TRRTP133 - TEHNIČNA SMERNICA TSG-N-003:2009 Zaščita pred delovanjem strele

IEC 62305-2:2010(E) is applicable to risk assessment for a structure due to lightning flashes to earth. Its purpose is to provide a procedure for the evaluation of such a risk. Once an upper tolerable limit for the risk has been selected, this procedure allows the selection of appropriate protection measures to be adopted to reduce the risk to or below the tolerable limit. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  1) Risk assessment for services connected to structures is excluded from the scope.  2) Injuries of living beings caused by electric shock inside the structure are considered.  3) Tolerable risk of loss of cultural heritage is lowered from 10-3 to 10-4. The value of tolerable risk of loss of economic value (RT = 10-3) is introduced, to be used when data for cost/benefit analysis are not available.  4) Extended damage to surroundings structures or to the environment is considered.  5) Improved equations are provided for evaluation of:  - collection areas relevant to flashes nearby a structure,   - collection areas relevant to flashes to and nearby a line,  - probabilities that a flash can cause damage,  - loss factors even in structures with risk of explosion,  - risk relevant to a zone of a structure,  - cost of loss.  6) Tables are provided to select the relative amount of loss in all cases.  7) Impulse withstand voltage level of equipments was extended down to 1 kV.

IEC 62305-3:2010(E) provides the requirements for protection of a structure against physical damage by means of a lightning protection system (LPS), and for protection against injury to living beings due to touch and step voltages in the vicinity of an LPS (see IEC 62305-1). This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  1) Minimum thicknesses of metal sheets or metal pipes given in Table 3 for air-termination systems are assumed as not able to prevent hot-spot problems.  2) Steel with electro-deposited copper is introduced as material suitable for LPS.  3) Some cross-sectional areas of LPS conductors were slightly modified.  4) For bonding purposes, isolating spark gaps are used for metal installations and SPD for internal systems.  5) Two methods - simplified and detailed - are provided for evaluation of separation distance.  6) Protection measures against injuries of living beings due to electric shock are considered also inside the structure.  7) Improved information for LPS in the case of structures with a risk of explosion are given in Annex D (normative).

IEC 62305-1:2010(E) provides general principles to be followed for protection of structures against lightning, including their installations and contents, as well as persons. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  1) It no longer covers protection of services connected to structures.  2) Isolated interfaces are introduced as protection measures to reduce failure of electric and electronic systems.  3) First negative impulse current is introduced as a new lightning parameter for calculation purposes.  4) Expected surge overcurrents due to lightning flashes have been more accurately specified for low voltage power systems and for telecommunication systems.

IEC 62305-4:2010(E) provides information for the design, installation, inspection, maintenance and testing of electrical and electronic system protection (LPM) to reduce the risk of permanent failures due to lightning electromagnetic impulse (LEMP) within a structure. This second edition cancels and replaces the first edition, published in 2006, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:  1) Isolating interfaces capable of reducing conducted surges on lines entering the structure are introduced.  2) Minimum cross-sections for bonding components are slightly modified.  3) First negative impulse current is introduced for calculation purposes as electromagnetic source of harm to the internal systems.  4) Selection of SPD with regard to voltage protection level is improved to take into account oscillation and induction phenomena in the circuit downstream of SPD.  5) Annex C dealing with SPD coordination is withdrawn and referred back to SC 37A.  6) A new informative Annex D is introduced giving information on factors to be considered in the selection of SPDs.

ISO 6707-1:2017 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.

This European Standard specifies the requirements and tests for isolating spark gaps (ISG) for lightning protection systems. ISG's can be used to indirectly bond a lightning protection system to other nearby metalwork where a direct bond is not permissible for functional reasons. Typical applications include the connection to -   earth termination systems of power installations, -   earth termination systems of telecommunication systems, -   rail earth electrode of AC and DC railways, -   measuring earth electrodes for laboratories, -   installations with cathodic protection and stray current systems, -   service entry masts for low- voltage overhead cables, -   bypassing insulated flanges and insulated couplings of pipelines.

This European standard specifies requirements and tests for: − metallic and non-metallic conductor fasteners that are used in conjunction with the air termination system and down conductors; − fixing of fasteners to the fabric / membrane / gravel roofing of structures is not covered by this standard due to the vast number and types used in modern day construction. LPC may also be suitable for use in hazardous atmospheres. Regard should then be taken of the extra requirements necessary for the components to be installed in such conditions.

This European Standard specifies the requirements and tests for metallic connection components such as connectors, bonding and bridging components, expansion pieces as well as test joints for Lightning Protection Systems (LPS). NOTE: Lightning Protection Components (LPC) may also be suitable for use in hazardous conditions such as fire and explosive atmosphere. Regard should be taken of the extra requirements necessary for the components to be installed in such conditions

Specifies the requirements and tests for metallic connection components such as connectors, bonding and bridging components, expansion pieces as well as test joints for Lightning Protection Systems (LPS).

Specifies the requirements for - metallic conductors (other than "natural" conductors) that form part of the air terminations system and down conductors; - metallic earth electrodes that form part of the earth termination system.

Specifies the requirements for - metallic conductors (other than "natural" conductors) that form part of the air terminations system and down conductors; - metallic earth electrodes that form part of the earth termination system.