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91 Construction materials and building
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EVS-EN IEC 62561-8:2026
Lightning protection system components (LPSC) - Part 8: Requirements for components for electrically insulated LPS
Scope: This document specifies the requirements and tests for components used for electrically insulated LPS. These components, which can reduce the separation distance, are as follows:
– insulating stand-offs, used in conjunction with an air-termination system and downconductors with the aim of maintaining the proper separation distance;
– insulating down-conductors, including their specific fasteners.
Testing of insulating stand-offs and insulating down-conductor components for an explosive atmosphere is not covered by this document.
– insulating stand-offs, used in conjunction with an air-termination system and downconductors with the aim of maintaining the proper separation distance;
– insulating down-conductors, including their specific fasteners.
Testing of insulating stand-offs and insulating down-conductor components for an explosive atmosphere is not covered by this document.
Base documents: IEC 62561-8:2026; EN IEC 62561-8:2026
ISO 16484-5:2026
Building automation and control systems (BACS) — Part 5: Data communication protocol
Scope: The purpose of this document is to define data communication services and protocols for computer equipment used for monitoring and control of HVAC&R and other building systems and to define, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.
Base documents:
Replaces: ISO 16484-5:2022
ISO/TS 23764:2026
Methodology for achieving non-residential zero-energy buildings (ZEBs)
Scope: This document provides a basic step-by-step approach for achieving non-residential (net) zero-energy buildings (ZEBs). It also describes the basic concept of ZEBs and the items for consideration in this approach.
The following are within the scope of this document:
— application to non-residential buildings;
— annual energy consumption of a ZEB (this includes the operating consumption of the building and excludes the energy consumed by the manufacturing of materials and equipment, and the energy consumed during construction);
— renewable energy supply (this can be on-site or off-site, depending on the policy and conditions of the country in which the supply is installed);
— application to any climate zone.
The following are out of the scope of this document:
— recommendations or suggestions for the adoption of any specific technologies or equipment, or both, and materials that are expected to be continuously innovated (however it does stipulate the technologies for selection);
— specific methods or calculation formulae for design;
— commissioning methods.
The following are within the scope of this document:
— application to non-residential buildings;
— annual energy consumption of a ZEB (this includes the operating consumption of the building and excludes the energy consumed by the manufacturing of materials and equipment, and the energy consumed during construction);
— renewable energy supply (this can be on-site or off-site, depending on the policy and conditions of the country in which the supply is installed);
— application to any climate zone.
The following are out of the scope of this document:
— recommendations or suggestions for the adoption of any specific technologies or equipment, or both, and materials that are expected to be continuously innovated (however it does stipulate the technologies for selection);
— specific methods or calculation formulae for design;
— commissioning methods.
Base documents:
Replaces: ISO/TS 23764:2021
ISO 18994:2026
Plastics — Water meter cabinet — Materials and design specifications
Scope: This document gives the specifications of the thermoplastic water meter cabinets. It specifies the thickness of material, design drawing, dimensions and accessories incorporated into the construction of it for pipe sizes from 12,7 mm to 31,75 mm.
Base documents:
Replaced standards
ISO/TS 23764:2021
Methodology for achieving non-residential zero-energy buildings (ZEBs)
Scope: This document provides a basic step-by-step approach for achieving non-residential (net) zero-energy buildings (ZEBs). It also describes the basic concept of ZEBs and the items for consideration in this approach.
The following are within the scope of this document:
— application to non-residential buildings;
— annual energy consumption of a ZEB (this includes the operating consumption of the building and excludes the energy consumed by the manufacturing of materials and equipment, and the energy consumed during construction);
— renewable energy supply (this can be on-site or off-site, depending on the policy and conditions of the country in which the supply is installed);
— application to any climate zone.
The following are out of the scope of this document:
— recommendations or suggestions for the adoption of any specific technologies and/or equipment and materials that are expected to be continuously innovated (however it does stipulate the technologies for selection);
— specific methods or calculation formulae;
— commissioning methods.
The following are within the scope of this document:
— application to non-residential buildings;
— annual energy consumption of a ZEB (this includes the operating consumption of the building and excludes the energy consumed by the manufacturing of materials and equipment, and the energy consumed during construction);
— renewable energy supply (this can be on-site or off-site, depending on the policy and conditions of the country in which the supply is installed);
— application to any climate zone.
The following are out of the scope of this document:
— recommendations or suggestions for the adoption of any specific technologies and/or equipment and materials that are expected to be continuously innovated (however it does stipulate the technologies for selection);
— specific methods or calculation formulae;
— commissioning methods.
Base documents:
Replaced: ISO/TS 23764:2026
ISO 16484-5:2022
Building automation and control systems (BACS) — Part 5: Data communication protocol
Scope: The purpose of this document is to define data communication services and protocols for computer equipment used for monitoring and control of HVAC&R and other building systems and to define, in addition, an abstract, object-oriented representation of information communicated between such equipment, thereby facilitating the application and use of digital control technology in buildings.
Base documents:
Replaced: ISO 16484-5:2026
Drafts
prEVS-EN 1992-1-1/prNA
Eurocode 2 - Design of concrete structures - Part 1-1: General rules and rules for buildings, bridges and civil engineering structures - Estonian National Annex
Scope: Estonian National Annex to EN 1992-1-1:2023
Base documents:
prEVS-EN 1992-1-2/prNA
Eurocode 2 - Design of concrete structures - Part 1-2: Structural fire design - Estonian National Annex
Scope: Estonian National Annex to EN 1992-1-2:2023
Base documents:
prEN 18380
Water conditioning equipment inside buildings - Devices using UV LED units - Requirements for performance, safety and testing
Scope: This document specifies definitions, principles of construction, requirements and methods for testing the performance of UV devices (240 nm to 290 nm nominal) for potable water installations according to EN 806-2 which are permanently connected to the building’s supply.
Devices described by this document can be installed at the point of entry (POE), within the water distribution system inside the building or at the point of use (POU).
Additionally, the devices described in this document can be used in mobile or temporary potable water installations, where the system is not permanently connected to a water supply.
UV devices in the sense of this document are UV bactericidal treatment devices or UV disinfection devices for one of three specified water qualities, determined by the observed UV transmittance.
Devices can be standalone, integrated into a larger appliance or part of multi-staged treatment process. The document relates solely to the performance of the UV reactor.
Devices described by this document can be installed at the point of entry (POE), within the water distribution system inside the building or at the point of use (POU).
Additionally, the devices described in this document can be used in mobile or temporary potable water installations, where the system is not permanently connected to a water supply.
UV devices in the sense of this document are UV bactericidal treatment devices or UV disinfection devices for one of three specified water qualities, determined by the observed UV transmittance.
Devices can be standalone, integrated into a larger appliance or part of multi-staged treatment process. The document relates solely to the performance of the UV reactor.
Base documents: prEN 18380
EN 1991-1-4:2026/prA1
Eurocode 1 - Actions on structures - Part 1-4: Wind actions
Scope: 1.1 Scope of EN 1991-1-4
(1) This document gives rules for the determination of natural wind actions for the structural design of building and civil engineering works for each of the loaded areas under consideration. This includes actions applied to the whole structure or parts of it, as well as wind-exposed elements attached to the structure.
(2) This document is applicable to:
- buildings and other civil engineering works with heights up to 200 m;
- guyed masts, other open lattice structures and chimneys with heights up to 300 m;
- bridges having no span greater than 200 m.
(3) The rules contained in this document allow the evaluation of characteristic wind actions on land-based structures.
(4) This document is applicable to offshore coastal structures.
NOTE Additional or amended provisions can be necessary.
(5) This document does not give guidance on non-synoptic winds (e.g. thunderstorms, downbursts, microbursts, tornadoes, etc.), mixed wind climates, nor does it give guidance on how to account for local effects (e.g. thermal effects, funnelling, strong arctic thermal surface inversion, etc.).
(6) This document addresses simplified procedures for dynamic effects, mostly based on the assumption of a dominant single-mode response (see Annex E, Annex F and Annex G). General criteria for performing a full dynamic analysis under aerodynamic excitation are not treated in this document.
(7) Wind pressure effects of passing vehicles are outside the scope of this document.
NOTE See EN 1991 2 for wind effects from passing trains.
8) This document also provides guidance on wind tunnel testing and numerical modelling which can be needed or desirable when the shape or structural behaviour are unusual or do not strictly fall within the rules of the document, or in cases of unusual orography or other surroundings.
1.2 Assumptions
(1) The assumptions given in EN 1990-1:2023+A1:2026, 1.2 apply.
(1) This document gives rules for the determination of natural wind actions for the structural design of building and civil engineering works for each of the loaded areas under consideration. This includes actions applied to the whole structure or parts of it, as well as wind-exposed elements attached to the structure.
(2) This document is applicable to:
- buildings and other civil engineering works with heights up to 200 m;
- guyed masts, other open lattice structures and chimneys with heights up to 300 m;
- bridges having no span greater than 200 m.
(3) The rules contained in this document allow the evaluation of characteristic wind actions on land-based structures.
(4) This document is applicable to offshore coastal structures.
NOTE Additional or amended provisions can be necessary.
(5) This document does not give guidance on non-synoptic winds (e.g. thunderstorms, downbursts, microbursts, tornadoes, etc.), mixed wind climates, nor does it give guidance on how to account for local effects (e.g. thermal effects, funnelling, strong arctic thermal surface inversion, etc.).
(6) This document addresses simplified procedures for dynamic effects, mostly based on the assumption of a dominant single-mode response (see Annex E, Annex F and Annex G). General criteria for performing a full dynamic analysis under aerodynamic excitation are not treated in this document.
(7) Wind pressure effects of passing vehicles are outside the scope of this document.
NOTE See EN 1991 2 for wind effects from passing trains.
8) This document also provides guidance on wind tunnel testing and numerical modelling which can be needed or desirable when the shape or structural behaviour are unusual or do not strictly fall within the rules of the document, or in cases of unusual orography or other surroundings.
1.2 Assumptions
(1) The assumptions given in EN 1990-1:2023+A1:2026, 1.2 apply.
Base documents: EN 1991-1-4:2026/prA1
prEN 1931
Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties
Scope: This document specifies a method for the determination of the water vapour transmission properties of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing, damp proof sheets, damp proof courses, underlays and vapour control layers.
Base documents: prEN 1931
prEN IEC 60335-2-73:2026
Household and similar electrical appliances - Safety - Part 2-73: Particular requirements for fixed immersion heaters
Scope: This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of fixed electric immersion heaters for household and similar purposes that are intended for installation in a water tank open to the atmosphere for heating water to a temperature below its boiling point with a rated voltage of not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances.
NOTE 101 The water tank can have alternative means for heating water, such as the circulation of hot water supplied from a separate boiler.
Immersion heaters having a rated power input up to 25 kW for incorporation as an alternative heating source in central heating boilers are also within the scope of this standard.
Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons in shops, in light industry and on farms, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– heating elements incorporated in appliances such as
• appliances for heating liquids (IEC 60335-2-15);
• storage water heaters (IEC 60335-2-21);
• instantaneous water heaters (IEC 60335-2-35);
– aquarium heaters (IEC 60335-2-55);
– portable immersion heaters (IEC 60335-2-74);
– engine preheaters such as those for cars and buses.
This part of IEC 60335 deals with the safety of fixed electric immersion heaters for household and similar purposes that are intended for installation in a water tank open to the atmosphere for heating water to a temperature below its boiling point with a rated voltage of not more than 250 V for single-phase appliances and 480 V for other appliances including direct current (DC) supplied appliances.
NOTE 101 The water tank can have alternative means for heating water, such as the circulation of hot water supplied from a separate boiler.
Immersion heaters having a rated power input up to 25 kW for incorporation as an alternative heating source in central heating boilers are also within the scope of this standard.
Appliances not intended for normal household use but which nevertheless can be a source of danger to the public, such as appliances intended to be used by laypersons in shops, in light industry and on farms, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements can be necessary;
– in many countries additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
– heating elements incorporated in appliances such as
• appliances for heating liquids (IEC 60335-2-15);
• storage water heaters (IEC 60335-2-21);
• instantaneous water heaters (IEC 60335-2-35);
– aquarium heaters (IEC 60335-2-55);
– portable immersion heaters (IEC 60335-2-74);
– engine preheaters such as those for cars and buses.
Base documents: prEN IEC 60335-2-73:2026; IEC 60335-2-73:2024
prEN IEC 60335-2-73:2026/prAA:2026
Household and similar electrical appliances - Safety - Part 2-73: Particular requirements for fixed immersion heaters
Scope: This standard deals with the safety of electric thermal-storage room heaters intended to heat the room in which they are located, their rated voltage being not more than 250 V for single phase and 480 V for other appliances.
Base documents: prEN IEC 60335-2-73:2026/prAA:2026