prEN 50344:2013

Routine tests for controls within the scope of the EN 60730 series

2015-03-06: WI deleted following New Audit System rules (alert 4).
2013-01-10 - Enquiry editing allocated to [e-mail] * D140/C066: NWI approved * Will supersede EN 50344-1:2001 * To be listed under the LVD and reference EN 60730-1:2011

Stückprüfungen in der Fertigung von Regel- und Steuergeräten im Geltungsbereich der Normenreihe EN 60730

/

Redno preskušanje krmilnih elementov v okviru serije standardov EN 60730 (varnost gospodinjskih aparatov)

General Information

• Status: Not Published
• Publication Date: 02-Feb-2015
• Withdrawal Date: 02-Aug-2015
• ICS: 97.120 - Automatic controls for household use
• Technical Committee: CLC/TC 72 - Automatic controls for household use
• Current Stage: 4098 - Decision to drop project - Standstill maintained / released - Enquiry
• Start Date: 06-Mar-2015
• Completion Date: 23-Sep-2025
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Ref Project: oSIST prEN 50344:2013 - Routine tests for controls within the scope of the EN 60730 series

Overview

prEN 50344:2013 - Routine tests for controls within the scope of the EN 60730 series - is a CENELEC draft standard prepared by CLC/TC 72. It defines minimum routine electrical safety tests that manufacturers should perform on automatic electrical controls used in household appliances and similar equipment covered by the EN 60730 series. The document was intended to supersede EN 50344-1:2001 and to be listed under the LVD (Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits, 2006/95/EC). Note: the work item was later deleted (WI deleted following New Audit System rules - alert 4).

Key topics and requirements

• Scope and purpose

  • Routine tests are 100% production (line) tests carried out normally at the final stage of manufacture to detect safety-relevant manufacturing variations.
  • Tests are safety-focused and distinct from performance or product verification/repeat type tests.

• Mandatory routine tests (examples)

  • Earth continuity test
    • At least 10 A from an AC source (no-load voltage ≤ 12 V).
    • Measured resistance between earth terminal and accessible parts must not exceed 0.1 Ω (excluding external conductors, including integrated conductors).
  • Electric strength (dielectric) test
    • Applied between live parts and accessible metal/non-metal surfaces (as mounted).
    • Typical test voltages shown in the standard (examples include 1 000 V and 2 500 V depending on insulation class); test duration minimum 1 s.
    • Circuit protection with current sensing that trips at ≈5 mA (may be set up to 30 mA) to indicate breakdown.
    • Option to use DC at 1.5× AC value.
  • Functional test
    • Required where the control provides functional safety - verify correct operation on 100% of production (examples: manual actuator, self-test routines, in-process operation checks).
  • Single-operation controls
    • Annual sample test: three samples loaded at maximum rated conditions and cycled at the fastest declared rate, followed by electric strength and earth continuity checks.

• Manufacturer responsibilities

  • Test equipment verification, documented procedures, segregation of nonconforming units, failure investigation and corrective action records.

Practical applications

• Ensures electrical safety of controls used in:
  • Household appliances (thermostats, timers, motor controllers)
  • Stand-alone or in-line cord controls and independently mounted controls
  • Integrated controls with flexible conductors or user-accessible surfaces
• Used by manufacturers, quality engineers, production test teams, conformity assessment bodies and suppliers to implement 100% line testing and maintain traceable safety verification.

Who should use this standard

• Appliance and control manufacturers, test laboratory personnel, compliance managers, and certification bodies involved with EN 60730 series products and LVD conformity.

Related standards

• EN 60730 series (automatic electrical controls)
• EN 50344-1:2001 (to be superseded)
• EN 60730-1:2011 (referenced)
• LVD 2006/95/EC (safety objectives reference)

Keywords: routine tests, EN 60730, prEN 50344:2013, electrical safety, earth continuity test, electric strength test, functional test, production testing, CENELEC, automatic controls.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2013
1DGRPHãþD
SIST EN 50344-1:2002
Redno preskušanje krmilnih elementov v okviru serije standardov EN 60730
(varnost gospodinjskih aparatov)
Routine tests for controls within the scope of the EN 60730 series
Stückprüfungen in der Fertigung von Regel- und Steuergeräten im Geltungsbereich der
Normenreihe EN 60730
/
Ta slovenski standard je istoveten z: prEN 50344:2013
ICS:
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 50344
NORME EUROPÉENNE
April 2013
EUROPÄISCHE NORM
ICS 97.120 Will supersede EN 50344-1:2001

English version
Routine tests for controls within the scope of the EN 60730 series

To be completed To be completed

This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-09-06.

It has been drawn up by CLC/TC 72.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own
language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 23881 Ref. No. prEN 50344:2013 E

1 Contents Page
3 Foreword . 3
4 Introduction . 4
5 1 General . 5
6 2 Test Method (general conditions) . 5
7 3 Earth Continuity Test . 5
8 4 Electric Strength Test . 6
9 5 Functional Test . 6
10 6 Functional Test for controls intended for a single operation . 7
12 Foreword
13 This document [prEN 50344:2013] has been prepared by CLC/TC 72 "Automatic controls for household use".
14 This document is currently submitted to the Enquiry.
15 This document will supersede EN 50344-1:2001.
16 This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for
17 Use within Certain Voltage Limits (LVD - 2006/95/EC).
18 Introduction
19 The tests detailed in this standard are carried out by the manufacturer and apply to products within the scope
20 of EN 60730-1 and its Part 2s. These are tests only to determine safety.
21 This standard is for use within the scheme of the CENELEC certification agreement (CCA) and can be used in
22 conjunction with other schemes.
23 Routine tests are line tests performed on 100 % of production and are normally carried out at the final stage of
24 manufacture.
25 NOTE 1 Routine tests are not to be confused with performance tests, or product verification tests (repeat type tests)
26 NOTE 2 Performance tests are considered the responsibility of the manufacturer and shall be carried out at the
27 manufacturer's discretion unless otherwise specified in Clause 2 of this standard.
28 NOTE 3 Product verification tests (repeat type tests) are considered the responsibility of the manufacturer and shall be
29 carried out at the manufacturer's discretion and to the manufacturer's own quality system.
30 These tests are performed to ensure the electrical safety of the products and are intended to reveal a variation
31 during the manufacture of Automatic Electrical Controls which could impair safety. They do not impair the
32 properties and the reliability of the Automatic Electrical Control. They are normally carried out on the complete
33 Automatic Electrical Control after assembly but the manufacturer may perform the tests at an appropriate
34 stage during production provided later manufacturing operation will not affect the results.
35 The tests listed in this standard are the minimum considered necessary to cover essential electrical safety
36 aspects. It is the responsibility of the manufacturer to decide if additional routine tests are necessary. It may
37 be determined from engineering considerations of the manufacturer that some of the tests required in this
38 standard are inappropriate and therefore unnecessary, e.g. for those Automatic Electrical Controls which can
39 only be tested when incorporated or integrated in the final application.
40 For the purpose of this document, the terms and definitions of EN 60
...