Question 16/V - Levels of voltages and currents related to disturbances
from power and traction installations
(Continuation of Question 16/V, 1985-1988; revised wording)

It is necessary to:

-study the amplitude, waveshape, spectral content, duration, conditions
and rate of occurrence of voltages and currents induced or impressed on
telecommunications installations from power and traction installations,
which may cause danger or impairment to the operation of the
telecommunications installations;

-determine if any new or more detailed guidelines for dealing with such
voltages or currents should be established.

Note 1 - The study should be carried out with the cooperation of CIGRE
and UIC.

Note 2 - (This note is not limitative.)

As regards the dangers: the Question should preferably be confined to
the dangers to persons, the danger of damage to equipment being
considered in connection with other Questions: 5/V and 21/V.

Contributions COM V-81, COM V-101, COM V-102 and COM V-R 9 (1985-1988)
should be considered for the study.

It would also be advisable to obtain the views of appropriate organs of
the IEC and of medical authorities, whose collaboration the CCITT should
seek to enlist, as far as possible at the international level.

As regards noise induced in telecommunication circuits: reference should
be made to the G and Q-Series Recommendations.

The view of the Study Groups concerned with telecommunication quality
(XII, XVII) will be sought on any proposals Study Group V may propose to
adopt.