C. 20. Machinery - Special Safety Measures Flashcards
What does the regulation stipulate about any person having charge of any machinery which, for the safety of life or limb, requires constant supervision?
20.1.2 No person having charge of any machinery which, for the safety of life or limb, requires constant supervision shall for any reason whatever, absent himself or cease to have continual supervision of such machinery during the periods for which he is in charge unless he be replaced by a competent person, nor shall any person in charge of such machinery be caused or allowed to work more than 10 hours during any continuous period of 24 hours: Provided that this limit may be exceeded where ordered by the manager or other person in authority in cases of emergency or where written permission thereto has been granted by the Principal Inspector of Mines.
What does the regulation stipulate about the operation of or attendance on machinery?
20.1.1 The operation of or attendance on machinery shall be in charge of a competent shiftsman, but unskilled persons working under his direction may be employed on such operation or attendance provided that the shiftsman exercises effective control.
Fill in the missing words:
20.2 No employee, unless his duty absolutely necessitates it, shall trespass within the safety guards or fences erected under these regulations. In case he notices anything which might be dangerous to ______ or ______, or _______________, he shall as soon as possible, inform the person in charge thereof.
20.2 No employee, unless his duty absolutely necessitates it, shall trespass within the safety guards or fences erected under these regulations. In case he notices anything which might be dangerous to life or limb, or to the working of machinery, he shall as soon as possible, inform the person in charge thereof.
How shall the area be where machinery work?
- 3.1 Every dangerous place, such as an elevated platform, pit or traphole, shall be fenced off so as effectively to safeguard any person authorised to work there or be in the vicinity.
- 3.2 No person shall, without authority, enter any place where machinery is erected.
What may no person wear in close proximity to moving machines?
20.4 No person engaged in close proximity to moving machinery shall wear or be permitted to wear loose outer clothing.
What shall be done to exposed machinery and their parts which may be a danger to any person?
20.5 All exposed machinery which, when in motion, may be dangerous to any person shall be securely fenced off. Efficient guards shall be provided to such parts of any machinery as may be a source of danger to any person.
What does the regulation stipulate about the repairing, adjusting, testing, examining, cleaning or lubricating of machinery in motion?
20.6 The repairing, adjusting, testing, examining, cleaning or lubricating of machinery in motion shall not be undertaken by any person other than a competent person where there is a risk of personal injury, and then only when it is impracticable to stop machinery. Automatic devices for oiling machinery whilst in motion shall be provided wherever practicable.
What does the regulation stipulate about belt-driven machinery?
- 7.1 Belt-driven machinery, which it is necessary to stop and start without interfering with the speed of the prime mover, shall be permanently fitted with a satisfactory mechanical appliance for the purpose.
- 7.2 No person shall ship or unship any driving belt while the machinery is in motion, with the exception of the customary shifting of light belts on the coned pulleys of machine tools for the purpose of alteration in the working speed.
- 7.3 No person shall set a machine or machinery in motion unless he has taken all necessary precautions to ensure that no other person can be injured by the setting in motion thereof.
Fill in the missing words:
20.8 Every reasonable ___________ shall be taken in connection with the use of machinery to ensure that the safety of every person employed on or about such machinery is not endangered.
20.8 Every reasonable precaution shall be taken in connection with the use of machinery to ensure that the safety of every person employed on or about such machinery is not endangered.
What shall be done with every safety appliance at a mine or works?
20.9.1 Every safety appliance at a mine or works shall be maintained in good working order and properly used.
When shall an apparatus or any machine be immediately stopped?
20.9.2 The using of an apparatus or of any machinery which does not comply with the provisions of these regulations, or the working of any apparatus or of any machinery the using of which appears in any way to be or to have become dangerous, shall immediately be stopped. Until such time as such apparatus or machinery complies with the requirements of these regulations, or such dangerous condition has been rectified, such apparatus or machinery shall not be used.
What shall the person in immediate charge of any work on or repairs to machinery ensure?
- 9.3.1 Subject to regulation 20.6 the person in immediate charge of any work on or repairs to machinery shall ensure that the power supply to such machinery is switched off and locked out or disconnected in accordance with a code drawn up in writing by the engineer or competent person appointed in terms of regulation 2.13.2, and that the power supply remains disconnected or switched off until the work or repairs have been completed.
- 9.3.2 No person shall conduct maintenance or repair work, and no person shall cause or permit such work to be done, until all reasonable precautions have been taken to ensure that the work can be done safely. A machine or any part of a machine which may fall on the person conducting such work or on any other person shall be adequately supported.
When may an apparatus, component or machinery made of a light metal be used in a hazardous area?
- 10 No apparatus, component or machinery made of a light metal shall be used in a hazardous area unless such apparatus, component or machinery is-
(a) protected by means of a housing sheath, cover or coating (excluding paint); or
(b) contained, situated or used,In such a manner that no dangerous condition can result therefrom.
What is the definition of “light-metal”?
“light-metal” means-
(a) Aluminium;
(b) Magnesium;
(c) Titanium; and
(d) Any alloy containing more than –
(i) 15 percent aluminium by mass of the alloy;
(ii) 15 percent aluminium, magnesium and/or titanium, taken together by mass of the alloy; or
(iii) 6 percent magnesium and/or titanium, taken together or separately, by mass of the alloy
