Current ASME standards require protection of fixed equipment power transmission devices located within 8 feet of the work surface, without exception. OSHA standards, on the other hand, require a maximum of 7 feet of protection.
At what height must flywheels be guarded?
All sprocket wheels and chains must be enclosed unless they are more than 7 feet from the floor or platform.
Which parts of a machine must be guarded?
Rotating barrels, containers, and drums must be protected by an enclosure in conjunction with the drive mechanism, so barrels, guns, or containers cannot rotate unless a guard enclosure is in place. Shafts, flywheels, pulleys, belts, chain drives, etc.
What is power transmission apparatus?
Power transmission devices are all components of a mechanical system that transfer energy to the part of the machine that does the work. These components include flywheels, pulleys, belts, connecting rods, couplings, cams, spindles, chains, cranks, and gears.
What rule is machine guarding?
General Requirements 29 CFR 1910.212(a)(1) states that one or more methods of machine protection must be used to protect operators and other employees from Sparks.
At what height above the floor or working level must fan blades be guarded?
Blade exposure, 29 CFR 1910.212(a)(5), states that all fans within 7 feet of the floor or working level must be protected. Guards must not have openings that are more than 0.5 inches wide.
Is machine guarding training required by OSHA?
OSHA requires that machines that expose employees to injury must be protected. The point of operation is the area of the machine where the machine performs cutting, forming, boring, or shaping operations on the material.
What is the purpose of guarding?
The purpose of the guard is to Secure devices (and machine guards) so that certain parts cannot be manipulated or tampered with by personnel.
How should a rotating shaft be guarded?
According to OSHA Standard 1910.219(c)(4)(i), shaft ends that project beyond one-half the shaft diameter must be protected by a non-rotating cap or safety sleeve. Shafts with keyways allow for easy hooking of clothing.
Do exhaust machines need safeguards?
Yes, there is a real need to protect machinery in the workplace. However, the extent to which it is interpreted according to minimum safety requirements (OSHA regulations) or best safety practices (ANSI standards) can be problematic.
What are the 4 types of machine guards?
There are four general types of guards
- Repaired.
- Interlocked.
- Adjustable.
- Self-adjusting.
Where should a ceiling fan be placed?
Ceiling fans should be installed or mounted in the center of the room, at least 7 feet above the floor and 18 inches from the wall. If ceiling height permits, install fan 8 to 9 feet above the floor for optimum airflow.
What do Guards do to protect the worker OSHA?
Security guards provide a physical barrier to prevent access to hazardous areas. Guarding devices prevent or detect operator contact with operating points or stop operation of potentially hazardous machines if any part of the operator’s body is on the hazardous part of the machine.
What is guarding in electrical?
Security includes placing or enclosing electrical equipment to prevent people from accidentally come into contact with the charging section. Effective protection requires equipment with exposed parts. to be placed where only authorized persons can access it, and operate at 50 volts or more. qualified to handle it.
What are examples of guarding?
Examples of protection methods include barrier guards, double-handed disconnects, and electronic safety devices.
When can guards attached to mechanical equipment be removed?
Guards. Guards attached to mechanical devices protect you from moving parts of the machine. Never remove a guard from a machine. If a guard is damaged or missing, do not use the machine until it can be repaired or replaced. Missing or damaged guards must be reported immediately.
How is the frequency of machine guarding inspections determined?
The frequency of machine guard inspections depends on the likelihood that the guard will be removed, the complexity of the guard, and the severity of the injury that could occur if the guard is breached or removed.
What should be firmly secured to the machine?
Guards and safety devices should be made of durable materials that will withstand normal conditions of use. They should be securely fastened to the machine. Protect against falling objects: Safeguards should ensure that objects are not classified as moving parts.
Who is responsible for ensuring that all machines are properly guarded?
The Occupational Safety and Health Administration (OSHA) is becoming more stringent in both regulation and enforcement regarding machine guarding violations. They are targeting industries that have a high risk of potential injury from machinery.
How does OSHA define guarded by location?
The term “guard” means a shield, fence, or enclosure protected by a cover, casing, shield, trough, drainage channel or railing, or position or location.
Why do fans have guards?
Fan guards are used to provide a physical barrier around spinning fan blades to prevent accidental contact with fingers or other objects.
What are fan guards?
Also known as finger guards or fan covers, fan guards are physical barriers that protect against accidental contact with spinning fan blades.
Can you have two ceiling fans one room?
One ceiling fan per room is usually sufficient. You do not want to risk overwhelming a room with too many fans. Most rooms in a house are too small to warrant multiple fans. Commercial buildings, however, are a different story. If your office has a large open floor plan, you will definitely need multiple fans.
Does a ceiling fan need to be centered in a room?
Many people place ceiling fans in the center of the room, but the most efficient locations are in areas where people congregate. For very small living rooms, centering the ceiling fan is optimal, but for larger rooms, place it directly over the seating area.
What are the two types of primary safeguarding methods OSHA?
Primary Methods of Protection Two primary methods of machine protection are used: guards and some type of protective device. Guards provide physical barriers that prevent access to hazardous areas.
Does OSHA require machine guarding training?
Protective measures are essential to protect workers from preventable injuries. OSHA requires that machines that expose employees to injury must be guarded.
Do lathes need guards?
Lathe chuck guards prevent an operator’s hands and clothing from getting caught in the chuck while it is turning. For added security, the chuck guard is designed so that the spindle key cannot be “forgotten” by omission.
Which of the following are all machine safeguarding requirements except?
All of the following are machine protection requirements, with the exception of
What are the 10 safety precautions use in machine workshop?
10 General Workshop Safety Tips and Rules
- Dress for the occasion.
- Sight protection.
- Keep the workshop clean.
- No drugs, alcohol, or other disturbances!
- Read the book.
- Keep tools and equipment sharp.
- Avoid unnecessary distractions.
- Use safety tools to help.
What are three primary categories of machine guarding?
They are
- Guards – These are physical barriers that prevent contact.
- Devices – These restrict or prevent access to hazardous areas.
- Automated feeding and ejection mechanisms – These eliminate operator exposure to points of operation while handling inventory (material).
What is the purpose of guarding electrical equipment with exposed parts?
To avoid the risk of accidental shock, live electrical components operating above 50 volts should be guarded with covers or other permanent barriers to prevent accidental contact by workers and their tools. Equipment can also be locked behind enclosures, in rooms, or even at height.
What is the purpose of guard ring in transmission line?
The purpose of transmission line guarding is to reduce the earth capacity of the lowest unit.
What is the basic principle of machine guarding?
Any part, function, or process of a machine that could cause injury should be protected. Hazards should be eliminated or controlled if the machine’s operation or accidental contact could injure nearby operators or others. If it works, it deserves your attention!
What do Guards do to protect the worker?
Security guards provide a physical barrier to prevent access to hazardous areas. Guarding devices prevent or detect operator contact with operating points or stop operation of potentially hazardous machines if any part of the operator’s body is on the hazardous part of the machine.
At what distance above the floor or working surface is guarding not required for moving parts?
(a) All moving parts of belt and pulley drives located below 7 feet above the floor or working level are guarded.
Do not remove safety guards from machines?
OSHA WARNING SAFETY SIGNS: Do not remove guards or operate machine. This material is protected by potential hazard team and alerts them from using the equipment without a guard.