Insulation coordination for equipment within low-voltage systems – Part 2-1: Application guide – Dimensioning procedure worksheets and dimensioning examples
|Publication Date:||1 November 1997|
|ICS Code (Insulation systems):||29.080.30|
|ICS Code (Insulation):||29.080|
This technical report is intended as a guide for technical committees specifying dimensioning requirements for products in accordance with IEC 60664-1.
The significant items for consideration are as follows:
a) nominal system voltage(s) or rated insulation voltage(s);
b) overvoltage category of the products;
c) pollution degree.
A diagram for dimensioning of clearances and creepage distances for low-voltage equipment (up to 2 000 m) is shown in figure 1.
All references given below are to IEC 60664-1.