Explosion prevention measures.
EN 1127-1 Describes explosive atmospheres
EN 60079 Explosion protection electrical equipment
EN 13643 Explosion protection mechanical equipment
- Basic method and requirements EN 13463-1
- fr Flow restricting enclosure EN 13463-2
( categorie 3 equipment only) - d Flameproof enclosure EN 13643-3
- c Constructional safety EN 13463-5
- b Control of ignition sources EN 13463-6
- p Pressurization EN 13463-7
- k Liquid immersion EN 13463-8
NPR 7910 (dutch Practical Guideline) Interpretes the standards EN 60079 10 -1 & 2
Ignitability according to EN 1127-1
Nr. | Description | Cause | Measures | NPR 7910-2, appendix D.3 |
1 | Hot surfaces | Possible | Procedure | D.3.2 |
2 | Flames and hot gasses (incl. glowing particled) | Possible | Procedure | D.3.3 |
3 | Mechanically caused sparks | Possible | Non-sparking constructions | D.3.4 |
4 | Electrical equipment | Possible | Design | |
5 | Drifting currents & cathodic protection | Possible | Procedure | D.3.5 |
6 | Static electricity | Possible | Design | D.3.6 |
7 | Lightning | Outdoors | Cage of Faraday | D.3.5 |
8 | Radio frequent interference 104Hz < f< 1011Hz | Seldom | EMC directive | Not considered in the NPR 7910 |
9 | Electromagnetic waves3 x 1011Hz till 1015Hz | Seldom | EMC directive | |
10 | Ionising radiation | Seldom | Design | |
11 | Ultrasonic noise | Seldom | Design | |
12 | Adiabatic compression and shock waves | Possible | Design | |
13 | Exothermic reactions, incl. self ignition of dust. | Possible | Design | D.3.7 |