Assembly standards - Schneider Electric
Assembly standards - Schneider Electric
Assembly standards - Schneider Electric
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Low Voltage Systems Newsletter<br />
Clarified & Reinforced Requirements:<br />
Strength of materials and parts<br />
• Following tests are compulsory<br />
This looks at the suitability of plastic and metal parts to prove the long term capabilities<br />
of the equipment.<br />
• Resistance to corrosion<br />
• Properties of insulating materials<br />
• Thermal stability<br />
• Resistance of insulating materials to normal heat<br />
• Resistance to abnormal heat and fire due to internal electric effects<br />
• Resistance to ultra-violet (UV) radiation<br />
• Lifting<br />
• Mechanical impact (IK)<br />
• Marking<br />
• Current carrying<br />
• All the tests (also short circuit) have to be made with the devices inside the assembly<br />
• No more possibility to make a temperature rise with a heating resistance<br />
• No device substitution<br />
• The tests have to be made<br />
• for each circuit alone to its rated current<br />
• and the complete assembly (including diversity factor)<br />
• The verification by calculation is limited<br />
• maximum 1600A and all components de-rated to 80%<br />
www.eastmed.schneider-electric.com<br />
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