Question 26/V - Directives concerning the protection of
telecommunication lines against harmful effects from electric power and
electrified railway lines (Continuation of Question 26/V, 1985-1988;
revised title and
wording)

The nine Volumes of the Directives (1988 edition) should be updated
whenever necessary. For this reason Contributions submitted to Study
Group V relevant to the contents and presentation of the Directives are
to be reviewed.

Considering that

- the Directives (1988 edition) differ significantly from the
former editions;

-inducing and induced installations are described in detail;

-new methods of estimating and calculating the results of capacitive,
inductive and conductive coupling have been inserted;

-more comprehensive information on protective measures and devices is
given.

Information dealing with observations based on practical experiences or
new results of studies should be submitted by the users of the
Directives.

1 Coordinated protection schemes for optical fibre cables are under
study.