate standard (under preparation).

This document deals with the significant hazards, hazardous situations and events relevant to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs, when they are used as intended and under the conditions foreseen by the manufacturer as listed in Clause 4, except for the hazards arising from:

— failure of the control circuit;

— inadequate seating;

— inadequate lighting;

— travelling of machinery;

— break-up of parts rotating at high speed;

— cutting hazard during service on sharp parts (e.g. blades of the mixing and/or chopping device).

It is not applicable to environmental hazards (except noise).

It does not deal with stability when travelling.

This document is not applicable to machines for loading, mixing and/or chopping and distributing silage and/or other feedstuffs which are manufactured before the date of publication of this document by CEN.

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 18 okt 2018
Se merSe mindre
 

This document specifies laboratory test procedures to determine the static and dynamic stiffness of rail pads, baseplate pads and complete rail fastening assemblies.

Kommittébeteckning: SIS/TK 262 (Lyftkranar)
Källa: CEN
Svarsdatum: den 20 nov 2018
Se merSe mindre
 

This document applies to light offshore cranes including their supporting pedestals and structures.

NOTE The supporting pedestal and structures such as columns and boom rests are covered by this standard to the extent where their main purpose is to support the crane.

This document is applicable to light offshore cranes, whose structures are made of steel.

The following characteristics distinguish light offshore cranes from other types of offshore cranes:

— maximum rated capacity 20 tonnes, maximum load moment 300 tm;

— limitation for off-board lifting operation Hs = 2,0 m and wind speed 15 m/s (3s gust);

— maximum number of working cycles class U3 (C ≤ 1,25 × 105) according to EN 13001-1.

This document gives requirements for all significant hazards, hazardous situations and events relevant to light offshore cranes, when used as intended and under conditions foreseen by the risk assessment (see Clause 4).

This document is not applicable for:

a) transportation, assembly, disabling, scrapping or changing the configuration of the crane;

b) non-fixed load lifting attachments, i.e. any item between the hook and the load;

c) lifting operations in ambient temperatures below −20 °C;

d) lifting operations in ambient temperatures above 45 °C;

e) lifting operations involving more than one crane;

f) accidental loads due to collisions or earthquakes;

g) emergency personnel rescue operations (except training);

h) subsea lifting operations;

i) general purpose offshore cranes, floating cranes and motion compensated cranes.

This document is applicable for the lifting of personnel.

This document is applicable to light offshore cranes, which are manufactured after the date of approval by CEN of this document.