C. issuing the
Production Quality Assurance Notification, notified body confirms that the
requirements the ATEX Directive according Annexes and VII are met.
The following tests must verified the type examination serve basic
requirement for IEC application:
• Type testing according IEC 60947-7-1/-2/-3
• Verification and documentation clearance and creepage distances
• Ageing test:
• days storage and humidity
• Further days dry heat Level the value the insulating material
•
24 hours cold storage -65 (for PA66) with
subsequent conductor pull-out test
Depending the type protection, the terminal blocks are approved for increased
safety „eb“ „ec“ and thus for installation Zone Zone This applies provided
that the terminal blocks are installed terminal box.35
3029140000
Installation
C
Standards and industries
.eb
Issue type examination certificate
Notified bodies issue type examination certificates accordance with
EN IEC 60079-0; IEC 60079-7 and the ATEX Directive.) and certified the certificate..
The elementary points for terminal blocks are:
• Increased requirements for self-heating compared industry standard
• Compliance clearance and creepage distances (eb)
•
The terminal block must inserted protected such way that the connection
can neither become loose nor damaged inadmissibly the clamping point
The above points and the technical data are tested independent
testing institute (DEKRA, PTB, TÜV.
The installation instructions must taken into account the application.
Terminal boxes must also have the ignition protection type device protection
for increased safety and must least correspond protection type IP54..
Requirements for terminal blocks for type of
protection increased safety eb
The type protection Increased Safety “Ex eb“ (IEC/EN 60079-
7) based the principle more stringent design measures
