100
Requirements
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The cubicle’s design shall take into account all the electrical and environmental de-
mands arising from the location of the cubicle.
The cubicle should be designed according to the international standard publication
IEC 439-1 and to other IEC publications referring to this standard.
The degree of ingression protection provided by the cubicle should correspond to those
in IEC 60 529.
The earthquake protection of the cubicle should follow the standard, IEEE 693 draft 5.
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The IEC 60 529 describes standard degrees of protection provided by enclosures
(IP code) that a product is designed to provide when properly installed.
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The explanation of the Alpha-numeric IP code system can be illustrated as shown in
figure 46
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where:
2
Protected against ingress of solid objects greater than 12 mm in diameter
1
Protected against ingress of dripping water
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IP
2
1
Identification letter
First identification number
Second identification number
Summary of Contents for 500 Series
Page 6: ... RQWHQWV ...
Page 32: ...26 Mounting methods and mounting details KDSWHU 7HUPLQDO GLPHQVLRQV DQG PRXQWLQJ DOWHUQDWLYHV ...
Page 46: ...40 Test switch modules for RED 521 KDSWHU 7HUPLQDOV ZLWK D WHVW VZLWFK PRGXOH ...
Page 72: ...66 Making the electrical connections KDSWHU OHFWULFDO FRQQHFWLRQV ...
