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What you have said is very correct, I have heard stories of guys insulating spanners to 1000v with tape and having there arms up to there shoulder in tranny oil :)

I can't think of any situation where you would need to have your arm(s) up to your shoulders in tranny mineral oil, when working on an oil filled transformer!! Not a very healthy thing to do on many levels... lol!!

Oh, and anyone that relies on insulating tape to insulate a spanner to 1000V is an unprecedented fool!! lol!!
 
Last year, I had to connect new lighting and power circuits to an excisting 3 phase db that couldnt be turned off!! The buzzing noise was quite theraputic..lol Probably not the same as what you guys have done but it can still be fatall if not done with due care and attention.
 
OCB that's when u get deep in there : D


Anyone that works on an oil circuit breaker up to the shoulders in mineral oil is a bloody idiot!! Think you need to look at the dangers associated with prolonged skin contact with the mineral oils used in trannys and breakers... lol!!
 
I think I know about mineral oil. Hence why putting ur arm in it is something I commented on.
Lol
You just stick to drilling live bus bars and leave the advice to someone else. LOL
 
Last edited by a moderator:
I think I know about mineral oil. Hence why putting ur arm in it is something I commented on.
Lol
You just stick to drilling live bus bars and leave the advice to someone else. LOL

Did you, ...where??

That's fine, so long as it's not you!! lol!!
 
Last edited by a moderator:
Transformer oil

HAZARDS IDENTIFICATION
Potential Health Effects:

Eye: Contact may cause mild eye irritation including stinging, watering, and redness.

Skin: Contact may cause mild skin irritation including redness, and a burning sensation. Prolonged or repeated contact can worsen irritation by causing drying and cracking of the skin leading to dermatitis (inflammation). No harmful effects from skin absorption are expected.

Inhalation (Breathing): No information available. Studies by other exposure routes suggest a low degree of toxicity by inhalation.

Ingestion (Swallowing): No harmful effects expected from ingestion.
Signs and Symptoms: Effects of overexposure may include irritation of the nose and throat, irritation of the digestive tract, nausea and diarrhea.

Cancer: Inadequate data available to evaluate the cancer hazard of this material.

Target Organs: Inadequate data available for this material.

Developmental: No data available for this material.

Pre-Existing Medical Conditions: Conditions aggravated by exposure may include skin disorders.

FIRST AID MEASURES

Eye: If irritation or redness develops, move victim away from exposure and into fresh air. Flush eyes with clean water. If
symptoms persist, seek medical attention.

Skin: Wipe material from skin and remove contaminated shoes and clothing. Cleanse affected area(s) thoroughly by
washing with mild soap and water and, if necessary, a waterless skin cleanser.

Inhalation (Breathing): If respiratory symptoms develop, move victim away from source of exposure and into fresh air.
If symptoms persist, seek medical attention. If victim is not breathing, clear airway and immediately begin artificial
respiration. If breathing difficulties develop, oxygen should be administered by qualified personnel. Seek immediate
medical attention.

Ingestion (Swallowing): First aid is not normally required; however, if swallowed and symptoms develop, seek medical attention.

Notes to Physician: High-pressure hydrocarbon injection injuries may produce substantial necrosis of underlying tissue despite an innocuous appearing external wound. Often these injuries require extensive emergency surgical debridement and all injuries should be evaluated by a specialist in order to assess the extent of injury.

Acute aspirations of large amounts of oil-laden material may produce a serious aspiration pneumonia. Patients who aspirate these oils should be followed for the development of long-term sequelae.
Inhalation exposure to oil mists below current workplace exposure limits is unlikely to cause pulmonary abnormalities.
 
I can't believe that no one can draw out the difference between live working & live testing.
HSE do, & I have discussed it directly with senior HSE personnel, so I have it from the "horses mouth" as it were.
Can anyone else comment or suggest?
 
HSE definition,

Live electrical working is defined as work performed on electrical equipment that is at a
voltage by being connected to a source of electricity, either the live parts are exposed so that they can be touched either directly or indirectly by means of some conducting object that they are either live at a dangerous energy level or dangerous potential, i.e. over 50 V ac (alternating current voltage) or 120 V dc (direct current voltage) in dry conditions.

I believe the HSE take the above statement directly from the electricity at work act.
 
So let me get this clear.

If a qualified spark goes to a job and the customer says they are getting an electric shock off the taps.
He then touches said taps himself to see if he gets an electric shock as well !

He's actually not 'live working' he's in fact 'live testing'...........but using his fingers instead of his test meter?
Makes sense I suppose :shocked:
 
So let me get this clear.

If a qualified spark goes to a job and the customer says they are getting an electric shock off the taps.
He then touches said taps himself to see if he gets an electric shock as well !

He's actually not 'live working' he's in fact 'live testing'...........but using his fingers instead of his test meter?
Makes sense I suppose :shocked:

It's better to get the client to touch it again. Or better still bring the wife along for a ride.
 
Quick fire question.

I was always told that you cannot do live working unless the customer cannot shut X appliance down for what ever reason, a risk assessment is in place with a proper live working procedure/LOA.
Granted you cannot do live work in a hazardous area, but AP on site claims you will never do live work under X name.

Testing is live work right................. putting your fluke on live terminals is live work so I was always led to believe, you cannot always guarantee that you have isolated correctly.

Anything where you may come into contact with live exposed conductive parts is live working or is testing not part of this - I was always led to believe it was, as it meets the above.

Lets ignore unusual situations that may arise in certainly sectors. There is no reason that can be justified for working on a live electrical circuit, that simple.

If you wish to test a live electrical circuit then you should be operating under a "Sanction To Test" Permit under which you confirm the circuit is safe/unsafe and if you are then going to work on it you confirm the circuit has been isolated under a LOTO system and then you should be given a separate permit to undertake the works.

The sanction to test should remain open until the work has been completed, the Lockouts removed and you have tested and proved the circuit safe and it has been re-energised.

Complicated way to do things, but that is because the world is full of people who take chances and get other people injured or killed. It is a pain in the bum to do, but it is there to save your life.

Remember, the MHSAW requires your employer to undertake RAMS before commencing works, thus you should identify the risks and then take necessary action to moderate or remove those risks, failure to do so adequately leaves your employer and possibly you liable to prosecution by the HSE, and in extreme cases, the Police for Corporate Manslaughter if they can be shown to have been willfully negligent in respect to safe operating procedures.
 

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