Normy

Obsah

ČSN ETSI EN 302 307-2 V1.2.1 The present document specifies the optional extensions of the S2 system, identified by the S2X denomination. The present document also includes amendments to the standard to enable beam hopping operation.

Obsah

ČSN P ISO 6707-1 (73 0000) Tato část ISO 6707 obsahuje obecné termíny a definice s cílem zavést terminologii použitelnou v pozemních a inženýrských stavbách. Zahrnuje a) základní pojmy, které mohou být východiskem pro další specifičtější definice, a b) specifičtější pojmy používané v několika oblastech stavebnictví a často užívané v normách, předpisech a smlouvách.

Obsah

ČSN EN IEC 62325-451-7 This part of IEC 62325 specifies a UML package for the electricity balancing business process and its associated document contextual models, assembly models and XML schemas for use within the European style electricity markets. This part of IEC 62325 is based on the European style market contextual model (IEC 62325-351). The business process covered by this part of IEC 62325 is described in Clause 5. The relevant aggregate core components (ACCs) defined in IEC 62325-351 have been contextualised into aggregated business information entities (ABIEs) to satisfy the requirements of the European style market publication business process.

Obsah

ČSN EN ISO 80601-2-87 Clause 1 of IEC 60601-1:2005+AMD1:2012+AMD2:2020 applies, except as follows: NOTE - The general standard is IEC 60601-1:2005+AMD1:2012+AMD2:2020. Replacement: This document applies to the basic safety and essential performance of a high-frequency ventilator (HFV) in combination with its accessories, hereafter referred to as ME equipment: - intended for use in an environment that provides specialized care for patients whose conditions can be life-threatening and who can require comprehensive care and constant monitoring in a professional healthcare facility; NOTE 1 - For the purposes of this document, such an environment is referred to as a critical care environment. High-frequency ventilators for this environment are considered life-sustaining. NOTE 2 - For the purposes of this document, such a high-frequency ventilator can provide transport within a professional healthcare facility (i.e., be a transit-operable ventilator). NOTE 3 - A high-frequency ventilator intended for use in transport within a professional healthcare facility is not considered as a ventilator intended for the emergency medical services environment. - intended to be operated by a healthcare professional operator; - intended for those patients who need differing levels of support from artificial ventilation including ventilator-dependent patients; and - capable of providing more than 150 inflations/min. There are three principal designations of HFV: - high-frequency percussive ventilation [HFPV, with a typical HFV frequency of (60 to 1 000) HFV inflations/min]; - high-frequency jet ventilation [HFJV, with a typical HFV frequency of (100 to 1 500) HFV inflations/min]; and - high-frequency oscillatory ventilation [HFOV, with a typical HFV frequency of (180 to 1200) HFV inflations/min and typically having an active expiratory phase]. Additionally, HFV designations can be combined together or with ventilation at rates less than 150 inflations/min. * A high-frequency ventilator is not considered a physiologic closed loop-control system unless it uses a physiological patient variable to adjust the ventilation therapy settings. This document is also applicable to those accessories intended by their manufacturer to be connected to an HFV breathing system, or to a high-frequency ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the high-frequency ventilator. If a clause or subclause is specifically intended to be applicable to ME equipment only, or to ME systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME equipment and to ME systems, as relevant. Hazards inherent in the intended physiological function of ME equipment or ME systems within the scope of this document are not covered by specific requirements in this document except in 7.2.13 and 8.4.1 of IEC 60601-1:2005. NOTE 4 - Additional information can be found in 4.2 of IEC 60601-1:2005+AMD1:2012. This document is not applicable to ME equipment that is intended solely to augment the ventilation of spontaneously breathing patients within a professional healthcare facility. This document does not specify the requirements for: - non-high-frequency ventilators or accessories which provide conventional ventilation for use in critical care environments, which are given in ISO 80601-2-12 [23];. NOTE 5 - An HFV can incorporate conventional critical care ventilator operational modes, in which case ISO 80601-2-12 is applicable to those modes. - ventilators or accessories intended for anaesthetic applications, which are given in ISO 80601-2-13 [24]; - ventilators or accessories intended for the emergency medical services environment, which are given in ISO 80601-2-84, the replacement for ISO 10651-3 [13]; NOTE 6 - An HFV can incorporate EMS ventilator capability. - ventilators or accessories intended for ventilator-dependent patients in the home healthcare environment, which are given in ISO 80601-2-72 [26]; - ventilators or accessories intended for home-care ventilatory support devices, which are given in ISO 80601-2-79 [27] and ISO 80601-2-80 [28], the replacements for ISO 10651-6 [15]; - sleep apnoea breathing therapy ME equipment, which are given in ISO 80601-2-70 [25]; - bi-level positive airway pressure (bi-level PAP) ME equipment; - continuous positive airway pressure (CPAP) ME equipment; - respiratory high-flow ME equipment, which are given in ISO 80601-2-90:-1; and - cuirass or "iron-lung" ventilation equipment. This document is a particular standard in the IEC 60601 series, the IEC 80601 series and the ISO 80601 series.

Obsah

ČSN EN 301549 The present document specifies the functional accessibility requirements applicable to ICT products and services, together with a description of the test procedures and evaluation methodology for each accessibility requirement in a form that is suitable for use in public procurement within Europe. The present document is intended to be used with web based technologies, non-web technologies and hybrids that use both. It covers both software and hardware as well as services. It is intended for use by both providers and procurers, but it is expected that it will also be of use to many others as well. The relationship between the present document and the essential requirements of Directive 2016/2102 on the accessibility of the websites and mobile applications of public sector bodies [i.28] is given in Annex A. The present document contains the necessary functional requirements and provides a reference document such that if procedures are followed by different actors, the results of testing are similar and the interpretation of those results is clear. The test descriptions and evaluation methodology included in the present document are elaborated to a level of detail compliant with ISO/IEC 17007:2009 [i.14], so that conformance testing can give conclusive results.

Obsah

ČSN EN IEC 61784-3-3 ed. 4 The IEC 61158 (all parts) fieldbus standard together with its companion standards IEC 61784 1 and IEC 61784 2 defines a set of communication protocols that enable distributed control of automation applications. Fieldbus technology is now considered well accepted and well proven. Thus fieldbus enhancements continue to emerge, addressing applications for areas such as real time and safety-related applications. IEC 61784-3 (all parts) explains the relevant principles for functional safety communications with reference to IEC 61508 (all parts) and specifies several safety communication layers (profiles and corresponding protocols) based on the communication profiles and protocol layers of IEC 61784 1, IEC 61784 2 and IEC 61158 (all parts). It does not cover electrical safety and intrinsic safety aspects. It also does not cover security aspects nor does it provide any requirements for security.

Obsah

ČSN EN ISO 22475-1 (72 1011) This document deals with principles of sampling of soil, rock and groundwater as part of the programme of geotechnical investigation and testing. NOTE 1 - This document fulfils the requirements for sampling of soil, rock and groundwater, and groundwater measurements as part of the programme of geotechnical investigation and testing according to EN 1997-1 and EN 1997-2. The aims of such ground investigations are: a) to recover soil, rock and water samples of a quality appropriate to assess the general suitability of a site for geotechnical engineering purposes and to determine the required ground characteristics in the laboratory; b) to obtain information on the sequence, thickness and orientation of strata and discontinuities; c) to establish the type, composition and condition of strata; d) to obtain information on groundwater conditions and recover water samples for assessment of the interaction of groundwater, soil, rock and construction material. Soil sampling for the purposes of agricultural and environmental soil investigation is not covered. NOTE 2 - Guidance on soil sampling for these purposes including of contaminated or potentially contaminated sites is provided in the ISO 18400 series. ISO 18400-204 provides in addition guidance on sampling and measurement of soil (ground) gas. NOTE 3 - The sampling methods, presented in this document may not be suitable for all types of soil e.g. peat with strong fibrous structure. NOTE 4 - Some of the sampling methods presented in this document are suitable for both soil and rock. Water sampling for the purposes of quality control, quality characterisation and identification of sources of pollution of water, including bottom deposits and sludges, is not covered. NOTE 5 - Water sampling for these purposes can be found in the ISO 5667 series.

Obsah

ČSN ETSI EN 302 307-2 V1.3.1 The present document specifies the optional extensions of the S2 system, identified by the S2X denomination. The present document also includes amendments to the standard to enable beam hopping operation.

Obsah

ČSN EN IEC 62271-101 ed. 3 Tato část IEC 62271 platí hlavně pro vypínače střídavého proudu v rozsahu IEC 62271-100. Dává všeobecná pravidla pro zkoušení vypínačů střídavého proudu a stanovuje požadavky na syntetické zkoušky zapínací a vypínací schopnosti při zkušebních sledech, popsaných v 7.102 až 7.111 z IEC 62271-100:2021. Bylo prokázáno, že syntetické zkoušky jsou ekonomickým a technicky správným způsobem zkoušení vysokonapěťových vypínačů střídavého proudu podle požadavků IEC 62271-100 a že jsou ekvivalentní přímým zkouškám. Popsané metody a techniky jsou obecně používané. Účelem této normy je stanovení kritérií pro syntetické zkoušení a pro správné hodnocení výsledků. Taková kritéria prokáží platnost zkušební metody, aniž by byly omezeny inovace zkušebních obvodů.

Obsah

ČSN EN 13941-1+A1 (38 3370) This document specifies requirements for design, calculation and installation of factory made thermal insulated bonded single and twin pipe systems for buried hot water networks for continuous operation with treated water at various temperatures up to 120 °C and occasionally peak temperatures up to 140 °C for maximum 300 h/a, and maximum internal pressure 2,5 MPa. Flexible pipe systems according to the EN 15632 series are not under the scope of this standard. The standard EN 13941, Design and installation of thermal insulated bonded single and twin pipe systems for directly buried hot water networks consists of two parts: a) EN 13941 1: Design; b) EN 13941 2: Installation. The requirements in this part, EN 13941 1, form a unity with those of EN 13941 2. The principles of the standard may be applied to thermal insulated pipe systems with pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure. Adjacent pipes, not buried, but belonging to the network (e.g. pipes in ducts, valve chambers, road crossings above ground etc.) may be designed and installed according to this standard. This document presupposes the use of treated water, which by softening, demineralization, de-aeration, adding of chemicals, or otherwise has been treated to effectively prevent internal corrosion and deposits in the pipes. NOTE - For further information on water qualities to be used in district heating pipe systems see also bibliographic entry [2]. This standard is not applicable for such units as: a) pumps; b) heat exchangers; c) boilers, tanks; d) systems behind domestic substations.

Obsah

ČSN ETSI EN 302 217-2 V3.3.1 The present document specifies technical characteristics and methods of measurements for Point-to-point (P-P) Digital Fixed Radio Systems (DFRS) operating in frequency bands allocated to Fixed Service (FS) from 1 GHz to 86 GHz, corresponding to the appropriate frequency bands from 1,4 GHz to 86 GHz as described in annex B to annex J. Systems in the scope of the present document are generally intended to operate in full Frequency Division Duplex (FDD) and cover also unidirectional applications. Time Division Duplex (TDD) applications, when possibly applicable in a specific band, are explicitly mentioned as appropriate in annex B through annex J. Systems may be composed by equipment without antennas (see informative annex Q for background) or equipment including integral or dedicated antenna, both cases are in the scope of the present document. The present document covers requirements to demonstrate that radio equipment both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference NOTE - The relationship between the present document and the essential requirements of article 3.2 of Directive 2014/53/EU [i.1] is given in annex A.

Obsah

ČSN EN IEC 60255-187-1 Norma specifikuje požadavky pro hodnocení funkce a výkonu rozdílové ochrany AC motorů, generátorů a transformátorů. Obsahuje specifikaci funkce ochrany, měřicí charakteristiky, kompenzaci napájecích veličin, doplňkové omezovací nebo blokovací metody. Pokrývá neomezované funkce rozdílové ochrany, tradičně kombinované s omezovaným rozdílovým prvkem pro vytvoření jediného rozdílového relé. Norma také obsahuje požadavky na transformátor proudu pro ochranné funkce.