PD 6499:1981

Заменен

Guide to insulation co-ordination within low-voltage systems including clearances and creepage distances for equipment — 80 стр.

Заменен на

BS 7822-1:1995

ICS

29.080.10 Insulators. Including fittings and other components for insulators / Изоляторы. Включая арматуру и другие компоненты для изоляторов