标准号:BS 7822-2-1-1999
中文标准名称:低压系统内部设备的绝缘配合.应用指南.尺寸确定程序工作单和尺寸确定实例
英文标准名称:Insulation coordination for equipment within low-voltage systems - Application guide - Dimensioning procedure worksheets and dimensioning examples
标准类型:K30
发布日期:1999/2/15 12:00:00
实施日期:1999/2/15 12:00:00
中国标准分类号:K30
国际标准分类号:29.080.01;29.080.30
适用范围: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.