NFC_15-100_English_20021201_preview.pdf

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NF C 15-100

December 2002Classification index: C15-100

French standard

published and distributed by the Union Technique de l'Electricité (UTE) – Tour Chantecoq – 5, rue Chantecoq – 92808 Puteaux CedexTél.: + 33 (0) 1 49 07 62 00 – Fax: + 33 (0) 1 47 78 73 51 – email: [email protected] – Internet: http://www.ute-fr.com/

also distributed by the AFNOR: French Association for Standardisation ("Association Française de Normalisation" in French) – 11, avenue Francis de Pressensé – 93571 Saint-Denis La Plaine Cedex – Tel.: 01 41 62 80 00

Reproduction prohibited

ICS: 29.020; 91.140.50

Low-voltage electrical installations

F: Installations électriques à basse tension

G: Elektrische Niederspannungsanlagen

Officially approved French standard

On the decision of the Managing Director of AFNOR on 5th November 2002,with effect from 5th December 2002.

Intended to replace officially approved standard NF C 15-100 of May 1991 and its

amendments: A1 of December 1994 and A2 of December 1995.

Correspondence Standards of the International Electrotechnical Commission (IEC), series 60364,and harmonisation documents of the European Committee for Electrotechnical

Standardisation (CENELEC), series HD 384 (see table I in the foreword).

Analysis Standards of the International Electrotechnical Commission (IEC), series 60364,and harmonisation documents of the European Committee for Electrotechnical

Standardisation (CENELEC), series HD 384 (see table I in the foreword).

Descriptors Electrical installations, buildings, domestic premises.

Modifications See Foreword.

Corrections


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UTE has taken all reasonable measuresto ensure the accuracy of this translation

but regrets that no responsibility can be accepted

for any error, omission or inaccuracy.

In cases of doubt or dispute,

the original language text only is valid.


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NF C 15-100

- I - 2002

SECTION 1. Scope, object and fundamental principles

SECTION 2. Definitions

SECTION 3. Assessment of the general characteristics of installations

SECTION 4. Protection for safety

SECTION 5. Selection and erection of equipment

SECTION 6. Verification and maintenance of installations

SECTION 7. Requirements for special installations or locations

CONTENTS

INTRODUCTION

CONTENTS

FOREWORD ALPHABETICAL INDEX

___________

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NF C 15-100

- II - 2002

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NF C 15-100

- III - 2002

FOREWORD

1. The new French standard NF C 15-100 was adopted after the preliminary survey of thevarious parts, the examination of the observations received during the survey and approval.

The provisions of this standard apply to structures of which the planning permission request filing date or, in the absence thereof, the date of preliminary declaration of construction or, inthe absence thereof, the contract signature date or, in the absence thereof, the order receipt acknowledgement date is later than 31st May 2003.

2. The revision of standard NF C 15-100 was necessary for the following reasons:

- changes in construction techniques and practices give rise to periodic adaptations and modifications to installation rules;

- the ongoing efforts on an international and European scale to harmonise installation rules.

3. This version of standard NF C 15-100 covers:

- on the one hand, the requirements of the actual standard, which generally incorporate thetexts of international standards or harmonisation documents. These requirements are printed in black upright characters.

- on the other hand, comments that contain recommendations facilitating the application of requirements, based on experience and common usage. In general, these commentsdo not incorporate any international texts, but help explain the corresponding texts and provide justif ica tions for the corresponding rules. These comments can also draw thereader's attention to French regulatory aspects and are printed in blue italic charactersimmediately below the standard reference text.

The references of the sections and parts are indicated at the top of each page.

The compliance of an installation with standard NF C 15-100 requires full compliance with the

normative part.4. The plan of the standard is the plan adopted internationally, through technical committee

no. 64 of the International Electrotechnical Commission, for the definition of standardsconcerning the electrical installations of buildings (Publication 60364 of the IEC).

The numbering of the standard is based on the division into sections, parts, clauses,subclauses and sub-subclauses, as shown by the following example:

472.3.3.2 means:

4 .................................... Section

47 ..................................Part

472 ................................Clause

472.3 .............................. Subclause

472.3.3 and 472.3.3.2 .....Sub-subclauses

5. The requirements of this standard take into account the progress status of work carried out internationally, through both the IEC and the CENELEC.

Table I illustrates the relationship between the texts of the standard and the texts of international documents.


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NF C 15-100

- IV - 2002

5.1 The texts that incorporate those of a CENELEC harmonisation document are marked by the letter in a circle with a double hyphen in the margin.

5.2 The texts marked by the letter in a square and with one hyphen in the margin arethose of the standards adopted through the IEC. They have not yet been harmonised inrelation to the CENELEC but are generally the subject of harmonisation document projects,

account of which has been taken.

5.3 The texts of clauses that are not preceded by either the letter or the letter arenational additions.

6. Overall, the plan of this standard is the same as that of the 1991 standard, since this planis that of international standard IEC 60364.

However, various parts have been combined in order to make it easier to read the standard.The main combinations are:

• Protection against electric shocks: chapter 41 and sections 471 and 481

• Protection against thermal effects: chapter 42 and section 482

• Overcurrent protection: chapter 43 and section 473

• Isolation and control: chapter 46 and section 476 • External influences: chapter 32, clause 512.2 and section 522.

As of the date on which this standard was published, these combinations had not yet beenincorporated at European level.

7. The main changes to this standard relate to the following points:

Section 3:

D.C. systems (312.2.4) and harmonic currents (330.1.1).

Section 4:

• New presentation of requirements on protection against electric shocks (41);

• Protection against the risk of fire (422.1);• Protection against the risk of explosion (422.3);

• Protection against temporary overvoltages (442);

• Protection against overvoltages of atmospheric origin (443);

• Electromagnetic interference limitation measures (444).

Section 5:

• Classification of external influences (512.2);

• Cross-section of conductors in the presence of harmonic currents (524);

• The various types of RCD (531.2.1.5);

• Coordination of protective devices (535);

• Functional earthing (545):• Switchgear and controlgear assemblies (558);

• Safety services (56).

Section 7:

• Temporary electrical installations (711);

• Mobile or transportable units (717);

• Electric heating equipment (753);

• Domestic premises (771)

• Unattended installations (773);

• Electrical operation areas (781).

8. This standard has been approved by the board of directors of the Union Technique del'Électricité and the press release of 24th September 2002.

H

C

H C


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NF C 15-100

- V - 2002

TABLE I

CORRESPONDENCE BETWEEN STANDARD NF C 15-100

AND INTERNATIONAL PUBLICATIONS

Standard NF C 15-100 CENELEC

Harmonisation Document

IEC Publication

SECTION 1 60364-1

SECTION 2 60364-1

SECTION 3 60364-1

SECTION 4

Part 41 60364-4-41

Part 42 HD 384-4-42 60364-4-42

Part 43 60364-4-43

Part 44 HD 384-4-442, HD 384-4-443, prHD 384-4-444

60364-4-44

Part 46 60364-4-41 and 60364-5-53

SECTION 5

Part 51 HD 384-5-51 60364-5-51

Part 52 HD 384-5-523 60364-5-52

Part 53 HD 384-5-537 60364-5-53

Part 54 HD 384-5-54 60364-5-54

Part 55 60364-5-55

Part 56 HD 384-5-56 60364-5-55

SECTION 6

Parts 61, 62 and 63 HD 384-6-61 60364-6-61SECTION 7

Part 701 60364-7-701

Part 702 HD 384-7-702 60364-7-702

Part 703 HD 384-7-703 60364-7-703

Part 704 HD 384-7-704 60364-7-704

Part 705 HD 384-7-705 60364-7-705

Part 706 HD 384-7-706 60364-7-706

Part 707 60364-7-707

Part 708 HD 384-7-708 60364-7-708

Part 709 prHD 384-7-709 60364-7-709Part 711 prHD 384-7-711 60364-7-711 and

60364-7-740

Part 717 60364-7-717

Part 752

Part 753 prHD 384-7-753

Part 771

Part 772

Part 773

Part 781

A blank box means that there is no corresponding document at the IEC or the CENELEC.


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NF C 15-100

- VI - 2002



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NF C 15-100 Index

- VII - 2002

ALPHABETICAL INDEX

The terms preceded by an asterisk are those that designate the external influence categories

defined in clause 512.2. Each term is followed by a letter designating the external influence

category and the corresponding clause number.

A

A.C. voltages (bands) ... ... ... ... ... ... . 222 Definitions

Accessib ili ty ... ... ... ... ... ... ... ... ... .. ... 513.1 General requirements

Accessible (parts) ... ... .. ... ... ... .. ... . 232.6423513.1232.6

DefinitionProtection against risk of burnsGeneral requirementsDefinition

Added protection ..... ... .. ... ... .. ... .. .. 535.2 Between overload protections

Agr icu ltural (Premises) ... ... ... ... ... . 705 Particular requirements

Air nozzles ... ... ... ... ... ... ... ... ... ... ... . 701/ Appendix B2

Bathrooms

Air spaces ... ... ... ... ... ... .. ... ... ... ... ... 262.11

529.4

Definition

Installation requirements Ambient temperature (AA) ... ... ... .. 216.1Table 52K -Table 52L512.2.1523.2

General definitionCorrection factors

CharacteristicsSelection of wiring systems

Anode supply power ... .. ... ... ... .. ... . 133.2.4311512.1.4

FP Selection of equipmentStructure of installationsSelection according to service conditions

Antennae ... ... .. ... .. ... ... .. ... ... ... ... ... 559.4 Selection

Arm's reach ... .. ... ... ... ... ... ... ... ... .. .. 235.141/ Appendix B423

DefinitionNon-conducting premises and locationsProtection against the risk of burns

Assymetry factor ... .. ... .. ... ... .. ... .. .. 523.6 Parallel cables

Atmospheric overvoltages ..... ... ... . 44131.6330.1443534.1

Protection RequirementsGeneral requirementCompatibilityOvervoltage categoriesSelection of protective devices

Attachment of devices ..... .. ... ... ... . 530.4 Requirements

*Flora (AK) .................................. 512.2.8 Characteristics

Automatic disconnection ... ... ... ... .. 411 General requirements

Autonomous ins tal lation ... ... ... .. ... 771/ Appendix B Requirements

Autot ransformers ... ... .. ... ... ... ... ... . 552 Selection

*Water spray (AD3) ..................... 512.2.4 Characteristics

*Atmospheric (AF2) ..................... 512.2.6 Characteristics

*Instructed (people) (BA4) ........... 291.2 Definition

*Instructed (people) (BA4) ........... 512.2.16 Characteristics

*Instructed (people) (BA4) ........... 531.2.2.2 RCD with auxiliary source

B

Barriers ....................................... 235.441/ Appendix A2

DefinitionRequirements

Basic (insulation) ........................236.241/ Appendix A

See InsulationDefinitionGeneral requirements

Bathrooms .................................. 701 Particular requirements

Boiler rooms ............................... 463.1 Emergency switching-off

Boilers ........................................ 559.5.2 Liquid heating devices

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NF C 15-100 Index

- VIII - 2002

Breaking capacity ........................ 254.5434.1435

DefinitionProspective short-circuit currentCoordination of overloadand short-circuit protection

Building cellars ........................... 772.2.3.4.3 Particular requirements

Buildings, lighting of communalparts ........................................... 772.2.3.4.1 Particular requirements

Burns (risks of) ........................... 423 Protection - limiting temperatures

Busbar trunking systems ............. 262.14521.4529.6543.2.2

DefinitionInstallationStandardsProtective conductor

Bushings ..................................... 521.8 IK degree

Bushings ..................................... 527.2 Fire barriers

C

Cabinet ....................................... 558 See switchgear and controlgearassemblies

*Fuels (CA2) ............................... 422.1 Fire-risk premises

*Fuels (CA2) ............................... 512.2.21 Characteristics

Cable brackets ............................ 262.9Table 52B523

DefinitionInstallation methodsConductors' current-carrying capacities

*Corrosives (substances) (AF) ..... 512.2.6 Characteristics

*Solid foreign bodies(presence of) (AE) ....................... 512.2.5 Characteristics

Cable channel ............................. 262.2Table 52B523

DefinitionInstallation methodsConductors' current-carrying capacities

Cable ducts ................................. 262.6521.8527

529.5

DefinitionBushingSelection of wiring systems to limitthe spread of fire

Underground wiring systemsCable gland ................................ 521.7 Erection

Cable ladder ............................... 262.12Table 52C

DefinitionInstallation methods

Cable trays ................................. 262.3521522

523523.4Table 52B543.2.3

DefinitionInstallation methodsSelection according to externalinfluencesCurrent-carrying capacitiesGroup of circuitsInstallation methodsEarthing

Cables ........................................ Table 52ATable 52D

521.6

StandardsUsage

InstallationCables without isolated neutral .... 543.4.2 PEN conductors

Capacitor banks .......................... 557 Selection and erection

Caravans (and sites for) .............. 708 Particular requirements

Chassis ....................................... 558 See switchgear and controlgear assemblies

Circuit ......................................... 251.1314.143

DefinitionDivision of installationsOverload protection

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NF C 15-100 Index

- IX - 2002

Classes .......................................Classe 0 .....................................Classe 0 .....................................

Classe I ......................................Classe II .....................................

237237.141/ Appendix C1

237.2237.3

DefinitionDefinitionRequirements for non-conductingpremises or locationsDefinitionDefinition

Class II cables ............................ 412.2.1 Definition

Class II cables ............................ Table 52A List of class II cables

Classe III .................................... 237.4 Definition

*Climatic (AB) ............................. 512.2.2 Characteristics

Coincidence factor ...................... 215.2311

DefinitionStructure of installations.

Anode supply power

Communication board ................. 771.558.5 Domestic premises

Communication circuits ............... 444.3444.4771.559.6

General requirementsProtectionDomestic premises

Communications ......................... 112330.1771.559.6

ScopeElectromagnetic compatibilityDomestic premises

Compatibility ............................... 330.1512.1.5

CharacteristicsSelection of equipment

Competence of persons (BA) ....... 29512.2.16

DefinitionCharacteristics

Compliance of equipment ............ 511 See Quality

Conductive enclosures ................ 706 Particular requirements

Conductive enclosures*Children (BA2) ........................... 512.2.16 Requirements

Conductor marking ....................... 514.351/Table 51B

GeneralColours

Conductors ................................. Table 52A521.6Table 52D

524

StandardsInstallationUsage

Cross-sectionConductors of different circuits .... 521.6 Requirements

Conduit systems ......................... 520.2.1Table 52E529.1

StandardsUsageInstallation

Conduits ..................................... 262.4Table 52BTable 52C521.6522

523527529.1

DefinitionSelectionInstallation methodInstallation of conductorsSelection according to externalinfluencesConductors' current-carrying capacitiesSelection to limit the spread of fireParticular requirements

Connections ................................ 261.7526


*Construction (materials) (CA) ..... 512.2.21 Erection

Connectors ................................. 559.1 Requirements

Consoles ..................................... 558 See Switchgear and controlgear assemblies

Construction site installations ...... 213.2704

DefinitionParticular requirements

*Hot (AA5) .................................. 512.2.1 Characteristics

Contact switches ......................... 253.5Table 53E

DefinitionSelection

*Contact of people with the earthpotential (BC) .............................. 512.2.18 Characteristics

Continuity of earthing connections 543.3 Requirements

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NF C 15-100 Index

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Control and protectiveswitching devices (CPS) .............. 253.7

Table 53EDefinitionSelection

Control circuits ............................ 465.2 Requirement

Control devices ........................... 462465536.5

IsolationFunctional controlFunctional control devices

Control panel .............................. 771.558.3 Domestic premises

*Waves (AD3) ............................. 512.2.4 Characteristics

Converters .................................. 553.1 Selection

Coordination between protectivedevices ....................................... 535 General requirements

Correction factors ........................ 523.2523.3523.4

For ambient temperatureFor thermal resistivity of the floor For groups of circuits

Cross-section of conductors ........ 132.6523524Table 771F

DesignCurrent-carrying capacitiesRequirementsDomestic premises

Cross-section of the neutral

conductor .................................... 524.2 HarmonicsCubicles ...................................... 558 See: Switchgear and controlgear

assemblies

Current-carrying capacities .......... 252.2433434523Table 52H -Table 52J

DefinitionOverload protectionShort-circuit protectionRequirementsValues

D

D.C. system ................................ 312.2.4 Earthing connections

*Dry (conditions) (BB1) ................ 512.2.17 Characteristics

D.C. voltages (bands) .................. 223414.1.2 DefinitionsSELV and PELV

DC components .......................... 330.1.3531.2.1.5

CompatibilityRCD interference

Design current ........................... 252.1311.3

DefinitionDetermination

Differential protection ................. 415.1411.4411.5411.6531.2Table 771E

Additional protection per RCDTN systemTT systemIT systemSelection of devicesDomestic premises

*Skilled (persons) (BA4) .............. 291.1512.2.16

531.2.2.2

DefinitionCharacteristics

RC devices with auxiliary sourceDirect contact .............................. 131.2.1

231.241/ Appendix A531.2

DesignDefinitionGeneral requirementsUse of RCDs

Discharge lamps (1) ..................... 463.1 Emergency switching-off

Disconnection devices ................. 536.3536.4

For mechanical maintenance (selection)For emergency switching-off (selection)

Disconnection time ...................... Table 41A Values

(1) See NF C 15-150.

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NF C 15-100 Index

- XI - 2002

Distribution board ........................ 251.5558771.558.3

DefinitionSwitchgear and controlgear assembliesDomestic premises (control panel)

Distribution circuits ...................... 251.2Table 41A

DefinitionDisconnection time

Distribution grid ........................... 114141312312.231333443559.6.1

Field of the standardOrigin of installationsDistribution system typesEarthing connection systemsStructures - Supply

Accounting Atmospheric or switching overvoltagesLimitation of disturbances causedby motors

*Electrical resistanceof the human body (BB) ............... 512.2.17 Characteristics

Division of installations ................ 314.1 Structures of installations

Domestic premises ....................... 771 Particular requirements

*Disabled (BA3) .......................... 512.2.16 Characteristics

Double insulation ........................ 236.4

237.3

412

Definition

Classification of the equipment -ProtectionProtection by class II or equivalentinstallation

Drawings ..................................... See diagrams

Ducting lengths ........................... 520.2.1 Standards

*Water splashes (AD4) ................ 512.2.4 Characteristics

Dust (AE) .................................... 422.1424512.2.5

Fire-risk premisesExplosion-risk areasCharacteristics

E

Earth (conductors) ...................... 242.1542.3

DefinitionSelection

Earth (electrodes) ....................... 542.2 See Earth electrodes

Earth electrode resistance ........... 411.5411.6442612.6.2771.411.3.2

TT systemIT systemFaults with installations of higher voltageResistance measurementDomestic premises

Earth electrodes .......................... 241.5241.754254/ Annex C

DefinitionIndependent earth electrodesRequirementsGuide

Earth fault current ....................... 233.4411

DefinitionProtection by automatic disconnectionof supply

Earth-free equipotential bonding .. 41/ Appendix C1 Fundamental principlesEarthing conductor ...................... 242.3

542.3DefinitionRequirements

Earthing connections ................... 312.2241.4411.4411.5411.6442542544

545545.4.2

Earthing connections systemsDefinitionTN systemTT systemIT systemOvervoltage protectionRequirementsRequirements for protectionon TN TT ITfor functional reasonsFor combined reasons

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NF C 15-100 Index

- XII - 2002

Earthing installations ................... 241.4542


Earthing terminal ......................... 242.5542.4

DefinitionErection

Electric shock ............................. 231.141532

DefinitionProtection requirementsSelection and erection of protectivedevices

*Mechanical shocks (AG) ............ 512.2.7.1 Characteristics

Electric supply systemfor safety services. ...................... 213.3.1 Definition

Electric supply systemfor safety services. ...................... 132.4 Design

*Altitude (AC) .............................. 512.2.3 Characteristics

Electrical equipment .................... 511433.2.2512.1.2

Compliance with standardsOvervoltage categoriesDesign current

*Mechanics (stresses)(AG, AH. AJ) ............................... 512.2.7 Characteristics

Electrical operation (area) ........... 41/ Appendix B

551.2.1544.2781

Obstacles and spacing

Erection of generating setsErection of secondary batteriesRequirements

Electrical operation area .............. 781.1781.5

Particular requirementsParticular requirements

Electrical separation .................... 41341/ Appendix C3612.4

Basic requirementsParticular requirementsChecks

Electrodes (devices) .................... 559.3559.5.2

Selection of household appliancesSelection of industrial heating devices

*Electromagnetic (influences)(AM) ............................................ 512.2.10 Selection according to environment

Electromagnetic interference ....... 444.3 Provisions to be taken

Electronic counter ....................... 771/ Appendix D Management, data transmission+Emergency (switching-off) ........... 463

281.3132.9463536.3771.463

See Emergency switching-off DefinitionDesign of installationsRequirementsSelection of devicesDomestic premises

Enclosures .................................. 235.341/ Appendix A2412

DefinitionGeneral requirementsDouble insulation

Equipotential bonding .................. 243.1 Definition

Equipotential bonding conductor .. 243.4544612.6.4.2

DefinitionRequirementsEfficiency check

Exposed-conductive-parts ........... 232.8411.3

DefinitionProtection against indirect contact

External influences ...................... 512.251/ Appendix A

ClassificationList

*Insects (AL) ............................... 512.2.9 Characteristics

*Unstable (structures) (CB4) ........ 512.2.22 Characteristics

Extraneous conductive parts ........ 232.9411.3.1.1415.2543.2.1

DefinitionEquipotential bonding

Additional equipotentia l bondingUsage as protective conductors

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15/27

NF C 15-100 Index

- XIII - 2002

F

Fairs ........................................... 771 Fairs and exhibitions

*Lightning (AQ) ........................... 443512.2.13534

Atmospheric overvoltagesRequirementsSelection of lightning arresters

Fault currents .............................. 233.3411

543.1.1

DefinitionProtection by automatic disconnectionof supplyProtective conductor cross-section

Fault loop impedance .................. 233.2411.4411.5411.6521.5612.6.1612.6.3

DefinitionTN systemTT systemIT systemFerromagnetic enclosuresVerificationVerification Measurement

*Fire (spread of) (CB2) ................ 422.4512.2.22422

422.1422.1.4433.3, 433.4 and 433.5512.2.20527529.1.2.2531.2.3.3

Fire-propagating structuresCharacteristicsProtection

Fire-risk premisesSelection of wiring systemsOmission of overload protection

CharacteristicsFire spreadSelection of conduits RCD selection

Fault voltage ............................... 234.1 Definition

Ferromagnetic materials .............. 521.5 Installation methods

Final circuits ............................... 251.3314Table 41A771.314.2

DefinitionDivision of installationsDisconnection timeDomestic premises

Fire barriers ................................ 527.2 ErectionFire-proofing ............................... See Barriers

Fixed (equipment) ....................... 271.5 Definition

Fixed capacitors .......................... 557 Selection and erection

Flexible cables ............................ 521.6.12 Installation

Floors (conductors or insulators) . 235.2612.5

DefinitionMeasurement of the resistance of...

Fluorescent lighting ...................... 330.1.1 d)524.2

Compatibility - Harmonic currentsCross-section of the neutral conductor

Foundation earth ring .................. 542.2.3.1 Requirements

Frames ....................................... 529.2 Installation

Frequency (2) .............................. 112313330.1.1523.0

FP ScopeCharacteristicsCompatibility LF interferenceCurrent-carrying capacities

*Cold (AA3) ................................. 512.2.1 Characteristics

*Cold (very) (AA5) ....................... 512.2.1 Characteristics

*Refrigerating (AA1) .................... 512.2.1 Characteristics

Fuel (distribution, depot) ............. 752 Particular requirements

Full selectivity ............................. 535.4.3.1 Requirements

(2) See UTE C 15-421.

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16/27

NF C 15-100 Index

- XIV - 2002

Functional control ........................ 281.5465536.5711.462

DefinitionRequirementsEquipment for Fairs and exhibitions

Fuses ......................................... 253.3432533.1533.3Table 53E

DefinitionTypeDevicesSelectionIsolation devices

G

Gangways (operating,maintenance) .............................. 781.4 Minimum distances

Garages ...................................... 752772.2.3.4.2

Liquid fuel distribution areasRequirements for buildings

Gas (supply systems) .................. 411.3.1.1528.2.2411.3.1.1528.2.2542.2.6

Equipotential bondingProximity to wiring systemsMain equipotential bondingProximity to wiring systemsNon-usage as a protective conductor

Generators .................................. 551 RequirementsGroup of circuits .......................... 523.4 Current-carrying capacities

GTL ............................................ 771.558.2 Erection

H

Harmonic currents ....................... 330.1.1 d)33523.5.2524.2

GeneralCompatibilityCurrent-carrying capacitiesCross-section of conductors

Harmonics .................................. 330.1.1523.5.2524.2

LF interferenceLoaded conductorsCross-section of neutral conductors

Heat sources ............................... 522.1 Requirements

*Immersion (AD8) ........................ 512.2.4 Characteristics*Structure of buildings (CB) ......... 512.2.22 Characteristics

Heating (of premises) .................. 753771.314.2.5

Electric heating equipmentDomestic premises

Heating cables ............................ 753.4 Particular requirements

Heating equipment ...................... 423559.5705.422753771.314.2.5

Protection against the risk of burnsIndustrial heating

Agricultural and horticultural p remisesErectionHousing

Heating wiring systems ................ 528.2.1 Vicinity

Height of sockets and boxes......... 555.1.8 Requirements

Home automation ........................ 330.1 Compatibility

Horticultural (Premises) ............... 705 See agricultural*Wet (conditions) (BB1) ............... 512.2.17 Characteristics

Hospitals (3) ................................ See NF C 15-211

Housing technical sheath (GTL) ... 771.558.2 Erection

Humidity (AB) .............................. 512.2.2 Characteristics

*Immersed (conditions) (BB1) ...... 512.2.17701702

CharacteristicsBathroomsSwimming pools

*Immersion (AD7) ........................ 512.2.4 Characteristics

Hydrotherapy (installations of) ..... 701.1 Particular requirements

(3) See NF C 15-211.

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17/27

NF C 15-100 Index

- XV - 2002

I

Independence of installations ...... 132.11515

DesignEquipment

Indirect contact ........................... 131.2.2231.3411.3

531.2

DesignDefinitionGeneral requirements

Use of RCDs*Contamination (risks of) (BE4) ... 512.2.20 Characteristics

Industrial overvoltages ................ 442.2.1534.2

StressesSelection of protective devices

Information processing(equipment) ................................ 545

See ITEarthing (protective and functional)

Inherent control ........................... 443.3.1 Definition

Installation diagrams ................... 514.5 Identification and marking

Installation methods .................... Table 52C Description

*Mould (AK) ................................ 512.2.8 Characteristics

Instructed persons ...................... See Instructed

Instrument transformers .............. 556 Selection and erection

Insulated conductors ................... 261.1521


Insulating walls ........................... 235.2612.5

DefinitionMeasurement of the insulationresistance

Insulation .................................... 236.1214.1612.3

DefinitionDefinitionVerification. Resistance measurement of

*Water spray (AD5) ..................... 512.2.4 Characteristics

Insulator (floor or wall) ................ 235.241/ Appendix C1612.5

DefinitionProtection by spacing or using obstaclesVerification. Resistance measurement

Intermediate parts ....................... 232.7412.2.2

DefinitionEnclosures

Isolating transformers .................. 413.3.2552701.53

RequirementsSelection of equipmentBathrooms

Isolation ...................................... 132.10281.1462461.2536.2771.462

DesignDefinitionRequirementsDevice at originSelection of devicesDomestic premises

Isolation devices ......................... 462536.2

RequirementsSelection

Isolation temperatures ................. Table 52F Maximum values

Isolators ...................................... 253.1

536.2

Definition

Selection and erectionIT system .................................... 312.2.3411.6422.1.7442.2.4.3431.2.2512.1.1531.1.3531.2534.2612.6.1 c)

Earthing connections Automatic disconnectionFire-risk premisesOvervoltagesProtection of the neutral conductor Insulating voltage of equipmentProtection by overcurrent devicesProtection by RCDsPower frequency surge suppressorsChecks and measurements

ITR/ITS system ........................... 442.2.4.3 Earthing

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18/27

NF C 15-100 Index

- XVI - 2002

J

Junction boxes ............................ 526 Requirements

Junctions .................................... 526 Wiring system connections

Keraunic levels ........................... 512.2.13443

771.443

771/ Appendix A

DefinitionProtection against overvoltagesof atmospheric origin

Protection against overvoltagesof atmospheric originLevel chart

Kitchens (large) (4) ....................... 463.1 Emergency switching-off

L

Leakage current .......................... 233.5330.1.3

DefinitionGeneral

Lifts ............................................ 142772.3.2

Installation boundaryParticular requirements

Lighting ....................................... 559.2771.314.2.3

General requirementsDomestic premises

Lighting equipment ...................... 559.2

701.55702.55

Selection and erection

BathroomsSwimming pools

Lightning arresters ...................... 443534.1771.443

OvervoltagesSelection and erectionDomestic premises

Lightning conductor ..................... 443.3 Presence of lightning conductors

Live (parts) ................................. 232.1232.4232.5

Conductors - definitionPart - definitionHazardous part - definition

Live conductor ........................... 232.1312.1462.1 and 536.2.1463

DefinitionSystem typesIsolation

Emergency switching-off

Live parts .................................... 232.441

DefinitionProtection against electric shocks

Load centre ................................. 771.558.4 Domestic premises

Load factor .................................. 215.1311.2

DefinitionStructure of installations.

Anode supply power

*Fauna (AL) ................................ 512.2.9 Characteristics

Loaded conductors ...................... 523.5 Number

Local horizontal bonding system .. 545.2 Requirements

*EMC (AM) .................................. 444.3512.2.10

General provisionsCharacteristics

Location of faults ......................... 537.3 Selection of devices

MMain equipotential bonding .......... 411.3.1.1

542.4.1544.1

RequirementMain earthing terminalEquipotential bonding conductors

Main protective conductor ........... 242.2 Definition

Maintainability ............................. 34 General characteristics

Marinas ....................................... 709 Particular requirements

Marking ....................................... 514 General - Switchgear and controlgear

Marking (of insulated conductors) 514.3 Requirements

Materials (reaction to fire) ........... 42/ Appendix Classification

(4) See NF C 15-201.

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19/27

NF C 15-100 Index

- XVII - 2002

Measures to protect against directcontact ........................................ 411.2

41/ Appendix A411.341/ Appendix B

General requirementsRequirementsGeneral requirementsParticular requirements

Measuring instruments ................ 556 Selection and erection

Mechanical maintenance ............. 464536.4

RequirementsSelection of devices

Minimum cross-sections .............. 524.1 Depending on types and uses

Minimum distances ....................... 781.4 Requirements – Electrical operation area

Mobile (equipment) ..................... 271.2559.1.2

DefinitionConnection of devices

Mobile units ................................ 717 Particular requirements

Motor vehicles (supply of) ............ 717 Particular requirements

*Vibrations (AH) .......................... 512.2.7.2 Characteristics

*Wind (AR) .................................. 512.2.15 Characteristics

Motors ........................................ 445559.6772.2.3.2

Protection against voltage reductionsStarting and disturbancesCalculation of cross-sections for lifts

Mouldings ................................... 262.8Table 52E523529.2

DefinitionUsageConductors' current-carrying capacitiesInstallation

*Movement of buildings (CB3) ..... 512.2.22 Characteristics

*Movement of the air (AR) ........... 512.2.14 Characteristics

Multi-conductor (or multi-core)cables ......................................... 261.4 Definition see cables

Neutral (conductor) ..................... 232.2524.2330.1.1 d)543.4.2

DefinitionCross-sectionHarmonic currentsCables without isolated neutral (PEN)

- Isolation 461.3 Non-isolation of the PEN

- Marking 514.3 Insulated conductors

- Protection ................................. 431.2 against overcurrents

N

Neutral conductor ........................ 232.2312.2.3524.2431.2524.2.4461.3524.2524.3

DefinitionDistribution - Restrictions for IT systemHarmonics - Neutral cross-sectionProtectionNeutral conductor restrictionIsolation on TNC and TNS systemsCross-section equality with phasesReduced cross-section in relationto the phases

Nominal voltage (of an installation) 221.1313.1.1512.1.1

DefinitionSupply characteristicsaccording to service conditions

Non-conductive areas .................. 41/C.1 See non-conductive premises

Non-conductive floor (or wall) ...... 41/ Appendix C1612.5

See Non-conductive premisesResistance measurement

Non-conductive premises ............ 41/ Appendix C1 Protection

Number of feed points (per circuit) 771.314.2 Domestic premises

O

Obstacles .................................... 235.641/ Appendix B1


Operational earth ......................... 545 Requirements

Origin of the installation .............. 141211.3461.2

DefinitionDefinitionIsolation and control

Ovens ......................................... 559.5.1 Requirements

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20/27

NF C 15-100 Index

- XVIII - 2002

Overcurrent protective device ...... 531.1 Selection

Overcurrents ............................... 131.4132.8252.3252.443533

General requirementDesign – Protective devicesFuseCircuit breaker Protection requirementsSelection and erection

*Atmospheric overvoltage (AQ) .... 443.3443.4512.2.13

Provisions for controlling overvoltagesSelection of equipmentCharacteristics

Overhead lines ............................ 529.7 Requirements

Overload currents ....................... 252.4433435533.2

DefinitionOverload protectionCoordination of protectionsSelection of overload protection devices

Overload protection ..................... 131.4251.443533535

FP Protection against thermal effectsDefinitionGeneral requirementsSelection of devicesCoordination between devices

Overload protection devices ........ 533.1533.2

GeneralSelection

Overloads ................................... 252.4433435533.2

DefinitionProtectionCoordination of protectionsSelection and erection of devices

Overvoltage categories ................ 443.2.2534.1

DescriptionSelection of lightning arresters

P

Parallel cables ............................ 523.6 Requirements

Parallel conductors ..................... 433.6434.4

523.6

Overload protectionShort-circuit protection

RequirementsPartial selectivity ......................... 535.4.3.2 Requirements

PEN conductor ............................ 232.3422.1.8424.11462.1463.2461.2

DefinitionFire-risk premisesExplosion-risk premisesIsolation and disconnectionEmergency switching-off Isolation and control at origin

Permanent insulation monitoringdevice (IMD) ............................... 411.6.3

537.1Obligation for IT systemsSelection

Permissible temperature .............. 132.6423523.1

Design Cross-section of conductors Accessible parts of electrical equipmentInsulation of conductors

Pilot wire ..................................... 753.6.2771.462.2

IsolationDomestic premises

Placing out of reach .................... 41/B.2 Fundamental principles

Pleasure craft ............................. 709 marinas and boats

Pleasure craft harbours ............... 709 See Marinas

Portable (equipment) ................... 271.1 Definition

Posts, pillars ............................... 410.3.7529.7

Omission of protectionRequirements (overhead lines)

*Earth potential (BC) ................... 512.2.18 Characteristics

Prefabricated*Presence of solid foreign bodies .*Presence of water (AD) ..............

512.2.5512.2.4

See Wiring systemsCharacteristicsCharacteristics

Prospective touch voltage ........... 234.3

411.3.2

Definition

Disconnection time

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NF C 15-100 Index

- XIX - Update: June 2005

Protection against electric shocks 131.2.1131.2.2410.1531535

Design - Direct contactDesign - Indirect contactGeneral requirementsSelection of devicesCoordination between devices

Protective (conductors) ............... 242.1543612.2612.6.4771.411.3.3

DefinitionRequirementsContinuity checkMeasurement of their resistanceDomestic premises

Protective control ........................ 443.3.2 Definition

Protective measures ....................- by automatic disconnection .......- by double insulation ..................- by electrical separation .............- by very low voltage ...................

411 to 414411412413414

Selection of measuresRequirementsRequirementsRequirementsRequirements

Proximity of wiring systems ......... 528 Requirements

Public premises ........................... 3536

Safety servicesSupply for safety services

*Evacuation of people (BD) ......... 512.2.19 Characteristics

*Explosions (risks of) (BE3) ......... 424512.2.20752

Locations - RequirementsCharacteristicsLiquid fuel distribution areas

Pumps ........................................ 464 Switching-off for mechanicalmaintenance

Q

Quality of equipment ................... 511 Requirements

R

Rated (value) .............................. 212.1254.1

DefinitionRated current of a protective device

Rated impulse withstand voltage .. 512.1.6

Table 44B

General

Values required for equipmentRated voltage .............................. 133.2.1512.1.1

Selection of electrical equipmentSelection according to service conditions

RCD ........................................... 253.6415.1411.4.4531.2.4.1411.5.3531.2.4.2411.6.5531.2.4.3531.2.5773431.1

431.2531.2536.2536.3Table 771E432533535.1535.4.3

Definition Additional protectionTN systemSelectionTT systemSelectionIT systemSelectionUse of 30 mA RCDsProtection of unattended installationsProtection of phase conductors

Protection of the neutral conductor SelectionCombination with overcurrent devicesCoordination of RCDsDomestic premisesTyre of devicesSelection of devicesSelectivity of devicesCombination with RCD

RCD types .................................. 531.2.1.5 Erection

Reaction to fire ............................ 42/ Appendix Classification of materials

Recessed (assembly) .................. 529.1.2 Requirements

- Wiring systems ......................... 513.2

Table 52B523529.1

Accessibili ty

Installation methodsCurrent-carrying capacitiesParticular requirements

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NF C 15-100 Index

- XX - Update: June 2005

Recessing box ............................ 530.4.3 Recessing conditions

Rectifiers .................................... 330.1.1 d)553.1

Harmonic currentsSelection

Reduction factor .......................... 512.2.20523.5.2

For BE3 wiring systemsFor live neutral

Reference methods ..................... Table 52G Requirements

Reinforced insulation ................... 236.5237.3412

DefinitionDefinition - ClassificationProtection

Reinforced protective conductor .. 543.7 Requirements

Remote control switches ............. 536.5 Functional control

Residual current .......................... 233.7411.5.1411.5.2531.2

DefinitionTN systemTT systemRCD selection

Resistance of protectiveconductors or equipotentialbondings ..................................... 415.2

612.6.4Supplementary equipotential bondingEquipotential bonding resistancemeasurement

S

Safety (services) ......................... 3556213.3313.2351353561

InstallationsSelection and erectionDefinitionCharacteristicsGeneralSources for ...Particular requirements

*Earthquake (AP) ........................ 512.2.12 General provisions

Safety transformers ..................... 414.3 Sources

Saunas ....................................... 703 Particular requirements

Secondary batteries .................... 554

554

See batteries

Selection and erectionSelectivity ................................... 314.2535.1535.4

Final circuitsBetween overload protectionsBetween RCDs

Semi-permanent (installations) .... 213.1.3364213.1.3364

DefinitionTemporary installationsDefinitionRequirements

Sheath (of a cable) ...................... 261.5 Definition

Sheath (ventilation, smokeextraction) ................................... 528.2

528.2.1Proximity of wiring systemsPassage of wiring systems

Short-circuit currents ................... 252.5313.1.1

434434.3

435533.3

DefinitionSupply characteristics

Short-circuit protectionOmission of short-circuit protectiondevicesCoordination of protective devicesSelection of protective devices

Short-circuit protection devices .... 533.3 Selection

Short-circuits ............................... 252.5434435533.3

DefinitionProtectionCoordination of protectionsSelection of devices, etc.

Showers ...................................... 701.71 Particular requirements

Simultaneously-accessible parts .. 232.641/ Appendix B

DefinitionSpacing and obstacles

Single-conductor (or single-core)cables ......................................... 261.3 Definition see cables

Skilled persons ........................... See Skilled

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NF C 15-100 Index

- XXI - 2002

Skirting ...................................... 262.8Table 52B523529.2

DefinitionInstallation methodsConductors' current-carrying capacitiesInstallation

*Pollutants (substances) (AF) ...... 512.2.6 Characteristics

Smoke (pipes) ............................. 528.2.1 Proximity to wiring systems

Socket-outlet ............................... 551.1771.314.2.1 RequirementsDomestic premises

*Solar (radiation) (AN) ................. 512.2.11 Characteristics

Sockets ....................................... 142555.1555.1.6555.1.7704.555.1708.530.2709.530.3

Load side limit of the installationsSelection and erectionSealing plugsHeightConstruction sitesSites and caravansMarinas and boats

Sockets - Very low voltage .......... 414.4 SELV and PELV

Standby supply ........................... 132.4213.3.4313.2

353

DesignDefinitionCharacteristics

SourcesStarting current ........................... 559.6

330.1.1 c)See motor startingGeneral

Starting equipment ...................... 553.2.2559.6

Semiconductor startersMotors

Steam (supply systems) .............. 528.2.2 Proximity to wiring systems

Steam traces ............................... 528.2 Proximity to wiring systems

Supplementary equipotentialbonding ....................................... 415.2

544.2701.415.2702.415.2705.415.2

General requirementEquipotential bonding conductorsBathroomsSwimming pools

Agricultural and horticultural p remises

Supplementary insulation ............ 236.3 DefinitionSurge suppressors ...................... 442

534.2Faults with installations of higher voltageSelection and erection

Swimming pools .......................... 702 Particular requirements

Switches ..................................... 253.2Table 53E

DefinitionControl and isolation devices

Switchgear and controlgear ......... 270.353530.4.3

DefinitionProtection – Control - IsolationRecessing in walls

Switchgear and controlgear assemblies .................................. 558 Requirements

Switching devices ....................... 526555.1

Of conductorsSocket-outlets

Switching devices for luminaires .. 559.1.1771.314.2.3 RequirementDomestic premises

Switching devices for luminaires(DCL) .......................................... 771.314.2.3 Domestic premises

Switching-off for mechanicalmaintenance ............................... 281.2

464536.4

DefinitionRequirementsSelection of devices

T

Temperature rises ....................... 423 See Thermal (effects)

Temporary (installations) ............. 213.136

DefinitionGeneral requirements

Test platforms ............................. 463.1 Emergency switching-off

Thermal (effects) ......................... 42 ProtectionThermal resistivity of floors .......... 523.3 Values

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NF C 15-100 Index

- XXII - 2002

TN system .................................. 312.2.1411.4422.1.8442.2.4.1444.3.12461.3462.1

463.2531.1.1531.2612.6.1 a)41/ Appendix D1

Earthing connections Automatic disconnectionFire-risk premisesOvervoltagesElectromagnetic interferenceGeneralOmnipolar breaking

Emergency switching-off Protection by overcurrent devicesProtection by RCDsChecks and measurementsGrid connection

TNR/TNS diagram ....................... 442.2.4.1 Earthing

TNR/TNS system ........................ 442.2.4.2 Earthing

Touch temperatures .................... 423 Values

Touch voltage ............................. 234.2 Definition

Transformers .............................. 552 Selection

Trays .......................................... 262.3Table 52C523

DefinitionInstallation methodConductors' current-carrying capacities

Trunking ..................................... 262.8Table 52ETable 52B521.6522.3

523529.3

DefinitionUsageInstallation methodsInstallation of conductorsSelection according to externalinfluencesConductors' current-carrying capacitiesErection

*Water droplets (falling) (AD2) ..... 512.2.4 Characteristics

TT system ................................... 312.2.2411.5422.1.7442.2.4.241/ Appendix D1531.1.2531.2612.6.1 b)

Earthing connections Automatic disconnectionFire-risk premisesOvervoltagesTN/TT compatibilityProtection by overcurrent devicesProtection by RCDsChecks and measurements

Tunnels ....................................... 262.7 Definition

Type A RCD ................................ 531.2.1.5Table 771E

Definition, generalSelection

U

Unattended installations .............. 773 Particular requirements

Underground (wiring systems) ..... 523523.3529.5Table 52B

708.52

Current-carrying capacitiesThermal resistivity of floorsInstallation requirementsInstallation methods

Sites and caravans

V

Very Low Voltage - FELV ............ 411.7 General requirements

Very Low Voltage - PELV ............ 414.1414.3414.4

voltage band limitsSourcesInstallation of circuits

Very Low Voltage - SELV ............ 414.1414.3414.4701.41702.41703.414.4.7706.410.3

Voltage band limitsSourcesInstallation of circuitsBathroomsSwimming poolsSaunasConductive enclosures

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NF C 15-100 Index

- XXIII - 2002

____________

Voltage (drops) ........................... 132.6525525

Design Cross-section of conductorsPermissible values

Acceptable limits

Voltage bands ............................. 222223442

528.1

Definition (a.c.)Definition (d.c.)Insulation fault with higher-voltageinstallations

Proximity to other wiring systemsVoltage reduction ......................... 445 Protection

Voltage stresses ......................... 442.2.1442.2.5.1442.2.5.2442.5442.6442.7

Permissible valuesTN and TT limitationIT limitationFailure of the neutral conductor First fault on IT systemNeutral-phase short-circuit

Voltages ..................................... 313.1.1512.1.1

Tolerances - VariationsRated

W

Wall-mounted wiring systems ...... 262.1

Table 52B523

Definition

Installation methodsCurrent-carrying capacities

Water (piping of) ......................... 411.3.1.1 Equipotential bonding

*Water (presence of) (AD) ........... 512.2.4 Characteristics

Water supply systems ................. 411.3.1.1528.2.2542.2.6

Main equipotential bondingProximity to wiring systemsNon-usage as a protective conductor

Wet (BB conditions) .................... 512.2.17 Characteristics

Wiring system marking ................. 514.2 General

Wiring systems ............................ 261.652


Work installations ........................ 213.1.2363


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26/27

NF C 15-100 Index

- XXIV - 2002



27/27

NF C 15-100 Section 1

Section 1 – Scope, object and fundamental principles

11 SCOPE ..................................................................................................................................... 2

12 OBJECT .................................................................................................................................... 5

13 FUNDAMENTAL PRINCIPLES ................................................................................................ 5

131 Protection for safety .................................................................................................................. 5

132 Design of electrical installations ................................................................................................ 7

133 Selection of electrical equipment ............................................................................................ 10

134 Erection and initial verification of electrical installations ......................................................... 12

14 LIMITS OF INSTALLATIONS ................................................................................................. 12

141 Origin of installations .............................................................................................................. 12

142 Load-side limit of installations ................................................................................................. 13
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