Distribution cables with extruded insulation for rated voltages
HD 620 applies to cables with extruded insulation and for rated voltages Uo/U(Um) from 3,6/6 (7,2) kV up to
20,8/36(42) kV used in power distribution systems of voltages not exceeding the maximum r.m.s. value of
the system voltage Um.
This Part (Part 1) specifies the general requirements applicable to these cables, unless otherwise specified
in the particular sections of this HD.
Test methods specified are given EN 60228, EN 60229, EN 60332-1-2, EN 60811, EN 60885-3, HD 605 and
HD 632.
Attention should be drawn to the fact that a significant number of sections include references to long term
tests which are collected in HD 605. These long-term tests are considered as necessary and reflect the best
available knowledge for the existing cable design. They are related to specific designs and different
philosophies concerning adequate measures against the influence of water. However it is the firm intention
to reduce this large number of different tests, but more experience should be gained before starting to
rationalise this important matter.
The particular types of cables are specified in Parts 9 to 11.
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ:
CYS HD 620 S2:2010
HD 620 applies to cables with extruded insulation and for rated voltages Uo/U(Um) from 3,6/6 (7,2) kV up to
20,8/36(42) kV used in power distribution systems of voltages not exceeding the maximum r.m.s. value of
the system voltage Um.
This Part (Part 1) specifies the general requirements applicable to these cables, unless otherwise specified
in the particular sections of this HD.
Test methods specified are given EN 60228, EN 60229, EN 60332-1-2, EN 60811, EN 60885-3, HD 605 and
HD 632.
Attention should be drawn to the fact that a significant number of sections include references to long term
tests which are collected in HD 605. These long-term tests are considered as necessary and reflect the best
available knowledge for the existing cable design. They are related to specific designs and different
philosophies concerning adequate measures against the influence of water. However it is the firm intention
to reduce this large number of different tests, but more experience should be gained before starting to
rationalise this important matter.
The particular types of cables are specified in Parts 9 to 11.
