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ITU-T K.66 (12/2004)

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Protection of customer premises from overvoltages
This Recommendation:
• provides recommendations for bonding and earthing of telecommunication equipment in residential and commercial customer premises;
• refers to ITU-T Rec. K.21 for equipment resistibility requirements;
• recommends earthing and bonding requirements to coordinate with the resistibility requirements of ITU-T Rec. K.21 and the safety requirements of IEC 60950-1;
• recommends the installation practices for bonding of all services and the installation of SPDs;
• 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;
• recommends responsibilities for protection at customer premises;
• refers to draft IEC 62305-3 for protection against direct lightning.
Approval date: 2004-12-14
Provisional name:K.pcp
Approval process:AAP
Status: Superseded
Maintenance responsibility: ITU-T Study Group 5
Further details: Patent statement(s)
Development history
[10 related work items in progress]
Ed. ITU-T Recommendation Status Summary Table of Contents Download
2 K.66 (06/2011) In force
1 K.66 (12/2004) Superseded