Zone 2 Hazardous Area Definition - GE Druck ADTS 405 User Manual

6 - 42

Zone 2 Hazardous Area Definition

Defined as an atmosphere where explosive vapours may be present in an air
breathable atmosphere.
O ATEX
NLY USE
RISKS AN EXPLOSION
In an aircraft hangar, explosive vapour may be present around an aircraft. The
amount of explosive vapour varies and depends on local conditions such as hangar
ventilation, prevailing metrological conditions and the density of explosive vapours.
The local conditions must be assessed and the dimensions (x metre) of the hazardous
area defined by the local engineering and safety officials.
T
HE POWER SUPPLIES MUST BE ISOLATED WHEN CONNECTING ELECTRICAL EQUIPMENT IN THE
HAZARDOUS AREA
D
O NOT DISCONNECT
WHEN ENERGIZED IN THE HAZARDOUS AREA
x metre
x metre
K114 Issue No. 9
CERTIFIED EQUIPMENT IN THIS DEFINED AREA
.
.
ATEX
CERTIFIED ELECTRICAL EQUIPMENT SUCH AS THE
Reference and Specification
. U
.
x metre
-
SING NON CERTIFIED EQUIPMENT
ADTS
HAND TERMINAL
x metre
x metre