Re: Capacitor

To: tesla-at-pupman-dot-com
Subject: Re: Capacitor
From: PAUL MILLOTT <paulmil-at-ibm-dot-net>
Date: Sat, 6 Jul 1996 04:07:55 GMT

Safety check on a new capacitor.

I just received a new capacitor and I am not sure if it is safe to use it.
It has an air bubble inside which seems quite large. I realise it may be
there as an expansion space for the oil but it seems very big.

If I do use it, do I stand it on end to move the bubble to the top or use it
on its side where the bubble is elongated but much thinner and away from the
ends of the conductive metal foil?

The cap is marked NSG 502-10K .005MFD  10000 V.Pulse The Cond.Prod.corp.
11999305. It is in a glass case about 6 inches long with metal alloy ends.
The inside cap itself is blue and the air bubble is 2 inch long by 3/4 inch
wide at its centre when the cap is lying on its side. The bubble is between
the glass and the cap material inside but it is difficult to judge how deep
the space is between the plastic and the glass 

Because it is quite a thick glass case I think it would cause quite a blast
if it were to explode. I am putting it inside a piece of pvc drain pipe but
will not switch it on until someone tells me it is safe. That way I can
blame you if it goes bang! Just joking. I would apreciate confirmation that
the bubble is just a safety expansion space.

Thanks.

Paul Millott  (Failed again)