Low-voltage electrical installations - Part 7-709: Requirements for special installations or locations - Marinas and similar locations

IEC 60364-7-709:2007+A1:2012 applies only to circuits intended to supply pleasure craft or houseboats in marinas and similar locations. The particular requirements do not apply to the supply of house boats if they are directly supplied from the public network. The particular requirements do not apply to the internal electrical installations of pleasure craft or house boats. For the remainder of the electrical installation of marinas and similar locations the general requirements of IEC 60364 together with the relevant particular requirements of IEC 60364-7 apply. This second edition of IEC 60364-7-709 cancels and replaces the first edition, published in 1994. It constitutes a technical revision. The major changes with regard to the previous edition concern are the removal of the requirements for the electrical installation in pleasure craft (these are now covered by IEC 60092-507) and the alignment of the requirements with those in other parts of IEC 60364. This consolidated version consists of the second edition (2007) and its amendment 1 (2012). Therefore, no need to order amendment in addition to this publication.

Installations électriques à basse tension - Partie 7-709: Exigences pour les installations ou emplacements spéciaux - Marinas et emplacements analogues

La CEI 60364-7-709:2007+A1:2012 s'applique seulement à l'alimentation des navires de plaisance ou fluviaux dans les marinas et emplacements analogues. Les exigences particulières ne s'appliquent pas à l'alimentation des navires de plaisance ou fluviaux, si ils sont directement alimentés depuis le réseau public. Elles ne s'appliquent pas aux installations électriques intérieures des navires de plaisance ou fluviaux. Les installations électriques autres que celles concernant les circuits terminaux des marinas font l'objet des exigences générales de la CEI 60364, ainsi que des exigences particulières de la CEI 60364-7. Cette deuxième édition de la CEI 60364-7-709 annule et remplace la première édition, parue en 1994. Elle constitue une révision technique. Les modifications principales par rapport à l'édition précédente sont la suppression des exigences pour les installations électriques des navires de plaisance (elles sont maintenant traitées dans la CEI 60092-507), et L'alignement des exigences de cette partie avec celles des autres parties de la série CEI 60364.  Cette version consolidée comprend la deuxième édition (2007) et son amendement 1 (2011). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

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Status
Published
Publication Date
25-Mar-2012
Current Stage
PPUB - Publication issued
Start Date
26-Mar-2012
Completion Date
26-Mar-2012
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IEC 60364-7-709
Edition 2.1 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage electrical installations –
Part 7-709: Requirements for special installations or locations – Marinas and
similar locations
Installations électriques à basse tension –
Partie 7-709: Exigences pour les installations ou emplacements spéciaux –
Marinas et emplacements analogues
IEC 60364-7-709:2007+A1:2012
---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 60364-7-709
Edition 2.1 2012-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Low-voltage electrical installations –
Part 7-709: Requirements for special installations or locations – Marinas and
similar locations
Installations électriques à basse tension –
Partie 7-709: Exigences pour les installations ou emplacements spéciaux –
Marinas et emplacements analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 29.020; 91.140.50 ISBN 978-2-8322-0052-0

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 60364-7-709  IEC:2007
+A1:2012
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

709 Marinas and similar locations ......................................................................................... 6

709.1 Scope .............................................................................................................. 6

709.2 Normative references ....................................................................................... 6

709.3 Terms and definitions ....................................................................................... 6

709.31 Purposes, supplies and structure ..................................................................... 7

709.312 Conductor arrangement and system earthing ................................................... 7

709.313 Supplies ........................................................................................................... 7

709.4 Protection for safety ......................................................................................... 7

709.41 Protection against electric shock ...................................................................... 7

709.413 Protective measure: electrical separation ......................................................... 8

709.5 Selection and erection of electrical equipment ................................................. 8

709.512 Operational conditions and external influences ................................................ 8

709.521 Types of wiring systems ................................................................................... 9

709.533 Devices for protection against overcurrent ..................................................... 10

709.536 Isolation and switching ................................................................................... 10

709.55 Other equipment ............................................................................................ 11

Annex A (informative) Examples of methods of obtaining supply in marinas ......................... 12

Annex B (informative) Example of an instruction notice to be placed in marinas ................... 15

Annex C (informative) List of notes concerning certain countries ......................................... 16

Bibliography .......................................................................................................................... 17

Figure 709A.1 – Direct connection to a single phase mains supply ....................................... 12

Figure 709A.2 – Direct connection to a single phase mains supply with an isolating

transformer on the vessel ..................................................................................................... 12

Figure 709A.3 – Direct connection to a three phase mains supply ......................................... 13

Figure 709A.4 – Direct connection to a three phase mains supply with an isolating

transformer on the vessel ..................................................................................................... 13

Figure 709A.5 – Connection to a single phase supply through a shore-mounted

isolating transformer ............................................................................................................. 14

---------------------- Page: 4 ----------------------
60364-7-709  IEC:2007 – 3 –
+A1:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 7-709: Requirements for special installations or locations –
Marinas and similar locations
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

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with the International Organization for Standardization (ISO) in accordance with conditions determined by

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2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

This consolidated version of IEC 60364-7-709 consists of the second edition (2007)

[documents 64/1573/FDIS and 64/1588/RVD] and its amendment 1 (2012) [documents
64/1811/FDIS and 64/1817/RVD]. It bears the edition number 2.1.

The technical content is therefore identical to the base edition and its amendment and

has been prepared for user convenience. A vertical line in the margin shows where the

base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.
---------------------- Page: 5 ----------------------
– 4 – 60364-7-709  IEC:2007
+A1:2012

International Standard IEC 60364-7-709 has been prepared by IEC technical committee 64:

Electrical installations and protection against electric shock.
The major changes with regard to the previous edition concern:

– the removal of the requirements for the electrical installation in pleasure craft as these are

now covered by IEC 60092-507;

– the requirements of this part have been aligned with those in other parts of IEC 60364.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

The reader’s attention is drawn to the fact that Annex C lists all of the “in-some-country”

clauses on differing practices of a less permanent nature relating to the subject of this

standard.

A list of all the parts in the IEC 60364 series, under the general title Low-voltage electrical

installations, can be found on the IEC website.

Future standards in this series will carry the new general title as cited above. Titles of existing

standards in this series will be updated at the time of the next edition.

The committee has decided that the contents of the base publication and its amendments will

remain unchanged until the stability date indicated on the IEC web site under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The “colour inside” logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this publication using a colour printer.

---------------------- Page: 6 ----------------------
60364-7-709  IEC:2007 – 5 –
+A1:2012
INTRODUCTION

The requirements of this part of IEC 60364 supplement, modify or replace certain of the

general requirements contained in Parts 1 to 6 of IEC 60364.

The clause numbering appearing after 709 refers to the corresponding parts or clauses of

IEC 60364, Parts 1 to 6. Numbering of clauses does not, therefore, necessarily follow

sequentially. Numbering of figures and tables takes the number of this part followed by a

sequential number.

The absence of reference to a part or a clause means that the general requirements

contained in Parts 1 to 6 of IEC 60364 are applicable.
---------------------- Page: 7 ----------------------
– 6 – 60364-7-709  IEC:2007
+A1:2012
LOW-VOLTAGE ELECTRICAL INSTALLATIONS –
Part 7-709: Requirements for special installations or locations –
Marinas and similar locations
709 Marinas and similar locations
709.1 Scope

The particular requirements specified in this part of IEC 60364 apply only to circuits intended

to supply pleasure craft or houseboats in marinas and similar locations.
NOTE 1 In this part “marina” means “marina and similar locations”.

The particular requirements do not apply to the supply of house boats if they are directly

supplied from the public network.

The particular requirements do not apply to the internal electrical installations of pleasure

craft or house boats.
NOTE 2 For electrical installations of pleasure craft, see IEC 60092-507.

NOTE 3 The electrical installations of house boats should comply with the general requirements of IEC 60364,

together with the relevant particular requirements of IEC 60364-7.

For the remainder of the electrical installation of marinas and similar locations the general

requirements of IEC 60364 together with the relevant particular requirements of IEC 60364-7

apply.
709.2 Normative references

The following referenced documents are indispensable for the application of this document.

For dated references, only the edition cited applies. For undated references, the latest edition

of the referenced document (including any amendments) applies.
IEC 60038, IEC standard voltages

IEC 60309-1, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General

requirements

IEC 60309-2, Plugs, socket-outlets and couplers for industrial Purposes – Part 2: Dimensional

interchangeability requirements for pin and contact-tubes accessories

IEC 60364-4-43, Electrical installations of buildings – Part 4-43: Protection for safety –

Protection against overcurrent

IEC 61558-2-4, Safety of power transformers, power supply units and similar – Part 2:

Particular requirements for isolating transformers for general use

IEC 62262, Degrees of protection provided by enclosures for electrical equipment against

external mechanical impacts (IK code)
709.3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
---------------------- Page: 8 ----------------------
60364-7-709  IEC:2007 – 7 –
+A1:2012
709.3.1
pleasure craft

any boat, vessel, yacht, motor launch, houseboat or other floating craft used exclusively for

sport or leisure
709.3.2
marina

facility for the mooring of pleasure craft with fixed wharves, jetties, piers or a pontoon

arrangement capable of berthing one or more pleasure craft
709.3.3
houseboat

floating decked structure which is designed or adapted for use as a place of permanent

residence often kept in one place on inland water
709.31 Purposes, supplies and structure
709.312 Conductor arrangement and system earthing
709.312.2 Types of system earthing
709.312.2.1 TN-systems
Add the following:

For a TN-system, the final circuits for the supply of pleasure craft or houseboats shall not

include a PEN conductor.
709.313 Supplies
709.313.1.2
Add the following:
The nominal supply system voltage shall be selected from IEC 60038.

The nominal supply voltage shall not exceed 230 V single-phase, or 400 V three-phase.

709.4 Protection for safety
709.41 Protection against electric shock
709.411.2 Requirements for basic protection
709.41.B.2 Obstacles
Protection by obstacles shall not be used.
709.41.B.3 Placing out of reach
Protection by placing out of reach shall not be used.
709.41.C.1 Non-conducting location
Protection by non-conducting location shall not be used.
NOTE This precludes the use of class 0 equipment.
---------------------- Page: 9 ----------------------
– 8 – 60364-7-709  IEC:2007
+A1:2012
709.41.C.2 Protection by earth-free local equipotential bonding
Protection by earth free local equipotential bonding shall not be used.
709.413 Protective measure: electrical separation

Where the protective measure of electrical separation is used for supplying pleasure craft

compliance with all the requirements of Clause 413 and with 709.413.3.2 and 709.413.3.6

shall be ensured.

709.413.3.2 The circuit shall be supplied through a fixed isolating transformer complying with

IEC 61558-2-4.

The protective conductor of the supply to the isolating transformer shall not be connected to

the earth terminal in the socket-outlet supplying the pleasure craft.
NOTE See Annex A.
709.413.3.6
Add the following:

The equipotential bonding of the pleasure craft shall not be connected to the protective

conductor of the shore supply.
709.5 Selection and erection of electrical equipment
709.512 Operational conditions and external influences
709.512.2 External influences
Add the following:

NOTE For marinas particular attention is given in this part to the likelihood of corrosive elements, movement of

structures, mechanical damage, presence of flammable fuel and the increased risk of electric shock due to

− presence of water;
− reduction in body resistance;
− contact of the body with earth potential.
709.512.2.1.1 Presence of water (AD)

In marinas, equipment installed on or above a jetty, wharf, pier or pontoon shall be selected

as follows, according to the external influences which may be present:
− water splashes (AD4): IPX4;
− water jets (AD5): IPX5;
− water waves (AD6): IPX6.
709.512.2.1.2 Presence of solid foreign bodies (AE)

Equipment installed on or above a jetty, wharf, pier or pontoon shall be selected with a degree

of protection of at least IP4X in order to protect against the ingress of very small objects

(AE3).
709.512.2.1.3 Presence of corrosive or polluting substances (AF)

Equipment installed on or above a jetty, wharf, pier or pontoon shall be suitable for use in the

presence of atmospheric corrosive or polluting substances (AF2). If hydrocarbons are present

AF3 is applicable.
---------------------- Page: 10 ----------------------
60364-7-709  IEC:2007 – 9 –
+A1:2012
709.512.2.1.4 Impact (AG)

Equipment installed on or above a jetty, wharf, pier or pontoon shall be protected against

mechanical damage (impact of medium severity AG2). Protection shall be afforded by one or

more of the following:

− the position or location of the equipment shall be selected to avoid being damaged by any

reasonably foreseeable impact;
− local or general mechanical protection shall be provided;

− equipment shall be installed which complies with a minimum degree of protection for

external mechanical impact of IK07 (See IEC 62262).
709.521 Types of wiring systems
709.521.7 Wiring systems of marinas

709.521.7.1 The following wiring systems are suitable for distribution circuits in marinas:

a) underground cables;
b) overhead cables or overhead insulated conductors;

c) cables with copper conductors and thermoplastic or elastomeric insulation and installed

within an appropriate cable management system taking into account external influences

such as movement, impact, corrosion and ambient temperature;
d) mineral-insulated cables with PVC protective covering;
e) armoured cables with a thermoplastic or elastomeric covering;

f) other cables and materials that are no less suitable than those listed under a), b), c), d) or

e) above.

709.521.7.2 The following wiring systems shall not be used on or above a jetty, wharf, pier

or pontoon:

a) overhead cables and overhead conductors in free air suspended from or incorporating a

support wire, e.g. as installation method N . 35 and 36 in Table 52-3 of IEC 60364-5-52;

b) insulated conductors in conduits, trunking etc., e.g. as installation methods N . 4 and 6 in

Table 52-3 of IEC 60364-5-52;
c) cables with aluminium conductors;
d) mineral-insulated cables.

709.521.7.3 Cables and cable management systems shall be selected and installed so that

mechanical damage due to tidal and other movement of floating structures is prevented.

Cable management systems shall be installed to allow the drainage of water/condensate e.g.

by sloping way and/or drainage holes.
709.521.7.4 Underground cables

Underground distribution circuits shall, unless provided with additional mechanical protection

be buried at a sufficient depth to avoid being damaged, e.g. by movement of vehicles.

NOTE 1 A depth of 0,5 m is generally considered as a minimum depth to fulfil this requirement.

NOTE 2 For conduit systems buried underground, see IEC 61386-24.
---------------------- Page: 11 ----------------------
– 10 – 60364-7-709  IEC:2007
+A1:2012
709.521.7.5 Overhead cables or overhead insulated conductors
All overhead conductors shall be insulated.

Poles and other supports for overhead wiring shall be located or protected so that they are

unlikely to be damaged by any foreseeable movement of vehicles.

Overhead conductors shall be at a height above ground of not less than 6 m in all areas

subjected to movement of vehicles movement and 3,5 m in all other areas.
709.53.1 Devices for protection against indirect contact by automatic
disconnection of supply
709.531.2 Residual current protective devices (RCD’s)
Add the following:

Every socket-outlet shall be individually protected by an RCD having a rated residual

operating current not exceeding 30 mA. The RCD selected shall disconnect all poles,

including the neutral.

Every socket-outlet with a rated current up to 63 A shall be individually protected by an RCD

having a rated residual operating current not exceeding 30 mA. The RCD selected shall

disconnect all poles, including the neutral.

Every socket-outlet with a rated current above 63 A shall be individually protected by an RCD

having a rated residual operating current not exceeding 300 mA. The RCD selected shall

disconnect all poles, including the neutral.
Account should be taken of the need for selectivity, e.g. by the use of Type S.

Every final circuit intended for the fixed connection of a supply to a house boat shall be

protected individually by an RCD having a rated residual operating current not exceeding

30 mA. The RCD selected shall disconnect all poles, including the neutral.
709.533 Devices for protection against overcurrent
In addition the following applies:

Each socket–outlet shall be individually protected by an overcurrent protective device, in

accordance with the requirements of IEC 60364-4-43.

Every final circuit intended for the fixed connection of a supply to a house boat shall be

individually protected by an overcurrent protective device, in accordance with the

requirements of IEC 60364-4-43.
709.536 Isolation and switching
709.536.2 Isolation
709.536.2.1 General

709.536.2.1.1 At least one means of isolation shall be installed in each distribution board.

This device shall disconnect all live conductors including the neutral conductor.

---------------------- Page: 12 ----------------------
60364-7-709  IEC:2007 – 11 –
+A1:2012
709.55 Other equipment
709.55.1 Socket-outlets general

709.55.1.1 Every socket-outlet with a current rating up to 63 A shall comply with

IEC 60309-2. Every socket-outlet with a current rating over 63 A shall comply with

IEC 60309-1.

Every socket-outlet shall meet the degree of protection of at least IP44 or such protection

shall be provided by an enclosure.

Where the codes AD 5 or AD 6 are applicable the degree of protection shall be at least IPX5

or IPX6 respectively.

709.55.1.2 Every socket-outlet shall be located as close as practicable to the berth to be

supplied.

Socket-outlets shall be installed in the distribution board or in separate enclosures.

709.55.1.3 In order to avoid any hazard due to long connection cords no more than four

socket-outlets shall be grouped together in any one enclosure.

NOTE See Annex B regarding recommended notices to be placed in marinas adjacent to each group of socket-

outlets.
709.55.1.4 One socket-outlet shall supply only one pleasure craft or house boat.

709.55.1.5 In general single phase socket-outlets with rated voltage 200 V – 250 V and

rated current 16 A shall be provided.

Where greater demands are envisaged socket-outlets with higher ratings may be provided.

709.55.1.6 Every socket-outlet, both on fixed jetties or piers and on floating pontoons, shall

be placed in such a position as to avoid the effect of splashing and/or submersion unless

appropriate measures are taken.
---------------------- Page: 13 ----------------------
– 12 – 60364-7-709  IEC:2007
+A1:2012
Annex A
(informative)
Examples of methods of obtaining supply in marinas
Overcurrent Shore Vessel
protective
device
RCD RCD
Flexible cable
three cores
vessel
To metallic parts in contact
with water suronding the vessel
IEC 440/07
NOTE In the Figures 709A.1 through 709A.5 functional switches are not shown.

There is a risk of electrolytic corrosion resulting from circulating galvanic currents in the protective conductor to

shore.
Figure 709A.1 – Direct connection to a single phase mains supply
Shore Vessel
Overcurrent
protective
device
RCD RCD
Flexible cable
three cores
vessel
To metallic parts in contact
with water suronding the vessel
IEC 441/07

No connection shall be made between the PE conductor of the vessel and the PE conductor of the shore supply.

This is to prevent galvanic currents circulating between the hull of the vessel and metallic parts on the shore side.

Figure 709A.2 – Direct connection to a single phase mains supply with an isolating

transformer on the vessel
---------------------- Page: 14 ----------------------
60364-7-709  IEC:2007 – 13 –
+A1:2012
Shore Vessel
Overcurrent
protective
device
RCD RCD
Flexible cable
five cores
vessel
To metallic parts in contact
with water suronding the vessel
IEC 442/07
There is a risk of electrolytic corrosion resulting
...

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