Date: Wed, 11 Nov 2009 15:31:27 -0600
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Long, Don" <don.long**At_Symbol_Here**WGINT.COM>
Subject: Re: Hood Sash Cables
In-Reply-To: A
Another suggestion - please don't use your bare fingers when
running it
along the cable. Wear leather gloves (or equivalent) - you'll still feel
the
broken/frayed wire but just without the blood that may accompany
the
discovery.
Don A.
Long
STS,
CAIH
Southwest
Research Institute Laboratory
Pine Bluff Chemical Agent Disposal
Facility
PO Box
20130
White Hall, AR
71612
870-541-4930
It
would be a good
idea to check with your hood manufacturer. Depending on the age, most
hoods
made in the last 10-15 years (sometimes older) were designed with
braking or
fail-safe mechanisms that will prevent the "guillotine-effect" in the
event of
a cable break. The manufacturer should be able to tell you if your
hoods have
this safety feature.
Also, I have
seen that when the pulleys are made of plastic (e.g. nylon, etc.) they
can
grip the cable and cause it to unwind and rewind as it passes over the
pulley,
which speeds up wear. It may be a good idea to consider replacing
plastic
pulleys with steel pulleys.
Stan
Lengerich
Eli Lilly and
Company
RJ Wolcik
<rj**At_Symbol_Here**STREM.COM>
Sent
by: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**list.uvm.edu>
11/11/2009 01:25 PM
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Subject
| [DCHAS-L] Hood Sash
Cables |
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We are looking for some ideas on hood sash
cables:
We
inspect all our hood sash cables quarterly by a visually inspecting
the cable
and running a finger along the cable to feel for any bumps or frayed
wire.
We use 3/32” stainless steel “aircraft grade”
cables with a rating of
900 pounds. We have found wire that has frayed in the middle of
the
twist and it is not visible without a magnifying glass, and if it were
to give
away while someone was in the hood, we would have a serious injury.
We
are thinking about instituting a change schedule for all the cables.
Does
anyone have any ideas or comments?
Does anyone
have any
information on cable breakage, or has anyone heard of an incident of
both sash
cables breaking at the same time causing the sash to completely fall?
Does anyone have a policy they would be willing to
share?
---------------------------------------------------
R.J. Wolcik
Environmental Health and Safety
Strem Chemicals, Inc.
7
Mulliken Way, Dexter Industrial Park
Newburyport, MA 01950-4098, U.S.A.
Telephone: 978.499.1660
Fax:
978.499.1661
Email: rj**At_Symbol_Here**strem.com
www.strem.com
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