Work item:
|
K.66
|
Subject/title:
|
Protection of customer's premises from overvoltages
|
Status:
|
Approved on 2011-06-13 [Issued from previous study period]
|
Approval process:
|
AAP
|
Type of work item:
|
Recommendation
|
Version:
|
Rev.
|
Equivalent number:
|
-
|
Timing:
|
-
|
Liaison:
|
-
|
Supporting members:
|
-
|
Summary:
|
This Recommendation:
o provides recommendations for bonding and earthing of telecommunication equipment in residential and commercial customer premises;
o refers to [ITU-T K.21] for equipment resistibility requirements;
o recommends earthing and bonding requirements to coordinate with the resistibility requirements of [ITU-T K.21] and the safety requirements of [IEC 60950-1] and [IEC 62368].;
o recommends the installation practices for bonding of all services and the installation of SPDs;
o illustrates problems associated with earthing and bonding and provides solutions for these earthing and bonding problems. These include:
1) methods to improve the earthing and bonding;
2) methods of providing additional protection external to the equipment;
3) special resistibility and safety requirements;
o recommends responsibilities for protection at customer premises;
o refers to [IEC 62305-3] for protection against direct lightning.
This revision of K.66 includes an update of the references and a revision of section 6.3 to include more information on preventing equipment damage. Appendix IV, containing information on Special resistibility requirements has been deleted. The reader is directed to [ITU-T K.44].
|
Comment:
|
-
|
Reference(s):
|
|
|
Historic references:
|
Contact(s):
|
|
ITU-T A.5 justification(s): |
|
|
|
First registration in the WP:
2008-04-07 15:17:33
|
Last update:
2011-06-14 18:24:52
|