Insulators for overhead lines. Insulator strings and sets for lines with a nominal voltage greater than 1000 V. AC power arc testsBS EN 61467: 2008 Insulators for overhead lines. Insulator strings and sets for lines with a nominal voltage greater than 1000 V. AC power arc tests BS EN 61467 applies to insulator strings and sets comprising string insulator units of ceramic material, glass or composite material for use on a. c. overhead lines and traction lines with a nominal voltage above 1 000 V and a frequency between 15 Hz and 100 Hz. BS EN 61467 also applies to insulator

This document applies to bituminous mixtures (both those made up in laboratory and those resulting from work site sampling)

but it is based on and follows the format of ISO 9001

Amendment A1 introduces the following principal changes:

where either it is known that soil contamination is present

as well as specifying requirements that establish the performance of the device under conditions intended to mimic normal clinical use

extended explanations of data sources and categories of data

and recognizing such competent organizations by internal and externally recognized auditing bodies

Identifies the key stages of process isolation

the procedures in this part of ISO 2859 are not applicable to acceptance assessment of lots

Procedure for use of an electronic portable combustion gas analyser to determine whether or not the combustion performance is satisfactory

and safety design features are part of ethical design

or in any way change