1.7.3 Working Environment
Hazardous Zone
Warning
POTENTIAL ELECTROSTATIC CHARGING HAZARD
Avoid the generation of static electricity. Electrostatic charge/discharge of the device
from/to a person or a tool could ignite a surrounding hazardous atmosphere.
Safe Zone
Warning
Make sure that no explosive gas mixtures build up in the working area.
1.7.4 Required Skills
Warning
The technician must have technical skills to be able to safely install the equipment. The
technician also must be trained to work in accordance with the national requirements for
electrical equipment in hazardous areas.
1.8 Electrical
1.8.1 Commissioning and Maintenance
• The entire installation procedure must be carried out in accordance with national,
local, and company regulations. The entire electrical installation shall be carried out
in accordance with the national requirements for electrical equipment to be installed
in hazardous areas.
• All wiring entries must be closed using the correct thread type such that the approvals
are not invalidated. For installations using cable glands, use Ex d compound barrier
glands. For installations using conduits, each conduit must be sealed within 18 inches
of the enclosure.
• Improper installation of cable glands, conduits or stopping plugs invalidates the Ex
approval of this device.
• Make sure that the housing of the device is properly bonded to the Protective Earth
(PE).
• The temperature of the device’s coupling due to local heat sources (e.g. contents of
a tank or power dissipation) may not exceed a temperature of 80
◦
[C].
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