Issikka l-piżijiet tiegħek

Robert N Rossier
Robert N Rossier

Thirteen per cent of divers have lost weights; 9% have lost the whole belt. So what’s going wrong and what can be done about it? asks Robert N Rossier.

IS-SORPRIŻI JISTGĦU JKUN MULTI FL-GĦELJIET u okkażjonijiet speċjali oħra, iżda meta niġu għall-għadis, ħafna minna jippreferu li jillimitaw il-fattur sorpriża.

Waħda mill-aktar sorpriżi mhux mixtieqa fl-għadis hija bidla f'daqqa fil-wiċċ f'wiċċ l-ilma, jew li ma jkollokx il-kapaċità li tagħmel bidla bħal din meta jkun meħtieġ.

Minkejja s-sempliċità relattiva tas-sistemi tal-piż, l-għaddasa xi drabi jsofru sorpriżi kkaġunati mis-sistema tal-piż, u l-konsegwenzi jistgħu jkunu aktar minn trivjali.

Ikkunsidra l- każ ta’ għalliem u żewġ studenti li niżlu minn shotline biex jogħdos relitt fl-2006. Meta laħqu 7m aġġustaw it-tagħmir tagħhom, imbagħad komplew niżlu sa 19m.

As the BSAC Incident Report reads: “At this point, one of the trainees lost her weight-belt and began to make a buoyant ascent. The għalliem took hold of the trainee and made himself negatively buoyant. They then made their way along the wreck back to the shotline.”

Fortunatament, il- għalliem and trainee were able to make a controlled ascent up the line, and were recovered to the boat uninjured. Thanks to the għalliem’s quick response, the situation was remedied.

F'Diċembru 2005, tliet għaddasa kienu għamlu adsa sa 36m u, b'sitt minuti ta' ħin deco meħtieġa, wieħed kien skjera SMB mdewma u beda tlugħ.

According to the BSAC report, “one of the divers’ weights fell out of its pouch, and despite finning downwards to slow his ascent, he was carried rapidly to the surface.”

L-għaddas ġie rkuprat fuq id-dgħajsa, daħħal l-ossiġnu, u ngħata fluwidi. Fortunatament, ma ġew irrappurtati l-ebda problemi jew azzjonijiet oħra.

Forsi aktar tkessiħ hija s-sitwazzjoni li żviluppat għal żewġ bugħaddasa f'għaddasa fuq ix-xatt f'Settembru li għadda. Xi 60 minuta wara l-għaddasa, wieħed skopra li l-BC tagħha kien qed jarmi l-arja, u ma kinitx aktar kapaċi tmexxi l-wiċċ f’wiċċ l-ilma tagħha.

“She tried to remove her weightbelt, but it became entangled around her wrist,” stated the BSAC report.

Għadha ma setgħetx tirrilaxxa l-piżijiet tagħha, it-tnejn laħqu l-wiċċ f’6m ilma u sejħu għall-għajnuna. Imbagħad irnexxielhom jimxu f’ilma baxx, fejn it-tnejn irnexxielhom ineħħu l-użin tagħhom, u dgħajsa tas-sajd lokali għenithom jinżlu x-xatt.

It was thought that the diver’s BC valve was faulty or jammed. Neither diver suffered any injuries.

But weightbelt problems can be fatal.

In a case reported in DAN’s Report on Decompression Illness, Diving Fatalities and Project Dive Exploration in 2004, a 50-year-old divemaster was diving a wreck with two buddies at 37m when something went horribly wrong.

The three had started their ascent, but became separated on the way up. The diver’s korp ġie rkuprat minn grupp ieħor ta’ għaddasa xi 10 xhur wara.

According to the report: “The body was entangled in the wreck, and the deceased had removed his weightbelt, but it had become entangled in his catch-bag.”

Ir-rapport jinnota li l-għaddas kien obeż b'mod morboż, iżda ma jindikax jekk dan setax kien fattur fl-inċident fatali.

Dawn ir-rapporti jfakkruna fl-importanza ta 'sistemi ta' piż affidabbli.

To learn more about them, and the difficulties that divers encounter, Scuba STAR Network conducted an fuq l-internet safety survey. Nearly 300 divers responded.

Staqsejna dwar id-drawwiet tal-għadis – inklużi l-manutenzjoni u l-kontrolli tas-sigurtà ta’ qabel l-għaddasa – kif ukoll diżavventuri b’sistemi tal-piż.

Ir-riżultati tal-istħarriġ qalulna ftit affarijiet li diġà konna nafu, iżda kellhom ftit sorpriżi wkoll.

L-EBDA TAGĦMIR STANDARD

Gone are the days when every diver wore a conventional weightbelt – a nylon web belt with a quick release designed to ditch the lead should immediate buoyancy be required.

Kwart biss ta 'dawk mistħarrġa jużaw ċinturin ta' stil konvenzjonali, u terz minn dawn jużaw ċinturini tal-but aktar milli d-disinn standard antik taċ-ċomb fuq il-web.

Sebgħin fil-mija tal-għaddasa issa jużaw BCs integrati fil-piż, b'qasma kważi ugwali bejn dawk b'rilaxxi ta' piż wieħed u dawk b'rilaxxi multipli.

Madwar 4% mistħarrġa jużaw ċineg tal-piż, li jqassmu l-piż bl-istrixxi fuq it-torso, u jinkorporaw mekkaniżmu ta 'rilaxx tal-piż simili għad-disinn BC integrat fil-piż.

GĦADS MAĦXEL

Waħda mill-aktar sitwazzjonijiet perikolużi tqum meta bugħaddas ikun f'daqqa u bla ma jrid jinfetaħ mill-piżijiet tiegħu.

Sadly, this happens to one in four divers, with the clear majority of cases occurring beneath the surface.
Filwaqt li ħafna għaddasa jsolvu sitwazzjoni bħal din mingħajr inċident, oħrajn huma inqas ixxurtjati.

Skont l-istħarriġ, bejn wieħed u ieħor 20% tal-għaddasa li jsofru l-indignità ta’ piż jew ċinturin mitluf taħt l-ilma jispiċċaw jagħmlu tlugħ mhux skedat u dirett lejn il-wiċċ.

Attendant f'sitwazzjoni bħal din huwa r-riskju ta 'mard ta' dekompressjoni, speċjalment jekk l-għaddas ikun qabeż il-limiti ta 'deco no-stop u kien ippjanat li jagħmel waqfa.

WAQQA L-ĊOMB

Ftit ħafna bugħaddasa (4 %) jirrappurtaw li qatt waqgħu l-piż tagħhom intenzjonalment, iżda f'dawk l-okkażjonijiet rari meta kien meħtieġ li jneħħi l-vantaġġ, aktar minn wieħed minn kull 10 esperjenza diffikultajiet.
Half couldn’t find the release, and the rest had problems either with operating the release, dropping all the weight, or with the weights becoming entangled.
Meta wieħed iqis il-kundizzjonijiet li fihom bugħaddas jiddeċiedi li jneħħi l-piżijiet tiegħu, kwalunkwe kumplikazzjonijiet bħal dawn jistgħu jirrappreżentaw periklu serju.

AKTAR PROBLEMI

Filwaqt li 75% tal-għaddasa jirrappurtaw li qatt ma għandhom problemi bis-sistemi tal-piż tagħhom, il-bqija jirrappurtaw varjetà ta ' glitches. Kif muri fit-tabella, iċ-ċinturini li jiċċaqilqu u l-ħtieġa għal aġġustamenti frekwenti huma mard komuni.
So it’s perhaps no surprise that divers report not being able to find the release, or not being able to release the weight when needed. Surprisingly, 1 in 8 (13%) report that they have lost a weight from a belt or pocket, with 9% stating that they have lost their belts entirely.

KONTROLI TAS-SIGURTÀ

Clearly, if divers want some confidence that they can drop their weights when needed, it’s important for them to check their systems thoroughly.

Ħafna jirrapportaw li jagħmlu eżattament hekk. Aktar minn disgħa minn kull 10 jgħidu li jiċċekkjaw is-sistemi tal-piż tagħhom jew għal kull adsa jew għal kważi kull adsa.

Kważi 90% iwettqu verifika tal-funzjoni tas-sistema tal-piż tagħhom qabel il-biċċa l-kbira jew l-għaddas kollha, u l-istess numru jirrapportaw li jiċċekkjaw il-kundizzjoni tiegħu qabel il-biċċa l-kbira jew l-għaddas kollha.

Naturalment, id-dettalji ta 'dan il-kontroll jiddependu fuq it-tip ta' ċinturin, iżda jidher li fost l-aktar kontrolli importanti hemm il-kundizzjoni u l-funzjoni tal-bokkla jew ir-rilaxx, u s-sigurtà tal-piżijiet.

Kif tindika d-dejta, oġġetti oħra bħall-kundizzjoni tal-ħjata jistgħu wkoll ikunu kritiċi fil-valutazzjoni tal-kapaċità għall-baħar ta 'sistema ta' piż.

KWISTJONIJIET TA' KWALITÀ

Minkejja xi dehriet komuni, hemm varjazzjonijiet sinifikanti fost is-sistemi tal-piż prodotti minn manifatturi differenti.

F'rapport ta 'inċident wieħed li sar lil Scuba STAR Network, bugħaddas irrapporta li wara li kellu l-ammont ħażin ta' piż fuq iċ-ċintorin għall-ewwel adsa tiegħu tal-ġurnata, qaleb għal ċinturin differenti li kellu l-ammont xieraq.

Il-problema kienet li t-tieni ċinturin kellu bokkla tal-plastik, u s-snien li jaqbdu l-istrixxi tan-najlon biex jiżguraw iċ-ċinturin kienu jintlibsu sew.

Il-bokkla ċediet fit-tieni adsa, ħelset iċ-ċinturin u wassal biex l-għaddas jagħmel tlugħ mhux ippjanat minn 22m.

Fortunately, the diver did not suffer any injuries, although it’s unclear where his buddy was at the time.

L-għaddasa għandhom jixtru tagħmir magħmul minn materjali ta 'kwalità għolja, u jiċċekkjaw il-kundizzjoni tal-bokkli tagħhom jew tal-mekkaniżmi ta' rilaxx tal-piż tagħhom regolarment - jekk mhux qabel kull għadsa.

Bokkli mgħawġa jew bil-ħsara, snien milbusa u ċineg tan-najlon milbus jistgħu jkunu sinjali ta 'inkwiet, u għandhom jiġu sostitwiti.

Another crucial wear item is the Velcro used in many systems to secure weight pockets and other components of the weight system.

Repeated use over a long period can cause significant degradation of the attachment’s holding capacity, increasing the chances of inadvertent weight loss.

Quality of the stitching is another kwistjoni with pocket belts and other systems. Inferior stitching on pockets can easily unravel, allowing weights to fall out.

ARMAR XEWQA

Proper rigging is another key kwistjoni. When using a conventional weight-belt, divers should put a twist in it or use a weight clip to stop the weight sliding.

Ftit jew wisq koinċidenza tal-ilsien tista' wkoll tkun problema. Jekk iċ-ċinturin huwa qasir wisq, l-għaddas jista 'jkollu diffikultà biex jagħmel l-aġġustamenti meħtieġa għat-tensjoni taċ-ċinturin waqt l-inżul, u jista' aċċidentalment jitlef iċ-ċinturin fil-proċess.

B'koinċidenza ta 'l-ilsien wisq, l-eċċess jista' jitħabbel u jikkawża rilaxx aċċidentali, jew jitgeżwer u jipprevjeni li ċ-ċinturin jitneħħa.

Divers need to wear their weightbelts properly, with no other straps covering the belt, and with the buckle release facing in the correct direction.

TWISSIJIET MĠEDDA

The Scuba STAR Network safety survey isn’t the first to focus on problems with weightbelts and systems, but it’s an important reminder of the issues involved.

Madwar għaxar snin ilu, is-Soċjetà Medika ta’ Taħt il-Baħar tal-Paċifiku tan-Nofsinhar (SPUMS) ibbażata fl-Awstralja bdiet l-Istudju ta’ Monitoraġġ ta’ Inċidenti ta’ Għadds (DIMS) tagħha biex tevalwa kwistjonijiet fis-sikurezza tal-għadis.

According to its report, weightbelts rank fourth in the list of equipment-related incidents and accidents, and were implicated in 7% of the first 1000 equipment-related incidents and accidents reported.

Weightbelts were also involved in 12% of the reported injuries.

Among the recommendations made by the DIMS report were five taħriġ concepts that could help reduce the number of weightbelt-related incidents and accidents:

  • Kondotta taħriġ in how to control a rapid ascent.
  • Emphasise proper securing of the weightbelt.
  • Always verify that no other equipment or straps overlap the weightbelt.
  • Teach correct techniques for handling weightbelts at the exit point.
  • Teach proper technique for jettisoning the weightbelt – holding it away from the body so that when it falls it is clear of all other equipment.


As weight-integrated BCs become more popular, instructors and taħriġ agencies should update their programs to address the needs of this type of equipment as well, and provide a level of training commensurate with the application of new types of equipment.

L-għaddasa għandhom ikunu konxji ta 'tipi differenti ta' sistemi ta 'piż, u kif joperaw il-mekkaniżmi ta' rilaxx tagħhom.

Buddy checks should include verifying that each diver knows how to release his buddy’s weights.

Weightbelts and weight systems are not complicated devices but, as anecdotal evidence suggests, they can seriously complicate a dive when they don’t perform as expected.

Billi niffukaw fuq ftit kunċetti bażiċi, nistgħu nillimitaw il-potenzjal għal sorpriżi qawwija.

Sib aktar riżultati minn Scuba STAR’s Safety Surveys fil-websajt tagħhom.

PROBLEMI MAS-SISTEMI TAL-PIŻ

PROBLEMA% DIVERS JESPERJENZAW
Tibdil tal-piż jew taċ-ċinturin waqt l-għads20%
Iċ-ċinturin jeħtieġ aġġustament frekwenti14%
Telf ta 'piżijiet minn ċinturin jew but13%
Loss of weightbelt9%
Ma tistax tirrilaxxa l-piż (kollha)2%
Ma tistax tirrilaxxa l-piż (parzjali)1%
Problemi oħra1%

TIPS TA 'SIGURTÀ

  • Inspect your weightbelt or weight system before each dive, checking the condition of stitching, closures and buckle.
  • Qabel l-għadis, iċċekkja li l-mekkaniżmi tar-rilaxx tal-piż qed jaħdmu sew.
  • Verify that all weights are secured according to manufacturer recommendations. Don’t dive with suspect closures or attachments.
  • Iċ-ċinga żejda għandha tkun fil-medda ta '15-20 ċm.
  • Wear conventional weightbelts with the release oriented in the proper direction.
  • Ensure that no straps cross over the weightbelt.
  • Evita li tpoġġi piżijiet fil-bwiet BC jew f'postijiet oħra fejn jistgħu jitwaqqgħu jew jinqalgħu faċilment.
  • During descent, as your suit compresses, check tension on the belt to make sure that it doesn’t slip or rotate.
  • Iċċekkja li ħabib tiegħek jaf kif jirrilaxxa l-piż tiegħek f'emerġenza.

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