All British coal mines are deemed to be flame lamp mines, in which case
any battery, whether it be in a camera or watch etc., is banned. The
only exception is if the battery is within a flame proof enclosure, i.e.
within a strong (and heavy) box with flame proof flanges on the opening
and with a flame proof certificate. This prevents any gas explosion
within the enclosure being transmitted to explosive gas on the outside.
Thus a watertight housing is not sufficient.
Barry Job.
-----Original Message-----
From: Keith Ramsey [mailto:[log in to unmask]]
Sent: 16 February 2004 13:17
To: [log in to unmask]
Subject: Re: Mining Photography
Thanks to everyone who replied to this. What I was really looking for
was a textbook of mining photography, with particular reference to coal
mines, but I guess that there's not much demand for that sort of thing
these days, at least in this country.
Following on from James's point about flameproof digicams, what are the
rules about using flash in a coal mine? I assume that it would be
totally forbidden, but what about cameras that need a battery to work
the shutter? Are only totally mechanical cameras allowed, or could
something with electrics be safely enclosed in a housing designed for
underwater photography?
Keith Ramsey
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