Normy

Obsah

ČSN EN 2996-006 This document specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between -55 °C and 125 °C for ratings 15 A and at an altitude of 15 000 m max. These circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action "trip-free" tripping. They will continue to function up to the short-circuit current.

Obsah

ČSN EN 4708-204 This document specifies the required characteristics for heat-shrinkable limited fire hazard identification sleeves for use in aircraft electrical systems at operating temperatures between -40 °C and 105 °C. This document is only applicable for the characterization of identification sleeves. This sleeving is flexible, flame retarded and emits minimum smoke, gases and corrosive by-products when exposed to fire. This sleeving is only applicable for use in areas where smoke, gases or corrosive by-products would constitute a particular hazard. It is available with a shrink ratio of 2 : 1. The product is normally supplied with internal diameters up to 51 mm. The standard colours are white or yellow. Sizes or colours other than those specifically listed in this document can be available. These items are considered to comply with this document if they comply with the property requirements listed in Table 2 and Table 3, except for dimensions and mass. As the sleeving to be tested is a printed article, the complete system is to be recorded as part of the evaluation. The sleeve will only be considered as meeting the requirements of this document if printed with the printer, ribbon, inks and settings referenced within the test report. Mark adherence and print permanence are determined in this specification using method EN 6059-407.

Obsah

ČSN EN 4840-103 This document specifies the required characteristics for fluoroelastomeric, heat-shrinkable boots for use in aircraft electrical systems at operating temperatures between -55 °C and 200 °C. The moulded shapes can be supplied with a pre-coated adhesive. Refer to the manufacturers/suppliers for options. A guide to adhesive compatibility is given in Annex A. These moulded shapes are normally supplied in the styles and dimensions given in EN 4840-002. The colour is normally black. Styles and dimensions other than those specifically listed in EN 4840-002 can be available as custom items. These items are considered to comply with this document if they comply with the property requirements listed in Table 1 with the exception of dimensions.

Obsah

ČSN EN 3524 This document specifies the requirements relating to: Steel 15CrMoV6 (1.7334) Air melted Hardened and tempered Sheets and strips 2 mm

Obsah

ČSN EN 3526 This document specifies the requirements relating to: Steel 15CrMoV6 (1.7334) Air melted Hardened and tempered Sheets and strips 0,5 mm

Obsah

ČSN EN 3525 This document specifies the requirements relating to: Steel 15CrMoV6 (1.7334) Air melted Hardened and tempered Plates 6 mm

Obsah

ČSN EN 6095 This document specifies the required characteristics, inspections, tests, quality assurance requirements, conditions for qualification acceptance and delivery of rotary fasteners for structural and non-structural applications. This document is applicable to all rotary fasteners for structural and non-structural applications. It can be applied when referred to in the product standard or in a design specification.

Obsah

ČSN EN 4113 This document specifies the required characteristics of loop style clamps ("P" type) in corrosion resisting steel, passivated with various cushion materials. These clamps are used for supporting aerospace pipe assemblies and electrical cable bundles. For temperature range and environmental considerations see the various cushion material standards.

Obsah

ČSN EN 4114 This document specifies the required characteristics of loop style clamps ("P" type) in aluminium alloy with various cushion materials. These clamps are used for supporting aerospace pipe assemblies and electrical cable bundles. They are used up to 80 °C max. Usage at a higher temperature is at the option of the user. For temperature range and environmental considerations, see the various cushion material standards.

Obsah

ČSN EN 2516 This document specifies several chemical methods of passivation for corrosion resisting steels (austenitic, ferritic, martensitic and precipitation hardenable) and of decontamination for nickel or cobalt base alloys.

Obsah

ČSN EN IEC 60335-2-51 ed. 3 Tato norma se zabývá bezpečností elektrických pevně připojených oběhových čerpadel pro domácnost a podobné účely určených pro použití v systémech vytápění nebo rozvodech užitkové vody, jejichž jmenovité napětí nepřesahuje 250 V u jednofázových spotřebičů a 480 V u ostatních spotřebičů.

Obsah

ČSN ISO 5073 Dokument stanovuje metody odměrné analýzy pro stanovení celkových huminových kyselin a volných huminových kyselin v hnědých uhlích a lignitech.