TELECOM Digest OnLine - Sorted: Re: Gas Refrigerator (was 25 Hz Power)

Re: Gas Refrigerator (was 25 Hz Power)

T (
Fri, 17 Mar 2006 21:24:47 -0500

In article <>,

> T wrote:

>> Unfortunately for me I've never heard a live electromechanical
>> switch.

> Telephone switches have a distinctive sound. The clicks and clacks are
> very sharp and distinctive.

> While an ESS switch is silent (except for the noisy blowers), there
> may be some nearby support racks that do contain relays, and those
> relays will make the sharp clack sounds.

Actually the #1ESS wasn't completely electronic per se -- it used reed
relays to complete the calls.

But our Prologix does still make some clicking noises, but nowhere near
the decibel level of an old SxS I bet.

> As to the sound of emergency generators, they are noisy. I was
> passing a nursing home when they were testing their generator and it
> was loud!

> Places with critical functions likes hospitals and nursing homes have
> backup power generators. They are tested every so often. Sometimes
> power failures result from failure of the switchgear to transition
> from one source to another. One of my employer's location had a
> backup source and they did a test; they were out of commission the
> whole day due to failures of the control circuitry.

Yep. Our 125kW natural gas generator makes plenty of noise. And it
works flawlessly too.

Post Followup Article Use your browser's quoting feature to quote article into reply
Go to Next message: DLR: "Re: Gas Refrigerator (was 25 Hz Power)"
Go to Previous message: John Stahl: "In NY, ILEC Wireline Rates May Go Up Due to Competition!"
May be in reply to: Dave Grebe: "Gas Refrigerator (was 25 Hz Power)"
Next in thread: DLR: "Re: Gas Refrigerator (was 25 Hz Power)"
TELECOM Digest: Home Page