1 / 15

CONFINED SPACE ENTRY TRAINING PROGRAM

CONFINED SPACE ENTRY TRAINING PROGRAM. INTRODUCTION. WHAT IS A CONFINED SPACE? - Large enough for an employee to enter. - Has restricted means of entry or exit. - Is not designed for continuous occupancy. EXAMPLES - Ship compartments - Missle fuel tanks - Sewers

tiffanyd
Télécharger la présentation

CONFINED SPACE ENTRY TRAINING PROGRAM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CONFINED SPACE ENTRYTRAINING PROGRAM

  2. INTRODUCTION WHAT IS A CONFINED SPACE? - Large enough for an employee to enter. - Has restricted means of entry or exit. - Is not designed for continuous occupancy. EXAMPLES - Ship compartments - Missle fuel tanks - Sewers - Vats - Silos - Tunnels HAZARDS - Dangerous vapors, fires, explosions & physical hazards.

  3. PHYSICAL HAZARDS - Mechanical equipment or moving parts like agitators, blenders and stirrers. - Gases, liquids, fluids & steam from connecting pipes. - Heat and sound.

  4. OXYGEN DEFICIENCY - Most confined space accidents are related to atmospheric conditions in the space or failure to continuously monitor hazards. - OSHA minimum safe level of oxygen is 19.5%, maximum is 23.5% (normal air is 20.8% by volume). - At 16% you become disoriented, 8-12% you generally become unconscious. - Oxygen can be displaced by gases (Argon, nitrogen, etc.)

  5. COMBUSTIBILITY - Fire and explosion are serious dangers in confined spaces. - Fumes & vapors ignite quickly in the trapped air. - Flammable & combustible gases or vapors may be present from previous cargoes, tank coatings, preservatives and welding gases. - Ignition of these hazards can come from faulty electrical equipment, static electricity, welding sparks or cigarettes.

  6. TOXIC AIR CONTAMINANTS - Occur from material previously stored in the tank or as result of use of coatings, cleaning solvents, or preservatives. - Cannot see or smell most toxics, but they present two types of risk in a confined space : * Irritation of respiratory or nervous system. * Cut off oxygen supply or get into lungs and asphyxiate.

  7. WORKING IN CONFINED SPACES - Plan carefully before entering space at all. - Test air before entry and periodically as you work. - If hazards are found, then area becomes a “permit required” confined space. Entering space is done only through by the following of appropriate procedures. - A rescue plan should be in place in case of emergency. - Safe entry is the beginning. Complete the work and exit safely.

  8. BEFORE YOU ENTER - Entry permits must be used for entry into space that has hazard potential related to atmospheric conditions or any serious hazard. - Only a worker with a written permit should be allowed to enter a permit-required confined space. - Where permits are needed, get one from supervisor and post it outside the confined space to warn others that you are inside.

  9. CONTROL OF HAZARDOUS ENERGY - Use lockouts and tags to prevent accidental equipment startup while someone is in the confined space. - Cut off steam, water, gas or power lines that enter the confined space. - Use only safe, grounded, explosion-proof equipment and fans.

  10. VENTILATION - Use ventilating equipment where possible. - Oxygen level should be maintained between 19.5-23.5%. - Toxic gases and vapors are kept at OSHA prescribed levels. - Portable SCBA used where entrance is large enough, unless atmosphere is ventilated or has no atmospheric hazards. - If entrance is small an airline mask should be used with supplied air. - Eye, hearing protection & clothing could be needed.

  11. TESTING THE AIR - Common cause of injury or death is failure to test air in confined spaces. - Always test for oxygen & combustibility by probing with test instruments near the entry. - Once space is opened, test air from top to bottom. Gases like propane and butane are heavy and will sink. Light gases such as methane will rise to the top ( Check all levels !!!).

  12. TESTING THE AIR CONTINUED - After confirming oxygen level is adequete and nothing combustible in atmosphere, test for toxicity. - Notify supervisor if pretests find hazards that you can’t protect against adequately. - Follow up testing may be periodic or continuous depending on the conditions involved. - The work performed in the confined space may change air quality, so continuous testing may be needed.

  13. RESCUE PROCEDURES - OSHA estimates that 54 workers die each year in confined space accidents. About 2/3rds of those result from those attempting a rescue. - When rescue workers enter space, at least one person is to remain outside to summon help or offer assistance. - Outside attendant should be equipped with a SCBA and trained in first aid/CPR. - Constant communication should be maintained with those in the space by visual, radio, or field telephone.

  14. RESCUE PROCEDURES CONTINUED - If emergency entry is needed, attendant should not enter until additional help arrives. - Ropes tied onto a worker’s waist is not acceptable rescue method, because it does not allow a single attendant to remove injured worker. - Use of full body harness & lifeline is better approach. Allows a block and tackle to be attached, so one rescuer can do job.

  15. WORK AT WORKING SAFELY - Follow safety procedures that you have been trained on. - Use prescribed personal protective equipment for tasks. - Test air in confined space for flammable, explosive and toxic vapors and gases before entry. Test again while work is in progress to assure continued worker safety. - Use spark proof tools and explosion proof fans, lights or air movers. - Trained, well equipped workers standing by as rescuers.

More Related