148
• Application in Explosive Environments
Installation Regulations
WAGO-I/O-SYSTEM 750
DeviceNet
6.6 Installation Regulations
In the
Federal Republic of Germany,
various national regulations for the
installation in explosive areas must be taken into consideration. The basis
being the ElexV complemented by the installation regulation DIN VDE
0165/2.91. The following are excerpts from additional VDE regulations:
DIN VDE 0100
Installation in power plants with rated voltages up to
1000 V
DIN VDE 0101
Installation in power plants with rated voltages above
1 kV
DIN VDE 0800
Installation and operation in telecommunication plants
including information processing equipment
DIN VDE 0185
lightning protection systems
The
USA
and
Canada
have their own regulations. The following are ex-
cerpts from these regulations:
NFPA 70
National Electrical Code Art. 500 Hazardous Locations
ANSI/ISA-RP
12.6-1987
Recommended Practice
C22.1
Canadian Electrical Code
Danger
For the use of WAGO-I/O SYSTEM 750 (electrical operating means) with
Ex approval the observance of the following points is mandatory:
•
The electrical operating means are exclusively suitable for applications in
explosion endangered areas (Europe Group II, Zone 2 or America: Class
I, Division 2, Group A, B, C, D) or in non-explosion endangered areas!
•
Ensure that only approved modules of the electrical operating means will
be used. Replacement of components can jeopardize the suitability of the
system in explosion endangered zones!
•
Only disconnect and/or connect electrical operating means when the volt-
age supply is isolated or when a non-explosive atmosphere has been as-
certained!
•
Adhere to the specified data regarding voltage supply and fusing. (See
data on the fuse holder)!