[abstract] DANGER LEVELS OF 5 SECOND ELECTRICAL SHOCKS FROM A 50 Hz SUPPLY AT 6 ATM. ABSOLUTE AND DURING DECOMPRESSION.

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[abstract] DANGER LEVELS OF 5 SECOND ELECTRICAL SHOCKS FROM A 50 Hz SUPPLY AT 6 ATM. ABSOLUTE AND DURING DECOMPRESSION.

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Title: [abstract] DANGER LEVELS OF 5 SECOND ELECTRICAL SHOCKS FROM A 50 Hz SUPPLY AT 6 ATM. ABSOLUTE AND DURING DECOMPRESSION.
Author: Green, HL; Ross, JAS; Luff, NP
Abstract: Ventricular fibrillation (V.F.) induced by accidental contact with electrical power sources can be a risk to divers in the increasingly complex underwater environment. The danger levels of electrical shock for power frequencies of 50 - 60 Hz are well documented for normobaric but not hyperbaric conditions. The minimum current required to produce V.F. in beagle dogs in response to 5 sec 50 Hz shocks applied between one forelimb and one hindlimb has been defined. Experiments have been performed at 1 atm. abs., 6 atm. abs. and during decompression. The animals were lightly anaesthetised with ketamine and pentobarbitone after a fluanisone, droperidol and atropine premedication. They breathed spontaneously, through an endotracheal tube, 34% oxygen at 1 atm. abs. and air at greater pressures. E.C.G., arterial pressure, respiration, blood gases and serum electrolytes were monitored during the experiments. V.F. thresholds were not found to change substantially (less than 10%) under compressed air at 6 atm. abs., nor did they change during decompression, or on return to 1 atm. abs. Preliminary experiments in helium and oxygen to 31 atm. abs. also indicate no change.
Description: Abstract of the Undersea and Hyperbaric Medical Society, Inc. Annual Scientific Meeting held June 1-5,1982 in Norfolk, Virginia (http:www.uhms.org).
URI: http://archive.rubicon-foundation.org/7379
Date: 1982

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  • UHMS Meeting Abstracts
    This is a collection of the published abstracts from the Undersea and Hyperbaric Medical Society (UHMS) annual meetings.

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