[TechAssist] Re: Need advice from engineering folks.
- From: "Damon" <damon101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 5 May 2004 07:44:40 -0500
Not an expert, but take your needs (fuse or watt ratings) and double it....
Then if it sounds rediculous, drop down to a 200 amp service.. and if the
college is smart, they will dedicate the lighting to it's own service....
Damon Brunger
----- Original Message -----
From: "walter wood" <wwood_38478@xxxxxxxxx>
To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, May 04, 2004 9:54 PM
Subject: [TechAssist] Need advice from engineering folks.
| Watts divided volts equal amps.
| 100 watts divided by 100 volts = 1 amp.
| That's the way a broadcast engineer told me to
| remember Ohms Law 40 years ago.
| Now the reason for the question;
| I have provided the main outdoor sound system,
| gratis, for the last 3 years, for the Relay for
| Life charity.
| The local college provides the lights, and the
| electric company puts a tempoary service at the
| location.
| We've never had enough electricity.
| Thet are offering to put a permanent service there,
| and want to know how much IS enough.
| I measured the current through a 100 watt light
| bulb, on normal line voltage and read 0.82 amps.
| That's about right as the voltage was up from the
| example, therefore the amperage goes down.
| I measured a 60 watt bulb and got 0.5, exactly what
| it should be.
| I then measured a Peavey Session 400 amp, and it
| read 0.44 amps at idle, but it didn't take much
| volume to raise the draw to 1 amp.
| The back plate on this amp states 600 watts and 120
| volts.
| It is fused at 6 amps.
| Following the formula, it should pull 5 amps "maxed
| out".
| I know that's a lot of e-mail, but the question can
| be answered yes or know.
| "Will I be safe in requiring the amperage of all
| the amps and effects, etc. to equal the total of
| their fused ratings."
| I would think that would be more than adaquite, but
| I'm asking for the expert advice.
| I intend to ask for much more because we see the
| need getting larger in the future, and anyway, it's
| impossible to know what kind of equipment everyone
| will show up with.
| The college already knows the requirments for the
| lights.
| TIA
| Water
|
|
|
| =====
| Walter Wood
| Future Tech Home Center
| 2786 Hwy. 43 N.
| Lawrenceburg Tn. 38464
| 931-829-3337
| Fax 931-829-4044
| mailto:wwood_38478@xxxxxxxxx
|
|
|
|
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