Normy

Obsah

ČSN ETSI EN 302 307-1 V1.4.1 The present document: "gives a general description of the DVB S2 system; "specifies the digitally modulated signal in order to allow compatibility between pieces of equipment developed by different manufacturers. This is achieved by describing in detail the signal processing principles at the modulator side, while the processing at the receive side is left open to different implementation solutions. However, it is necessary in the present document to refer to certain aspects of reception; "identifies the global performance requirements and features of the System, in order to meet the service quality targets.

Obsah

ČSN EN 61158-4-22 ed. 2 This part of IEC 61158 specifies procedures for the timely transfer of data and control information from one data-link user entity to a peer user entity, and among the data-link entities forming the distributed data-link service provider and the structure of the fieldbus DLPDUs used for the transfer of data and control information by the protocol of this standard, and their representation as physical interface data units.

Obsah

ČSN EN 61158-6-13 ed. 2 The Fieldbus Application Layer (FAL) provides user programs with a means to access the fieldbus communi-cation environment. In this respect, the FAL can be viewed as a "window between corresponding application programs." his standard provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This standard specifies interactions between remote applications and defines the externally visible behavior provided by the fieldbus application layer in terms of the formal abstract syntax defining the application layer protocol data units conveyed between communicating application entities; the transfer syntax defining encoding rules that are applied to the application layer protocol data units; the application context state machine defining the application service behavior visible between communicating application entities; the application relationship state machines defining the communication behavior visible between communicating application entities. The purpose of this standard is to define the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5, and define the externally visible behavior associated with their transfer.

Obsah

ČSN EN 61158-6-20 ed. 3 The Fieldbus Application Layer (FAL) provides user programs with a means to access the fieldbus communi-cation environment. In this respect, the FAL can be viewed as a "window between corresponding application programs." his standard provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This standard specifies interactions between remote applications and defines the externally visible behavior provided by the fieldbus application layer in terms of the formal abstract syntax defining the application layer protocol data units conveyed between communicating application entities; the transfer syntax defining encoding rules that are applied to the application layer protocol data units; the application context state machine defining the application service behavior visible between communicating application entities; the application relationship state machines defining the communication behavior visible between communicating application entities. The purpose of this standard is to define the protocol provided to define the wire-representation of the service primitives defined in IEC 61158-5, and define the externally visible behavior associated with their transfer.

Obsah

ČSN EN 61158-5-22 ed. 2 The fieldbus application layer (FAL) provides user programs with a means to access the fieldbus communi-cation environment. In this respect, the FAL can be viewed as a "window between corresponding application programs." This standard provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life. This standard defines in an abstract way the externally visible service provided by the fieldbus application layer in terms of an abstract model for defining application resources (objects) capable of being manipulated by users via the use of the FAL service, the primitive actions and events of the service, the parameters associated with each primitive action and event, and the form which they take and the interrelationship between these actions and events, and their valid sequences. The purpose of this standard is to define the services provided to the FAL user at the boundary between the user and the application layer of the fieldbus reference model, and Systems Management at the boundary between the application layer and Systems Management of the fieldbus reference model.

Obsah

ČSN IEC 60050-651 Tato část IEC 60050 definuje termíny vztahující se na práce pod napětím. Podle Pokynu IEC 108 Směrnice pro zajištění konzistentnosti (vzájemného souladu) publikací IEC - Použití horizontálních norem má status horizontální normy. Cílem této IEV části je poskytnout přesné, stručné a správné definice mezinárodně uznávaných pojmů v oblasti práce pod napětím a pojmenovat podmínky, za kterých se tyto definované pojmy stanou známými. POZNÁMKA: V IEC 60743, Práce pod napětím - Terminologie pro nástroje, předměty a zařízení jsou uvedeny doplňkové termíny a definice. Tato horizontální norma je primárně určena technickým komisím pro přípravu norem v souladu s principy stanovenými v Pokynu IEC 108. Jednou z odpovědností technické komise je používat při tvorbě svých publikací horizontální normy všude tam, kde je to vhodné. Obsah této horizontální normy se neuplatní, pokud se na něj v příslušných publikacích nebude výslovně odkazovat nebo do nich nebude začleněn.

Obsah

ČSN EN 60320-3 This part of the lEC 60320 sets the dimensions for appliance couplers for two poles and two poles with earth contact - for the connection of electrical devices for household and similar onto the mains supply and - for the interconnection of the electrical supply to appliance or equipment - and dimensions for gauges.

Obsah

ČSN EN ISO 16911-1 EN ISO 16911-1 stanovuje metody pro periodické měření osové rychlosti proudění a průtoku plynu potrubími a komíny při měření emisí. Lze ji použít pro potrubí kruhového nebo čtyřhranného průřezu v měřicích místech, které splňují požadavky EN 15259. Minimální a maximální potrubí jsou determinovány měřicími přístroji popsanými v EN ISO 16911-1.

Obsah

ČSN ETSI EN 302 637-3 V1.2.2 Tato norma uvádí specifikaci základní služby DEN, která slouží k podpoře aplikace RHW. Konkrétněji tato norma specifikuje syntaxi a sémantiku zprávy decentralizovaného hlášení okolní situace (DENM) a zpracování protokolu DENM. Základní služba DEN může být implementována v ITS-S ve vozidle, v ITS-S na straně infrastruktury, v osobní ITS-S nebo centrální ITS-S.

Obsah

ČSN EN 442-2 ČSN EN 442-2 je českou verzí evropské normy EN 442-2:2014. Jsou zde stanoveny postupy pro zjišťování jmenovitých tepelných výkonů a dalších charakteristik otopných těles, pracujících s teplonosnou látkou vodou nebo párou o teplotách nižších než 120 °C se vzdáleným zdrojem tepla, která jsou určena k trvalému zabudování do otopných soustav v budovách. Norma určuje příslušná laboratorní zařízení a zkušební postupy, přípustné tolerance a kritéria pro výběr zkušebních vzorků a pro ověřování shody mezi běžnou výrobou a zkušebními vzorky podrobenými úvodní zkoušce. Rovněž jsou uvedeny požadavky na podklady, které musí výrobce poskytnout, aby bylo zajištěno správné používání jeho výrobků. Norma nově zahrnuje trubková otopná tělesa, popisuje různé povrchové úpravy a obsahuje nové normativní přílohy. Tato norma neplatí pro podlahové konvektory a pro otopná tělesa a konvektory s ventilátorem a pro nezávislé lokální spotřebiče určené k vytápění.

Obsah

ČSN EN 16602-70-28 The requirements and procedures for repair and modification detailed in this Standard are designed to maintain the rigorous standards set by the customer for the manufacture and assembly of space-quality printed circuit boards. This Standard is confined to the repair and modification of singlesided, doublesided and multilayer printed circuit board assemblies. This Standard does not address the potential need for rework resulting from a repair or modification and unassembled (bare) printed circuits boards. This standard may be tailored for the specific characteristics and constraints of a space project, in conformance with ECSS-S-ST-00.

Obsah

ČSN EN 16602-70-01 The purpose of this standard is to define: o The selection of critical items, the definition of cleanliness requirements to satisfy the mission performance requirements and control the levels to be met by personnel, items, facilities and operations of space projects. o The management, including organization, reviews and audits, acceptance status and documentation control. It covers design, development, production, testing, operation of space products, launch and mission. In this standard are also guidelines given for identification of possible failures and malfunctions due to contamination and guidelines for achieving and maintaining the required cleanliness levels during ground activities, launch and mission. This Standard applies to all types and combinations of projects, organizations and products, and during all the project phases, except manned missions. It also applies to those ground systems that have a hardware interface to space systems, such as MGSE integration stands. This Standard does not address magnetic, electrical or electrostatic cleanliness. This Standard does not address completely biocontamination aspects. However, references to relevant ECSS standards are provided. This standard may be tailored for the specific characteristic and constrains of a space project in conformance with ECSS-S-ST-00.