1.1 This European Standard specifies the requirements for stationary electrostatic application
equipment for ignitable coating powders to be used in explosive atmospheres generated by their own
spray cloud. A distinction is made between spraying systems corresponding to EN 50050:2001 and
spraying systems designed for higher discharge energies and/or currents. The charging of ignitable
coating powder can be achieved by applying high voltage or triboelectrically.
This European Standard also specifies the design-related requirements for a safe operation of the
stationary equipment including its electrical installation.
1.2 This European Standard considers three types of electrostatic spraying systems; see 5.1 for
more details.
1.3 This European Standard deals with all hazards significant for the electrostatic spraying of
coating materials, which could also contain small quantities of added metal particles, if the work is
carried out under conditions recommended by the manufacturer. In particular, this includes ignition
hazards resulting from the generated explosive atmosphere, and the protection of persons from
electric shocks.
1.4 This stationary equipment is classified as equipment of group II, category 2D or category 3D
for use in potentially explosive areas of zone 21 or 22, respectively.
NOTE For other safety aspects like
– zone classification of the areas in and around spray booths, see EN 12981:2005, 5.6.2.3;
– zone classification of other areas with explosive atmosphere, see EN 60079-10-2;
– selection, erection and application of other electrical and non electrical equipment in areas with explosion hazard, see
EN 60079-14 and EN 12981:2005, 5.6.2.4;
– health protection (for instance, noise) see also EN 12981:2005, 5.4 and EN 14462;
– cleaning of spraying areas, see instruction manual of the spraying equipment;
– fire prevention and protection (for instance fire hazards due to other sources) see also EN 12981:2005, 5.6;
– explosion protection system, see EN 12981:2005, 5.6.2.5;
– dust hazards, see EN 12981:2005, 5.5.
Design-related measures for reducing the generation of noise of the stationary equipment for electrostatic coating are given in
EN ISO 11688-1. See also EN 14462.
BS EN 50177:2009 history
2011BS EN 50177:2009+A1:2012 Stationary electrostatic application equipment for ignitable coating powders. Safety requirements
2011BS EN 50177:2009 Stationary electrostatic application equipment for ignitable coating powders. Safety requirements
2007BS EN 50177:2006 Automatic electrostatic spraying equipment for flammable coating powder