TRRTP131 - Tehnična smernica TSG-N-002:2009 - Nizkonapetostne električne inštalacije

This part of IEC 60364 provides requirements for initial and periodic verification of an
electrical installation.
Clause 6.4 provides requirements for initial verification, by inspection and testing, of an
electrical installation to determine, as far as reasonably practicable, whether the requirements
of the other parts of IEC 60364 have been met and requirements for the reporting of the
results of the initial verification. The initial verification takes place upon the completion of a
new installation or completion of an addition or an alteration to an existing installation.
Clause 6.5 provides requirements for periodic verification of an electrical installation to
determine, as far as reasonably practicable, whether the installation and all its constituent
equipment are in a satisfactory condition for use and requirements for the reporting of the
results of the periodic verification.

The rusels of this part of IEC 60364 are intended to provide for the safety of persons and equipment in a LV system in the event of a fault between the HV system and earth in the HV part of transformer stations which supply low-voltage systems.

This part of IEC 60079 is concerned with the classification of areas where flammable gas or
vapour hazards may arise and may then be used as a basis to support the proper selection
and installation of equipment for use in hazardous areas.
It is intended to be applied where there may be an ignition hazard due to the presence of
flammable gas or vapour, mixed with air, but it does not apply to:
a) mines susceptible to firedamp;
b) the processing and manufacture of explosives;
c) catastrophic failures or rare malfunctions which are beyond the concept of abnormality
dealt with in this standard (see 3.7.3 and 3.7.4);
d) rooms used for medical purposes;
e) commercial and industrial applications where only low pressure fuel gas is used for
appliances e.g. for cooking, water heating and similar uses, where the installation is
compliant with relevant gas codes;
f) domestic premises;
g) where a hazard may arise due to the presence of combustible dusts or combustible flyings
but the principles may be used in assessment of a hybrid mixture (refer also
IEC 60079-10-2).
NOTE Additional guidance on hybrid mixtures is provided in Annex I.
Flammable mists may form or be present at the same time as flammable vapour. In such case
the strict application of the details in this standard may not be appropriate. Flammable mists
may also form when liquids not considered to be a hazard due to the high flash point are
released under pressure. In these cases the classifications and details given in this standard
do not apply. Information on flammable mists is provided in Annex G.
For the purpose of this standard, an area is a three-dimensional region or space.
Atmospheric conditions include variations above and below reference levels of 101,3 kPa
(1 013 mbar) and 20 °C (293 K), provided that the variations have a negligible effect on the
explosion properties of the flammable substances.
In any process plant, irrespective of size, there may be numerous sources of ignition apart
from those associated with equipment. Appropriate precautions will be necessary to ensure
safety in this context. This standard is applicable with judgement for other ignition sources.
This standard does not take into account the consequences of ignition of an explosive
atmosphere.

EN IEC 60079-14 contains the specific requirements for the design, selection, erection and initial inspection of electrical installations in, or associated with, explosive atmospheres. Where the equipment is required to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, additional protection requirements may be necessary. The requirements of this standard apply only to the use of equipment under standard atmospheric conditions as defined in IEC 60079-0. For other conditions, additional precautions may be necessary, and the equipment should be certified for these other conditions. For example, most flammable materials and many materials which are normally regarded as non-flammable might burn vigorously under conditions of oxygen enrichment. These requirements are in addition to the requirements for installations in non-hazardous areas. This standard applies to all electrical equipment including fixed, portable, transportable and personal, and installations, permanent or temporary. This standard does not apply to - electrical installations in mines susceptible to firedamp; No account is taken in this Standard of the toxic risks that are associated with flammable gases, liquids and dusts in concentrations that are usually very much less than the lower explosive limit. In locations where personnel may be exposed to potentially toxic concentrations of flammable material, appropriate precautions should be taken. Such precautions are outside the scope of this Standard.

This part of the IEC 60079 series applies to users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only, where the hazard may be caused by flammable gases, vapours, mists, dusts, fibres or flyings. It does not include: - other fundamental installation and inspection requirements for electrical installations; - the verification of electrical equipment; - the repair and reclamation of explosion protected equipment (see IEC 60079-19). This standard supplements the requirements of IEC 60364-6. In the case of dusts, fibres or flyings the level of housekeeping may influence the inspection and maintenance requirements. This standard is intended to be applied where there can be a risk due to the presence of explosive gas or dust mixtures with air or combustible dust layers under normal atmospheric conditions. It does not apply to: - underground mining areas, - dusts of explosives that do not require atmospheric oxygen for combustion, - pyrophoric substances.

This part of IEC 60364 addresses the earthing arrangements and protective conductors including protective bonding conductors in order to satisfy the safety of the electrical installation.

IEC 60364-4-43:2008 provides requirements for the protection of live conductors from the effects of overcurrents. IEC 60364-4-43:2008 describes how live conductors are protected by one or more devices for the automatic disconnection of the supply in the event of overload (Clause 433) and short-circuit (Clause 434) except in cases where the overcurrent is limited in accordance with Clause 436 or where the conditions described in 433.3 (omission of devices for protection against overload) or 434.3 (omission of devices for protection against short-circuit) are met. Coordination of overload protection and short-circuit protection is also covered (Clause 435). This third edition cancels and replaces the second edition, published in 2001, and constitutes a technical revision. The main changes with respect to the previous edition are:
- Introduction of new informative Annexes B, C and D.
- Information concerning flexible cables added to Scope.
  - Requirements added for overload detection for the neutral conductor for harmonic currents.
- Requirement that devices for protection against short-circuit current be capable of making as well as breaking short-circuit current added.
- Information added to clarify protection against overload current.
- Requirements where devices for protection against overload need not be provided expanded.
- Requirements where devices for protection against short-circuit need not be provided expanded.
- Requirements for short-circuit current ratings of busbar trunking systems added.[
]The contents of the corrigendum of October 2008 have been included in this copy.

The rules of this Part of IEC 60364 are intended to provide requirements for the safety of electrical installations in the event of voltage disturbances and electromagnetic disturbances generated for different specified reasons. The rules of this part are not intended to apply to systems for distribution of energy to the public, or power generation and transmission for such systems (see the scope of IEC 60364-1) although such disturbances may be conducted into or between electrical installations via these supply systems.

Konsolidiran prevod SIST EN 61140:2002 in SIST EN 61140:2002/A1:2007

This part of IEC 61241 is intended to be applied by users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous areas only. It does not include conventional requirements for electrical installations, nor the testing and certification of electrical apparatus. This standard supplements the requirements laid down in IEC 60364-6-61. This standard assumes effective housekeeping based on a system of cleaning for the plant. The principles of this standard can also be followed when combustible fibres or flyings may cause a hazard. This standard is intended to be applied where there can be a risk due to the presence of explosive dust/air mixtures or combustible dust layers under normal atmospheric conditions. It does not apply to - underground mining areas, - areas where a risk can arise due to the presence of hybrid mixtures, - dusts of explosives that do not require atmospheric oxygen for combustion, or to - pyrophoric substances.

Applicable to electrical apparatus protected by encapsulation type of protection mD and surface temperature limitation for use in areas where combustible dust may be present in quantities which could lead to a fire or explosion hazard. Specifies requirements for design, construction and testing of electrical apparatus, parts of electrical apparatus and Ex components where the rated voltage does not exceed 10 kV. The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protective measures.

Specifies a test method to determine, by application of a d.c. voltage, the electrical resistivity of a layer of dust. Is to be used in the design, construction, testing and application of electrical apparatus for use in the presence of combustible dust. This publication has the status of a technical report.

This document contains the terms and definitions of general concepts to establish a vocabulary
applicable to buildings and civil engineering works.
It comprises:
a) fundamental concepts, which can be the starting point for other, more specific, definitions;
b) more specific concepts, used in several areas of construction and frequently used in standards,
regulations and contracts.

Gives requirements on the design, construction, testing and marking of electrical apparatus for use in combustible dust atmospheres in which a protective gas (air or inert gas) maintained at a pressure above that of the external atmosphere, as used to prevent the entry of dust which might otherwise lead to the information of a combustible mixture within enclosures which do not contain a source of combustible dust.

This part of IEC 60364 deals with the selection of equipment and its erection. It provides
common rules for compliance with measures of protection for safety, requirements for proper
functioning for intended use of the installation, and requirements appropriate to the external
influences foreseen.

Part 4-41 of HD 60364 specifies essential requirements regarding protection against electric shock, including basic protection (protection against direct contact) and fault protection (protection against indirect contact) of persons and livestock. It deals also with the application and co-ordination of these requirements in relation to external influences. Requirements are also given for the application of additional protection in certain cases.

Published without IT snc at IT request BUT contrary to what is stated in D127/C027 - see e-mail exchange received from Mr Pelta on 2006-04-20 - and confirmed by IT NC e-mail to Technical on 2006-09-15

Superseded by HD 60364-4-42:2011

Specifies methods of protection for persons, fixed equipment, and fixed material adjacent to electrical equipment, against: harmful effect of heat developed by electrical equipment or thermal radiation (particularly combustion or degradation of materials) - risk of burns - impairment of the safe function of installed equipment.

Superseded by HD 60364-4-42:2011

In the selection and erection of wiring systems consideration shall be given to the application of the fundamental principles of HD 384-1 to cables and conductors, to their termination and/or jointing, to their associated supports or suspensions and their enclosures or methods of protection against external influences. Note: This part also applies in general to protective conductors but part 5-54 contains further requirements for those conductors.

Supersedes EN 50281-1-2:1998 + A1:2002 together with EN 61241-14:2004

Specifies general requirements for the design, construction, testing and marking of electrical apparatus protected by any recognized safeguard technique for use in areas where combustible dust may be present in quantities that could lead to a fire or explosion hazard. The application of electrical apparatus in atmospheres which may contain explosive gas as well as combustible dust, whether simultaneously or separately, requires additional protective measures.

EN following parallel vote

EN following parallel vote

Corrigendum to EN issued April 1994 * Corrigendum 2 to EN issued December 2005

Supersedes EN 50281-3:2002 * Popravek prevoda naslova: SKLEP št. EXP-21/7

Gives the rules for the design, erection, and verification of electrical installations. The rules are intended to provide for the safety of persons, livestock and property against dangers and damage which may arise in the reasonable use of electrical installations and to provide for the proper functioning of those installations.[
]IEC 60364-1 applies to the design, erection and verification of electrical installations such as those of a) residential premises; b) commercial premises; c) public premises; d) industrial premises; e) agricultural and horticultural premises; f) prefabricated buildings; g) caravans, caravan sites and similar sites; h) construction sites, exhibitions, fairs and other installations for temporary purposes; i) marinas; j) external lighting and similar installations; k) medical locations; l) mobile or transportable units; m) photovoltaic systems; n) low-voltage generating sets.[
]IEC 60364-1 covers[
]a) circuits supplied at nominal voltages up to and including 1 000 V a.c. or 1 500 V d.c.;[
]b) circuits, other than the internal wiring of apparatus, operating at voltages exceeding 1 000 V and derived from an installation having a voltage not exceeding 1 000 V a.c., for example, discharge lighting, electrostatic precipitators;[
]c) wiring systems and cables not specifically covered by the standards for appliances;[
]d) all consumer installations external to buildings;[
]e) fixed wiring for information and communication technology, signalling, control and the like (excluding internal wiring of apparatus);[
]f) the extension or alteration of the installation and also parts of the existing installation affected by the extension or alteration.

D119/049

Corrigenda to EN issued August 1994 and December 1997 (new dow) * Superseded by EN 60439-1:1999