BS EN 50434:2014

Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 General requirements
5 General conditions for the tests
6 Classification
7 Marking and instructions
8 Protection against access to live parts
9 Starting of motor-operated appliances
10 Power input and current
11 Heating
12 Void
13 Leakage current and electric strength at
   operating temperature
14 Transient overvoltages
15 Moisture resistance
16 Leakage current and electric strength
17 Overload protection of transformers and
   associated circuits
18 Endurance
19 Abnormal operations
20 Stability and mechanical hazards
21 Mechanical strength
22 Construction
23 Internal wiring
24 Components
25 Supply connection and external flexible cables
   and cords
26 Terminals for external conductors
27 Provision for earthing
28 Screws and connections
29 Creepage distances, clearances and distances
   through insulation
30 Resistance to heat, fire and tracking
31 Resistance to rusting
32 Radiation, toxicity and similar hazards
Annexes
Annex AA (normative) - Safety signs
Annex BB (informative) - Methods of combining round,
         square and slot shapes <= 50 mm complying
         with safety distance >= 20 mm
Annex CC (normative) - Test enclosure
Annex DD (normative) - Target panels - Specification for
         corrugated fibreboard
Annex EE (informative) - Safety instructions for
         shredders/chippers
Annex FF (normative) - Noise test code - Engineering
         method (Grade 2)
Annex GG (informative) - Example of a material and
         construction fulfilling the requirements
         for an artificial surface
Annex ZZ (informative) - Coverage of Essential
         Requirements of EU Directives
Bibliography

Describes safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250 V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground.

Replacement: This European Standard specifies safety requirements and their verification for the design and construction of hand fed, shredders/chippers with integral electric motor, not exceeding 250V single phase, with or without vacuum assisted collection which are designed to reduce organic material to smaller pieces and are used in a stationary position by an operator standing on the ground. This standard applies to shredders/chippers with feed intake openings or segments, in this standard referred to as feed safety openings that in total will fit into a square of 250mm x 250mm. NOTE For the requirements for the measurement of the square of 250mm x 250mm are given in clause20.101.1 of this standard. In this European Standard shredders and chippers are referred to collectively as machine(s). This European Standard does not cover requirements for machines powered by combustion engines; NOTE1 Combustion engine driven machines are covered by EN13683 . machines driven by an external power source or by battery power; machines with powered discharge intended to broadcast material or load vehicles; machines with mechanically powered feed intake or attachments; wood chippers for agricultural, lawn and park and forestry use; NOTE2 Wood chippers are covered by EN13525 . machines powered from a 3 phase supply. This European Standard deals with all significant hazards presented by shredders/chippers when they are used as intended and under conditions of misuse which are reasonably foreseeable. EMC and environmental aspects, except noise, have not been considered in this European Standard. This European Standard is not applicable to machines which are manufactured before the date of publication of this document by CENELEC.