P 1.1 - Task 1
Term of Confined space
Confined space is a work environment which is enclosed with limited access which makes it dangerous. It may include storage tanks, tunnels, silos, underground electrical vaults pipelines or vessels. Confined space hazards
To select the appropriate protective clothing for a specific confined space area or work environment we have to identify the hazards in that particular environment that we want to select it for. What the hazards can be in confined space?
lack of oxygen
fire and explosions
hazardous liquids left in tanks
dust present in high concentrations
hot or cold conditions
increased water level
What we have to consider when choosing protective clothing and equipment? the task, job to be carried out
the suitability of those carrying out the task
arrangements for emergency escape, rescue
working materials and tools
Justification of selected protective equipment and clothing or how we have to justify when we select the level of protective clothing and equipment.We have to justify if there is a need to provide the highest level of protection for the skin, eyes or when operations are going to be conducted in confined or poorly ventilated areas. Is our confined space poorly ventilated?
Do we need to use gas masks? If yes what gas hazards we have to face with. Full-face or half-mask needed? What is the oxygen level in the confined space during work?
What ear protection we need to use. What is the noise level in the confined space? Tests to be carried out. Does the confined space contain flammable liquids such as oil? Slip hazard?
Do the protective clothing and equipment give the workers enough protection? Is there a chemical hazard? Do we have to use chemical-resistant clothes or gloves? Is there an electric shock hazard? If yes, what level?
Is there a fall hazard?
Personal Protection Equipment (PPE) in confined space
PPE is generally regarded as the last line of protection to avoid accidents. It also requires an appropriate managerial control system. However, PPE may be the first line of protection in the potentially hazardous environment and isolated position to enter a confined space.Each confined space may represent different hazards and levels of risk to health and safety. The last resort of PPE should be based on a risk assessment In terms of general rule the following guidance is recommended. Basic confined space PPE should include:
Full body protection (Overalls with suitable pockets for radio) Head protection (comfortable helmets with chinstraps)
Hand protection (hard-wearing, durable gloves)
Eye protection (protective glasses, goggles)
Ear protection (ear plugs or ear defenders - worn subject to communication system) Foot protection (steel toecaps (200 joules), oil resistant, steel midsoles) Gas meter - multi-gas meter for measuring of HC, H2S, CO, O2 is recommended Lighting (hand held with lanyard and appropriate beam width) Welding in Confined Spaces
To carry out welding and grinding in a confined space we have to follow all confined space entry and welding safety guidelines.Welding can be very dangerous in a confined space. Without suitable air ventilation, welding can become an admissible atmosphere into a poisonous one very quickly. When welding in a confined space, atmospheric/air monitoring should be carried out before anyone enters the space and periodically during the entry to ensure that the welding is not creating a toxic atmosphere. Justification of the level of protective personal equipment during welding, grinding in confined space.(What we need and why we need.) Justification PPE Reason to use
Required Not required ✓ Welding helmet Always needed. (Using welding helmet during welding is always required. Eye injury can occur from the intense light, UV radiation that a welding arc can produce. Injury from a welder's arc commonly is known as flash burn, welder's flash, or arc eye. Eye injury can also...
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