mjamm1

Establish a good ground system following the recommendations in the Planning and Engineering NTP's

jemel

May i ask what could possibly be the standard rating of the grounding system?
Is it advisable to have a separate grounding for telecommunications and network equipments?
Thanks!

pbxn

Your best bet is to contact your vendor and have them do a power/ground audit. Buildings change, and sometimes so do your ground protections. Better to err on the side of caution than to find out after a storm because of bad or improper grounding you lost 3 shelves in your switch.

jemel

Actually we've been hit by storms and power fluctuations,and damaged our new PABX kinda frustrating.
Anyway Thanks alot!

mjamm1

Do you have your switch on a large UPS? They will condition alot of the fluctuations, but as Pbxn stated, your vendor should be able to assist, or you may even request another vendor to evaluate what you have since you had issues already from the installing vendor.

mjamm1

Communication Server 1000M and
Meridian 1
Large System Planning and Engineering
Document Number: 553-3021-120

gei_spot

basic grounding law applies here. .01 ohms to the frame..

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Sonny Ibibo

A common ground (power/ equipment) for all, is adviced.
A trusted power backup system.
A good earth leakage/breaker b4 the backup system.
Lighten protections on Trunk lines via cu conductors.

Peace of mind quarrateed!

jemel

thanks!
i would probably implement the one you call cu conductors.
my concern is that we have a delta config grounding system an online ups but our cards still went crazy, 1 of our cards eventually was totally damaged after 2 days of the initial breakdown. i was kinda frustrated for this equipment is just about 4 months old.