Hivatkozási szám

MSZ EN 14986:2017

Dokumentumazonosító

165179

Cím

Potenciálisan robbanóképes közegekben működő ventilátorok kialakítása

Angol cím

Design of fans working in potentially explosive atmospheres

Alkalmazási terület

1.1 This European Standard specifies the constructional requirements for fans constructed to Group II G (of explosion groups IIA, IIB and hydrogen) categories 1, 2 and 3, and Group II D categories 2 and 3, intended for use in explosive atmospheres. NOTE 1 Operation conditions for the different categories of fans used in this European Standard are defined in Clause 4. NOTE 2 Technical requirements for category 1 D fans are not given in this document. Where explosive dust atmospheres are regularly conveyed, explosion protection measures as described in EN 1127–1 are required if this specific us is needed. 1.2 This European Standard does not apply to group I fans (fans for mining), cooling fans or impellers on rotating electrical machines, cooling fans or impellers on internal combustion engines. NOTE 1 Requirements for group I fans are given in EN 1710. NOTE 2 The requirements for electrical parts are covered by references to electrical equipment standards. 1.3 This European Standard specifies requirements for design, construction, testing and marking of complete fan units intended for use in potentially explosive atmospheres in air containing gas, vapour, mist and/or dusts. Such atmospheres may exist inside (the conveyed atmosphere (flammable or not)), outside, or inside and outside of the fan. 1.4 This European Standard is applicable to fans working in ambient atmospheres and with normal atmospheric conditions at the inlet, having — absolute pressures ranging from 0,8 bar to 1,1 bar, — and temperatures ranging from -20 °C to +60 °C, — and maximum volume fraction of 21 % oxygen content, — and an aerodynamic energy increase of less than 25 kJ/kg. NOTE 1 25 kJ/kg is equivalent to 30 kPa at inlet density of 1,2 kg/m3. This European Standard may also be helpful for the design, construction, testing and marking of fans intended for use in atmospheres outside the validity range stated above or in cases where other material pairings need to be used. In this case, the ignition risk assessment, ignition protection provided, additional testing (if necessary), manufacturer's marking, technical documentation and instructions to the user, should clearly demonstrate and indicate the equipment's suitability for the conditions the fan may encounter. This European Standard should not apply to integral fans as a part of Diesel engines, vehicles or electric motors. NOTE 2 Where undated references are used in the body of the standard the latest edition applies.

ICS

23.120 Ventilátorok. Szellőzők. Légkondicionálók

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2017-05-01

A visszavonás napja

2024-09-01

Forrás

idt EN 14986:2017

Előd

MSZ EN 14986:2007

Utód

MSZ EN 14986:2024

Módosítás

Kiegészítő információk

SZK-közlemények

Kapcsolódó európai jogszabály

2014/34/EU (ATEX14); 94/9/EK; (ATEX94)

A szabvány

kapható formátuma

Papír ,
PDF (letöltés) (a fájl mérete: 1076318) ,

oldalszáma

53 oldal; U kategória

ára

Nettó: 17420 Ft
Bruttó:
Papír formátum esetén (5% Áfával): 21949 Ft
PDF (letöltés) formátum esetén (27% Áfával): 22123 Ft