UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ITU-T K.35

Bonding configurations and earthing at remote electronic sites

active, Most Current
Buy Now
Organization: ITU-T
Publication Date: 1 December 2020
Status: active
Page Count: 22
scope:

This Recommendation covers bonding configurations and earthing for equipment located at remote electronic sites such as switching or transmission huts, cabinets or controlled environmental vaults with only one level, a need for a.c. mains power service and a floor space of about 100 m2 without an antenna tower on the roof of the building as well as nearby; but which are more substantial than small electronic housings, such as carrier repeaters or distribution terminals. Experience in the operation of electronic equipment enclosures shows that the use of a bonding configuration and earthing that are coordinated with equipment capability and with electrical protection devices has the following attributes:

- promotes personnel safety and reduces fire hazards;

- enables signalling with earth return (functional earthing);

- minimizes service interruptions and equipment damage caused by lightning, exposures to power lines and faults in internal d.c. power supplies;

- minimizes radiated and conducted emissions and susceptibility;

- improves system tolerance to discharge of electrostatic energy.

Within this framework, this Recommendation:

a) is a guide to bonding configurations and earthing of telecommunication equipment in electronic equipment enclosures;

b) is intended to comply with safety requirements imposed by [IEC 60364 series] or national standardizing bodies on a.c. power installations;

c) is intended for installation of new electronic equipment enclosures;

d) treats coordination with electrical protection devices, but does not provide details of protective measures specific to electronic equipment enclosures;

e) utilizes the shielding contribution of effective elements of the structure and its contents;

f) addresses the bonding of cable shields;

g) is intended to facilitate electromagnetic compatibility of telecommunication equipment;

h) does not include protection against lightning electromagnetic pulses (LEMPs).

Document History

ITU-T K.35
December 1, 2020
Bonding configurations and earthing at remote electronic sites
This Recommendation covers bonding configurations and earthing for equipment located at remote electronic sites such as switching or transmission huts, cabinets or controlled environmental vaults...
January 1, 2018
Bonding configurations and earthing at remote electronic sites
This Recommendation covers bonding configurations and earthing for equipment located at remote electronic sites such as switching or transmission huts, cabinets or controlled environmental vaults...
May 1, 1996
Bonding Configurations and Earthing at Remote Electronic Sites - Protection Against Interference
A description is not available for this item.

References

Advertisement