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In the Federal Republic of Germany, various national regulations for the

installation in explosive areas must be taken into consideration. The basis for this

forms the working reliability regulation, which is the national conversion of the

European guideline 99/92/E6. They are complemented by the installation

regulation EN 60079-14. The following are excerpts from additional VDE

regulations:

Table 74: VDE installation regulations in Germany

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

DIN VDE 0185 lightning protection systems

The USA and Canada have their own regulations. The following are excerpts

from these regulations:

Table 75: Installation regulations in USA and Canada

NFPA 70

ANSI/ISA-RP 12.6-1987 Recommended Practice

C22.1

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Notice the following points

When using the WAGO-I/O SYSTEM 750 (electrical operation) with Ex

approval, the following points are mandatory:

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11.2.1

Special Conditions for Safe Operation of the ATEX and IEC

Ex (acc. DEMKO 08 ATEX 142851X and IECEx PTB 07.0064)

The fieldbus-independent I/O modules of the WAGO-I/O-SYSTEM 750-.../...-...

must be installed in an environment with degree of pollution 2 or better. In the

final application, the I/O modules must be mounted in an enclosure with IP 54

degree of protection at a minimum with the following exceptions:

Description

Explosion protection group (condition of use

category)

Area of application

Explosion group (gas group)