introduction to european directiveseuropean directives · sith d t l bl li ithiec 61439 2 ......

Introduction to European directivesEuropean directives

Overview of European directivesOverview of European directives

© Siemens AG 2013. All rights reserved.

The European Economic Area (EEA) Europe today

EEA consists of:EEA member states (with the exception of Switzerland

EU-participating member states

EEAEU-28

© Siemens AG 2013. All rights reserved.Industry Sector / I IA CE S V 01/2013 European directives

Switzerland:"Agreement on mutual recognition of conformity assessments" of 6/21/1999

EEA

EU-accession country

EU-membership aspirants

The European directives

Agreements are in place within the EU governing the free movement of goods and safety in the workplace.

Free movement of goods – manufacturers(Article 114 TFEU - Treaty of Lisbon)

Product Liability Directive 85/374/EECG S f / / C

Workplace Health and Safety Directive 89/391/EEC

Safety in the workplace – operators(Article 153 TFEU - Treaty of Lisbon)

Low Voltage Directive 2006/95/EC

Machinery Directive 2006/42/EC

General Product Safety Directive 2001/95/EC

Use of Work Equipment 2009/104/EC

89/391/EEC

Other directives at national levelEMC Directive 2004/108/EC

etc. (The manufacturer is obliged to comply with all relevant directives!)


Harmonized standardsTFEU = Treaty on the Functioning of the European Union

National standards

UserManufacturerTFEU

Treaty on the Functioning of the European Union UserManufacturer

Low-Voltage Machinery Product EMC

Dismantling of trade barriers within the EU single market

Workplace Health and Safety Directive 89/391/EEC

Cooperation between EU states in social matters

Art. 114 Art. 153

Directive2006/95/EC

Machinery Directive

2006/42/EC

Safety Directive

2001/95/EC

Directive2004/

108/EC

2001/45/EC to amend directive

2009/104/EC

RL95/63/EC to amend Directive

2009/104/EC

Work EquipmentDirective

2009/104/EC

E i t d P d t S f t A t (GPSG) EMC l i l ti§ § Occupational Safety and Health ActEquipment and Product Safety Act (GPSG) EMC legislation

Mandate from the EU Commission Standards institution for creating

safety standards at CEN/CENELEC

Implementing the EN standardswithout changes; harmonized,

if in official journal of EU

§ § Occupational Safety and Health Act, Ordinance on Industrial Safety and HealthE.g., in Germany:regulations, provisions, rules, and information on industrial accident insurance

§

Order based onapplicable regulations

When applying harmonized standards it can be assumed that the guidelines are being adhered to

Machinery operators(assumption of responsibility)

Safe machine/control panel


Safe machine runningDeclaration of conformityCE marking

control panel

The European directivesSignificance

Guidelines Cover a large number of products (in terms of machines, devices, medicine) which share similar risks

Contents Few technical details Basic requirements only

A single benchmark (almost a "law") for judging whether or not a product may be marketed (brought into circulation)Significance

Verification Compliance with the directive must be established and verified(conformity assessment /Declaration of Conformity).


CE marking

Which directive relates to control panel assembly?

Cableways(2000/9/EC)

Medical Devices(93/42/EEC)

Machinery(2006/42/EC)

EMC(2004/108/EC)

Low Voltage(2006/95/EC)

Explosives For Civil Uses(93/15/EEC)

Pressure Equipment(97/23/EC)

( )

Lifts(95/16/EC)

( )

Active Implantable Medical Devices(90/385/EEC)

Simple Pressure Vessels(87/404/EC)

Toy Safety(88/378/EEC)

Recreational Craft(94/25/EC)

Construction Products(89/106/EEC)

A directive needs to be applied to a given product if the product is formally covered by the scope of application (Article 1)of this directive and the product involves risks as described in the requirements under this directive.

etc..Personal Protective Equipment(89/686/EC)

Measuring Instruments(2004/22/EC)

Outdoor Noise(2000/14/EC)


The manufacturer is always responsible for deciding which directive(s) they (must) apply to their product.

Thank you for your attention!Any questions?

© Siemens AG 2013. All rights reserved.

Guidance through the CE marking processprocess Process for the CE – Declaration of Conformity and marking in line with

LVD 2006/95/EC1. Method2. Declaration of Conformity 3. CE marking3 C a g

Example for the Declaration of Conformity and the CE marking

© Siemens Industry Inc. 2013. All rights reserved.

Path to CE marking

© Siemens Industry Inc. 2013. All rights reserved.Industry Sector / I IA CE S VPage 2 01/2013 Guidance through the CE marking process

Conformity assessment procedure

Conformity must be assessed by the manufacturer or someone authorized by them and based within the Community. The conformity assessment procedure incorporates 3 main steps.

1. Compiling the technical documentation

2. Declaration of Conformity

Th bli ti ( th d ) d t l t th i t h ill ll h d t il d k l d

3. CE marking


These obligations (methods) do not apply to the importer, who will generally have no detailed knowledge regarding which directives have been taken into account or which technical specifications have been applied.

1. Compiling the technical documentationScope (corresponding to Annex IV of the LVD – internal production monitoring)

The technical documentation incorporates the following:

General description of the electrical switching devices and components p g p

Design and production plans and circuit diagrams showing how components, modules, and circuits, etc. are arranged

Descriptions and explanations to help people understand these plans and circuit diagrams and operate theDescriptions and explanations to help people understand these plans and circuit diagrams and operate the electrical switching devices and components (Objective: third-parties must be able to understand)

A list of standards applied (in full or in part) or, if no standards have been applied, a description of the means by which the safety requirements of the directive have been satisfied

B f d t i b ht i t i l ti th f t d t il th i t h i l d t ti

The results of the design calculations, tests performed, etc.

Test reports (available test reports from the manufacturer or third parties)


Before a product is brought into circulation the manufacturer needs to compile the various technical documentation verification that the products satisfies the directive.

1. Compiling the technical documentationRetention

Retention of technical documentation:

For at least 10 years by the manufacturer or authorized partyy y p y

Readily accessible (e.g. in electronic form too)

Importer or party bringing product into circulation is responsible for documentation retention if the manufacturer or their authorized party is not based within the Community.manufacturer or their authorized party is not based within the Community.

Must be made available within a reasonable period of time if requested by the authorities (e.g. within 2 weeks)


2. Declaration of ConformityContent

The Declaration of Conformity must contain:

Name and address of the manufacturer or someone authorized by them yand based within the Community

Description of the electrical switching devices and components

The harmonized standards appliedThe harmonized standards applied

Reference to the specifications on which conformity is based whereno harmonized standards have been applied

Identity of the manufacturer or their authorized signatoryIdentity of the manufacturer or their authorized signatorybased within the Community

The last two digits of the year when the CE marking was applied


2. Declaration of ConformityRetention

The Declaration of Conformity must be made available and retained by the Manufacturer or

B d ith th C it (EEA) someone authorized by them

If neither are based within the Community, a copy needs to be retained by

Based with the Community (EEA)

The importer or For the party responsible for bringing the product into circulation

Th th iti ibl f i i th k t t f th D l ti f C f it t

The Declaration of Conformity must be drafted in at least one of the official European languages.

The authorities responsible for supervising the market can request a copy of the Declaration of Conformity at any time if necessary.


The Declaration of Conformity must be drafted in at least one of the official European languages.

Official languages within the EU: 23 Working languages: 3 (English, French, German)

3. CE marking

Marking of electrical switching devices and components with CE marking before it is brought into circulation by the manufacturer only or someone authorized by them and based within the Community

CE marking applied to the electrical switching devices and components themselves or, if this is not possible, to the packaging, the user instructions, or the warranty certificate

Marking must be clearly visible, legible, and permanent.

Minimum height 5mm with proportions retained if enlarged


3. CE marking

The CE marking indicates that an electrical switching device or component:

Yes ?

Satisfies the main requirements

Has been through the conformity assessment process as defined in the Low Voltage Directive and the other directives

MachineDirective

Device isa Machine

ATEXDirective

Yes ?

Yes ?

applicable to the product

And whose free movement within the European Economic Area may only be limited/denied if there are well grounded suspicions (presumption of effectiveness)

HazardeousLocations

EMC - Directive

Markingneccessary

Yes ?

Yes ?

(presumption of effectiveness)

It is forbidden to apply markings whose meaning or design b f d ith th i d i f CE ki

Low Voltage Directive

Voltage50 … 1000 Vac75 … 1500 Vdc

Yes ?

Yes ?


may be confused with the meaning or design of CE marking.

Examples of the declaration of conformity, rating plate, and the CE marking

Declaration of conformity for a SIVACON power distribution board

Example rating plate of a low-voltage switchgear and controlgear assembly –according to IEC/EN 61439IEC/EN 61439--22according to IEC/EN 61439IEC/EN 61439 22

Manufacturer: Panel building LtdManufacturer: Panel building Ltd.

Serial number: Power distribution board 12345

Date of manufacture: September 2012

S it h d t l bl li ith IEC 61439 2


Switchgear and controlgear assembly complies with IEC 61439-2

Introduction to the relevant IEC/EN standards for control panel designstandards for control panel design

Which standards are applicable and validpp Scope of the new IEC 61439

“Low-voltage switchgear and control gear assemblies” Scope of the IEC 60204-1 Scope o t e C 60 0

“Electrical equipment of machines”


IEC and UL Markets at a Glance

IEC/ENUL / NFPA / NEMA

© Siemens Industry Inc. 2013. All rights reserved.Industry Sector / I IA CE S VPage 2 09/2013 Introduction to relevant IEC/EN standards

IEC / UL / NFPACSA / UL

Adoption of IEC standards according to local requirementsExplanation regarding use of prefixes

Publisher Standard Issue Date

NormsInternational

ISO / IECe.g. IEC 61439-1:06/2009

e.g. EN 61439-1:12/2009European Committee for

Electrotechnical Standardisation:

National NormsDIN / VDE / DKE

gMinor changes/additions acc. to region (EU)

e. g. DIN EN 61439-1:06/2010Minor changes/additions acc. to region (e.g. France)

Every nation, referring to the

CENELEC, transposes and

translates EN standards into

national standards.

Factory standards

o c a ges/add t o s acc to eg o (e g a ce)


Differences Between Europe & North America

Europe Responsibility of the manufacturer

USA / North America Responsibility of the operatorResponsibility of the manufacturer

Responsibility of the operator Protection targets are defined by

directives

Responsibility of the operator

Protection targets and requirementsare defined by laws

C tifi ti / li ti f d t Presumption of conformity with the application of harmonized standards (ISO9000 et seqq., self-certification, self-responsibility)

Certification / listing of products

Verification by independent NRTL/AHJ (third-party certification)

+ successful inspection by the


+ successful inspection by theAuthority having Jurisdiction (AHJ)

Search Path within the Sets of Standards Example done with IEC/EN standards

Compliance with EU di tiCompliance withYes / NoIEC/EN 60364-1 Low-voltage

directiveInstallation Standards

Compliance withYes / No

EU-directives

on dsA

pplic

atio

stan

dard

IEC/EN 60204-1 IEC/EN 61439-1

Pro

duct

-st

anda

rds

IEC/EN 60947-1Low-voltage

switching devices

IEC/EN 60947-2Low-voltage

circuit breakers

IEC/EN 60947-4-1Contactors,

motor starters

IEC/EN 60947-6-2Contactors,

motor starters


Official Journal of the European Union for the LVD 2006/95/ECExtract with the relevant IEC/EN standards for control panel design


IEC 60204-1 – Scope (Excerpt)Standard for electrical equipment of machines

Application of electrical, electronic and programmable electronic equipment and systems to machines not portable by hand while working, including a group of machines working together in a co-ordinated manner. Equipment covered by this part of IEC 60204 commences at the point of connection of the supply to the

electrical equipment of the machine (see 5.1). Note: The requirements for the electrical supply installation in buildings are given in the IEC 60364 series. Applicable to equipment that operate with nominal supply voltages not exceeding 1000 V AC and 1500 V Applicable to equipment that operate with nominal supply voltages not exceeding 1000 V AC and 1500 V

DC and with nominal supply frequencies not exceeding 200 Hz. Note: For higher voltages, see IEC 60204-11.

Note: The standard is aligned and more and more harmonized with the U.S. standard “NFPA79 Standard

for Industrial Machinery”


y

Examples of Machines Covered by IEC/EN 60204-1 (Annex C)

Metalworking machinery Food machinery

Leather/imitation leather goods and footwear machinery Trimming and brushing machines

Plastics and rubber machinery Printing, paper and board machinery Folding machines Wood machinery

Construction and building materials machinery Hoisting machinery (see IEC 60204-32) Transportable machineryWood machinery

Inspecting and testing machinery Assembly machines, compressors Conveyor technology, material handling

Transportable machinery Machinery for transportation of persons Mobile machinery Power-operated doors/gates

Packaging machinery Shrink-wrapping machines Textile machines, laundry machines Refrigeration and air-conditioning machines

Machines for hot metal processing Leisure machinery Tanning machinery Pumps mining and quarrying machines


Refrigeration and air conditioning machines Heating and ventilating machines

Pumps, mining and quarrying machines Agriculture and forestry machines

IEC 61439 – Scope for Low-voltage switchgear and controlgear assemblies

Parts 1 & 2 apply to switchgear and controlgear assemblies: With a rated voltage of up to 1,000 V AC or 1,500 V DC Both fixed and movable, with or without enclosureBoth fixed and movable, with or without enclosure For generating, transmitting, distributing, and converting electrical energy and controlling electrical switching

devices and components To be used under special operating conditions (e.g. on ships, railcars) associated with additional

requirements For equipping machines with the additional requirements under IEC 60204 That are individual units or series-produced

The control panel may also be assembled by a different manufacturer to the original one

The standard is intended to lay down definitions and set out the operating conditions, construction requirements, technical properties, and verification requirements!


partially comparable with the U.S. standard “UL508A standard for industrial control panels”

TerminologyLow-voltage switchgear and controlgear assembly

Low-voltage switchgear and controlgear assembly [e.g. industrial control panel]

A bl f l l lt it h d t l ith l t d i t f t l Assembly of one or several low-voltage switchgears and controlgears with related equipment for control, measurement, reporting, protection, and regulation, with all the internal electrical and mechanical connections and structural components


Required verifications for IEC/EN control panelscontrol panels

Introduction to verifications Design verifications Routine verifications Routine verifications Documentation


Introduction to verificationsTerminology

Design verification:Verification of specimens of a switchgear and controlgear assembly or parts of switchgear and p g g y p gcontrolgear assemblies to show the design meets the requirements of the relevant switchgear and controlgear assembly standard

Objective:Verification of compliance with the general requirements of the IEC 61439-1 standard and the relevant IEC 61439–2….6 product standard

IEC 61439-1 §10Design verifications are to be performed by the original manufacturer of the switchgear

© Siemens Industry Inc. 2013. All rights reserved.Industry SectorPage 2 10/2013 Required verifications for IEC/EN control panels

Design verifications are to be performed by the original manufacturer of the switchgear and controlgear assembly or their performance should be agreed upon.

Introduction to verification testsTerminology

Design verification via:

Testing Tests on a specimen of a switchgear and controlgear assembly or parts of switchgear and controlgearg

Comparison

assembly or parts of switchgear and controlgear assemblies

Structured comparison of the planned design or parts of a switchgear and controlgear assembly with a referenceComparison a switchgear and controlgear assembly with a reference design, verification via testing

Design verification of set design rules or calculations based


Assessment on a specimen or parts of a switchgear and controlgear assembly

Introduction to verification testsTerminology

Routine verificationVerification process to which each switchgear and controlgear assembly is subjected during and/or p g g y j gafter its manufacture to ensure it meets the requirements of the relevant switchgear and controlgear assembly standard

Objective: To identify material and manufacturing defects Ensure operability

DIN EN 61439-1 §11R ti ifi ti t b f d b th f t f th it h d


Routine verifications are to be performed by the manufacturer of the switchgear and controlgear assembly.

Design verificationsVerification options in accordance with IEC 61439-1 Annex D

There are alternative processes for some design verifications. Alternative processes are treated as being equivalent.p g q The original manufacturer makes the choice.

Testing

ComparisonDesign verification via:


Assessment

Design verificationsVerification options in accordance with IEC 61439-1 Annex D

Property requiring verification Verification optionsTesting Comparison Assessment

St th f t i l YES NO NO

1.) UV radiation / resistanceto exceptional heat and fire

Exceptions:

Strength of materials YES NO NO 1.)

Degree of protection of the enclosure YES NO YESClearances YES NO NOCreepage distances YES NO NO

p

2.) Short-circuit withstand strength of the protective conductor

3.) Surge voltage strength

Protection against electric shock and integrity of protective circuits

YES NO 2.) NO

Incorporation of switching devices and components NO NO YESInternal electrical circuits and connections NO NO YESTerminals for external conductors NO NO YESDielectric properties YES NO NO 3.)

Temperature rise limits YES YES YESShort-circuit withstand strength YES YES NO


Electromagnetic compatibility (EMC) YES NO YESMechanical function YES NO NO

Design verification – performanceVerification of temperature rise – overview

3 Verification options: testing, comparison, assessment

a.) Testingb.) Comparisonc.) Assessment

InA

1 600 A

a.)a.)

b )*) R t i ti

1,600 A

a.)b.)

b.)c.)*

b.)*) Restrictions

630 A


c.)different InA for the switchgear and controlgear assembly

Design verification – performanceVerification of temperature rise – testing

Verification via testing

Verification option for all switchgear and controlgear assemblies where InA >1 600 AVerification option for all switchgear and controlgear assemblies where InA >1,600 A

Rules for selecting test items (worst-case testing)

Rules for testing complete switchgear and controlgear assemblies

Rules for separate testing of main busbars, distribution bars, and functional units



Testing of main busbars Testing of field types

Selecting a representative arrangement

Testing of main busbars

Least suitable versions under worst-case conditions

Regardless of

Testing of field types


Valid for all versions of the field type

Fields with one

functional unit

field type but valid for all fields

Testing of field distribution bars Testing of functional units


Regardless of versions and arrangement of functional units

Least suitable versions underworst-case conditions

Valid for all versions of functional units

Fieldswith more than one

functional unit


functional units but valid for all versions


Parts of the switchgear and controlgear assembly Temperature-rise limit [K]

Table 6, IEC 61439 – applies with a max. ambient temperature ≤ 35°C

g g y p [ ]In-built switching devices and components As per specificationsTerminals for incoming/outgoing insul. conductors 70 K (e.g. 35 + 70 = 105°C)Current bars, conductors, plug-in contacts, replaceable parts Limited by:

Mechanical strength Influence on adjacent switching devices and components Limit temperature of insulating materials Connected switching devices and components Contact material for isolating contacts

Controls Metal 15 K (e g 35 + 15 = 50°C)Controls MetalInsulating material

15 K (e.g. 35 + 15 = 50 C)25 K (e.g. 35 + 25 = 60°C)

Exterior surfaces Metalexposed to the touch Insulating material

30 K (e.g. 35 + 30 = 65°C)40 K (e.g. 35 + 40= 75°C)

Plug connections Limited by incoming switching devices and components


g y g g pWithin switchgear and controlgear assemblies, higher temperatures may occur at grounded metal parts if damage involving built-in switching devices and components can be ruled out.


Ambient temperature must be between +10°C and +40°C

U f th l d th t Use of thermocouples and thermometers

The temperature-rise limit values in Table 6 must not be exceeded

Th d i ithi th it h d t l bl t k f tl The devices within the switchgear and controlgear assembly must work perfectly


Design verification – performanceVerification of temperature rise – comparison

Verification is based on a comparison with a tested reference design.

Can be used for: 1. Switchgear and controlgear assembliesg g2. Busbars3. Functional units


Design verification – performanceVerification of temperature rise – comparison with a switchgearand controlgear assemblyg y

The functional units must belong to the same group as the functional unit selected for testing.

Th d i t b th th t d f th t t The design must be the same as that used for the test.

The overall dimensions must be greater than or equal to those tested.

V til ti t b id ti l t b tt th th t t til ti (f d til ti t l Ventilation must be identical to or better than the test ventilation (forced ventilation or naturalconvection, identical or larger ventilation openings).

The number of internal partitions (if there are any) must not exceed the number during testing.

Power loss within the same field must not exceed that during testing.


Design verification – performanceVerification of temperature rise – comparison with busbars

Rated values for aluminum bars also apply to copper bars, but not vice versa.

C i ith t t it b d th f ll i it i d ti f f th h i ht Comparison with test items based on the following criteria: reduction of one or more of the height, width, number of bars per conductor, but with

1. The same bar arrangement2 Th di t b t t f d t2. The same distances between centers of conductors3. The same enclosure and4. The same busbar compartment (if there is one)

If the cross section which has been tested is also smaller than the one to be derived, the rated values for the versions in between may be determined via interpolation.


Design verification – performanceVerification of temperature rise – comparison with functional units

Rated currents must be calculated for all functional units within the group. The reduction factor must be determined for each functional unit. The rated current for each untested functional unit within the group is the highest possible current

for this functional unit multiplied by the reduction factor for the tested version for the group.Functional units - replacing devices p gA device may be replaced by a similar device from a different series than the one used for the original verification, providing The power loss and temperature rise for the terminals of the device during testing are less than or e po e oss a d te pe atu e se o t e te a s o t e de ce du g test g a e ess t a o

equal to its product standard. Also, the physical arrangement within the functional unit and the rating for the functional unit must

remain the same.


Design verification – performanceVerification of temperature rise – Assessment

2 calculation methods are allowed:1. InA ≤ 630 AnA

Comparing the resulting power loss with the power loss associated with the enclosure

2. InA ≤ 1600 ACalculating the power loss and radiation via the enclosure in accordance with IEC 60890for switchgear and controlgear assemblies InA> 630 A to 1600 A (maximum of 3 internal partitions)

Generally speaking: The rated current for the circuits may not exceed 80% of the conventional thermal rated currents for

switchgear and electrical switching devices and components in free air within the circuit.


All conductors must have a minimum cross section equivalent to 125% of the permissible rated current.

Design verification – performanceVerification of short-circuit withstand strength

Verification of rated currents for short circuits via Comparison with a reference construction (checklist or calculation)p ( ) TestingVerification of the short-circuit withstand strength of circuits is not required for:a) Switchgear and controlgear assemblies with a rated short-term withstand current Icw or aa) Switchgear and controlgear assemblies with a rated short-term withstand current Icw or a

conditional rated short-circuit current Icc with a root mean square value of 10 kA at the most;b) Switchgear and controlgear assemblies or circuits of switchgear and controlgear assemblies,

protected by current-limiting devices, whose peak-let through current at the highest permissible p otected by cu e t t g de ces, ose pea et t oug cu e t at t e g est pe ss b euninfluenced short-circuit current at the in-feed terminals of the switchgear and controlgear assembly does not exceed 17 kA;

c) For auxiliary circuits: UN ≥ 110 V, PN ≤ 10 kVA and uk ≥ 4%


N N

UN < 110 V, PN ≤ 1.6 kVA and uk ≥ 4%

Design verification – performanceVerification of short-circuit withstand strength is not required – case a.)

A rated short-term current tolerance Icwor conditional rated short-circuit current Icc

I f d

≤ 10 kA

Field A Field B

InfeedOutgoing feeders


Icp ≤ 10kA

Design verification – performanceVerification of short-circuit withstand strength is not required – case b.)

Overcurrent protection devices:

Ipeak ≤ 17kA at Icp ≥ 10kA

I f d

Field A Field B



Icp ≥ 10kA

Design verification – performanceVerification of short-circuit withstand strength is not required – case c.)

Auxiliary circuits:

UN ≥ 110 V PN ≤ 10 kVAUN ≥ 110 V, PN ≤ 10 kVA and uk ≥ 4%

UN < 110 V, PN ≤ 1.6 kVA Auxiliary circuits

and uk ≥ 4%

I f d

Field A Field B




Example with SIMARIS curves: NH fuse 3NA..., 200 A,, ,

Icu = 120 kA Icp = 50 kA Ipeak = 16.2 kA

Ipeak ≤ 17 kANo verification of the short-circuit

withstand strength necessary!t sta d st e gt ecessa y



Example with SIMARIS curves: Circuit breaker 3RV1042, 50 A,, ,

Icu = 100 kA Icp = 30 kA Ipeak = 16.2 kA

Ipeak ≤ 17 kANo verification of the short-circuit

withstand strength necessary!t sta d st e gt ecessa y


Design verification – performanceVerification of short-circuit withstand strength – comparison

1. Comparison based on a checklist Comparison using 10 questions in the IEC 61439 checklistp g q If an element in the checklist is not satisfied, then comparison based on calculations or testing

2 Comparison using calculation (only for busbars!)2. Comparison using calculation (only for busbars!) Verification of the short-circuit withstand strength of busbar arrangements via comparison

based on calculations (Annex P IEC 61439) and Points 6 8 9 and 10 in the checklist also need to be satisfied

Notice: Comparison may only be based on a reference design which has been tested

Points 6,8,9, and 10 in the checklist also need to be satisfied


p y y galready!

Design verification – performanceVerification of short-circuit withstand strength – testing

Verification via testing;

Where the design is the same only one functional unit needs to be testedWhere the design is the same, only one functional unit needs to be tested.

Only one bar needs to be tested if the rest have a similar configuration.

Circuits must be tested to the highest thermal and dynamic standards.

Testing of main circuits

Testing of neutral conductors (at least 60% of external conductor current)

Testing of protective circuit (at least 60% of external conductor current)

...


Design verification – performanceElectromagnetic compatibility (EMC)

Generally speaking:Verification is based onVerification is based on Assessment (of constructional requirements – Chapter 8) Tests as per Annex J

Verification based on tests is not required if an Assessment finds that: Switching devices and components are designed for the specified environment. Installation and wiring have respected manufacturer specifications.In all other cases testing as per Annex J.10.12


The requirements of EMCD 2004/104/EC for the control panel are thus fulfilled.


EMC withstand testing on finished switchgear and controlgear assemblies may only be forgone if the following conditions are met: The installed equipment is manufactured for the respective environment in accordance with the applicable

EMC standards The installation and wiring of the components has been performed in accordance with the specifications of the relevant

manufacturer (arranged with respect to mutual interference, shielded cable, grounding, etc.)

2 ambient conditions are considered Environment A: industrial networks / areas / devices (including strong sources of interference) Equates to class A devices

Environment B: public networks such as residential areas businesses small industry Strong sources of interference Environment B: public networks such as residential areas, businesses, small industry. Strong sources of interference (arc welding machines) are not covered here Equates to class B devices

The switchgear and controlgear assembly manufacturer must specify which ambient


The switchgear and controlgear assembly manufacturer must specify which ambient condition its switchgear and controlgear assembly is suited to.


Interference immunitySwitchgear and controlgear assemblies without installed

l t i i t id d i t i t f d l ti ditielectronic equipment are considered immune to interference under normal operating conditions. No verification necessary for this Furthermore these devices do not usually have any specification on the environment to which

they are best suitedy

Emitted interferenceSwitchgear and controlgear assemblies without installed electronic equipment only produce

l i i f d i i hi i H hi i l f felectromagnetic interference during switching operations. However, this is only for a few milliseconds. It is also a part of the normal electromagnetic environment. No verification necessary for this Furthermore these devices do not usually have any specification on the environment to which


y y pthey are best suited

Documentation

A test report must be created for the conducting of verifications as per DIN EN 61439-1.

Chapter 10.1

verifications as per DIN EN 61439 1.

"The reference design, the number of switchgear and controlgear assemblies used for the verifications, or parts of these, the choice of verification methods, providing they are applicable, and the sequence of verifications are the responsibility of the original manufacturer.

The data used, the calculations, and the comparisons conducted when verifying the


switchgear and controlgear assemblies are to be documented in a test report."

Protective measures acc. IEC/EN standardsstandards


Protective Measures – OverviewIEC 60364-4-41 – Part 410

Protective measures

Protection againstdirect contactdirect contact

(basic protection)

Protection against indirect contactindirect contact(fault protection)

Protection againstdirect and indirectdirect and indirect

contact

Insulation oflive parts

Enclosure orcasing

Protectiveextra-low voltage

Functionalextra-low voltage

1 2

Obstacles(e.g. barriers)

Distance Limitation of thedischarge energy

3


Disconnectionor signaling

Protectiveinsulation

Earth-free, localequipotential bonding

Electricalseparation

Non-conductiveenvironment

3

Protective Measures – IEC/EN 60204-1§ 6.2.3 Protection by Insulation of Live Parts 1

Live parts have to be completely encased with insulation. Such insulation must only be removable by way of destruction. The insulation must be capable of withstanding the mechanical, chemical, electrical and thermal

stresses to which it can be subjected under normal operating conditions.Note: Coats of paint, varnish, lacquer, enamel and similar products alone are generally considered to be inadequate for protection against electric shockbe inadequate for protection against electric shock.

Examples include cables/lines and electrical components which are completely encased with insulating material.

This basic insulation: must correspond to the respective overvoltage categories

(compliance with clearances and creepage distances).


must be sufficiently ageing-resistant for the respective service life of the insulated part.

Protective Measures – EN 60204-1§ 6.2.2 Protection by Enclosures (Casings) 2

Live parts must be installed inside enclosures which offer protection against direct contact of at least IP2X or IPXXB.

If the top surfaces of the enclosures are easily accessible, the top surfaces must at least offer degree of protection IP4X or IPXXD.

IP2x or IPxxB: Also referred to as finger-proofIP4x or IPxxD: Also referred to as wire-proof (poke-proof)

Opening of the enclosure (i.e. opening of doors, lids, covers and the like) must only be possible under certain conditions. see next slide


Protective Measures – IEC/EN 60204-1§ 6.2.2 Protection by Enclosures 2

a)a) With keys or toolsWith keys or tools Access only for electrically instructed persons, electrically skilled persons.Live parts which may be touched during resetting, adjustment, etc. must be at least IP2x (IPxxB). Inside of doors at least IP1x or IPxxA.

b)b) Disconnection of live partsDisconnection of live partsbefore the enclosure can be opened, e.g.: Door-coupling operating devicesThe door can only be opened when the disconnecting device is openThe door can only be opened when the disconnecting device is openThe door can only be opened when the disconnecting device is openThe door can only be opened when the disconnecting device is openThe disconnecting device can only be switched ON when door is closedThe disconnecting device can only be switched ON when door is closedAll parts which remain energized after disconnecting must be protected against direct contact (at least IP2x / IPxxB). Such parts must be marked with a warning sign (also see identification of conductors by

l )color).

c)c) Without keys or tools or without disconnectionWithout keys or tools or without disconnectionwhen all live parts at least correspond to IP2x (IP4x) or IPxxB (IPxxD). Barriers must only be removable by means of toolsby means of tools


Barriers must only be removable by means of toolsby means of tools.If barriers are removable without tools, the respective live parts have to be disconnected disconnected automaticallyautomatically.

Protective Measures – IEC/EN 60204-1§ 6.3.3 Protection by Automatic Disconnection 3

The protection device must disconnect the faulty circuit (all live conductors!) within the specified time (Annex A – see below).Target: Avoidance of hazardous situationsThis measure requires co-ordination between:– The type of supply and the earthing system (network type)– The impedance values of the protective conductor system’s different partsThe impedance values of the protective conductor system s different parts– The characteristics of protection devices

a) TN Overcurrent protection devicesIf this is not possible within the specified time, additional equipotential bonding may have to beadditional equipotential bonding may have to be provided

b) TT Residual current devicesc) IT Earth-fault monitoring or residual current

d i (RCD ) ti d/ ti l i l


devices (RCDs); acoustic and/or optical signal

Protective Measures – IEC/EN 60204-1§ 6.3 Protection Against Indirect Contact

In generalIn generalServes the avoidance of hazardous situations in the event of an insulation fault between live parts and bodies.At least one of the following measures has to be taken for every circuit or every part of the electrical equipment:

Automatic disconnection of the supply before any contact may become– Automatic disconnection of the supply before any contact may become hazardous (depending on voltage and duration of contact)

– Measures which prevent the occurrence of a touch voltage

Note:Note:The risk (for persons and livestock) of harmful effects as a result of a touch voltage depends on the voltage level and the duration of exposure.For protection classes of the equipment and protective measures see IEC/EN 61140


For protection classes of the equipment and protective measures, see IEC/EN 61140.

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© Siemens Industry Inc. 2013. All rights reserved.Industry Sector / I IA CE S VPage 2 01/2013 Tools for assisting with documentation

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Information and Recommendations Further Information Sources

Further information Configuration document; Safety applications / Safety Evaluation Tool: UL Guidelines “Industrial control panels for

North America”

Product catalog “Industrial controls”

www.siemens.com/safety-evaluation-tool www.usa.siemens.com/safety

Further UL links:gwww.usa.siemens.com/controls www.ul.com

www.ul.com/database www.nfpa.org www.newapproach.org

Further CE websites:www.newapproach.org

© Siemens Industry Inc. 2013. All Rights Reserved.Industry SectorPage 2 Issue 10/2013

Siemens UL/IEC/CE website www.usa.siemens.com/controlpaneldesign

Information and Recommendations Further Information Sources

Important numbers:www.usa.siemens.com/controlpaneldesign

p

Technical Support: 800-333-7421

Training, Spare Parts, Field Service:800-241-4453


Information and Recommendations SCCR – Information for Siemens control products

http://www.industry.usa.siemens.com/automation/us/en/industrial-controls/tools-and-resources/sccr/Pages/sccr-for-ul508-nec.aspx


UL Database www.ul.com/database


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