秦落烟武宣王免费阅读

秦落烟武宣王免费阅读All About Safety Construction

秦落烟武宣王免费阅读

Safety Harness , Body Harness

0c

秦落烟武宣王免费阅读



"Body harness" means a design of straps which may be secured about the employee in a manner to distribute the fall arrest forces over at least the thighs, pelvis. waist, chest and shoulders with means for attaching it,to other components of a personal fall arrest system.

How To Select Body Harness ?

The criteria of this section apply to PFAS and their use. Effective January 1, 1998, body belts and non-locking snaphooks are not acceptable as part of a personal fall arrest system.
1915.159(a)
Criteria for connectors and anchorages.
1915.159(a)(1)
Connectors shall be made of drop forged, pressed, or formed steel or shall be made of materials with equivalent strength.
1915.159(a)(2)
Connectors shall have a corrosion-resistant finish, and all surfaces and edges shall be smooth to prevent damage to the interfacing parts of the system.
1915.159(a)(3)
D-rings and snaphooks shall be capable of sustaining a minimum tensile load of 5,000 pounds (22.24 Kn).
1915.159(a)(4)
D-rings and snaphooks shall be proof-tested to a minimum tensile load of 3,600 pounds (16 Kn) without cracking, breaking, or being permanently deformed.
1915.159(a)(5)
Snaphooks shall be sized to be compatible with the member to which they are connected to prevent unintentional disengagement of the snaphook caused by depression of the snaphook keeper by the connected member, or shall be of a locking type that is designed and used to prevent disengagement of the snap-hook by contact of the snaphook keeper by the connected member.
1915.159(a)(6)
Snaphooks, unless of a locking type designed and used to prevent disengagement from the following connections, shall not be engaged:
1915.159(a)(6)(i)
directly to webbing, rope or wire rope;
1915.159(a)(6)(ii)
to each other;
1915.159(a)(6)(iii)
to a D-ring to which another snaphook or other connector is attached;
1915.159(a)(6)(iv)
to a horizontal lifeline; or
1915.159(a)(6)(v)
to any object that is incompatibly shaped or dimensioned in relation to the snaphook such that unintentional disengagement could occur by the connected object being able to depress the snaphook keeper and release itself.
1915.159(a)(7)
On suspended scaffolds or similar work platforms with horizontal lifelines that may become vertical lifelines, the devices used for connection to the horizontal lifeline shall be capable of locking in any direction on the lifeline.
1915.159(a)(8)
Anchorages used for attachment of personal fall arrest equipment shall be independent of any anchorage being used to support or suspend platforms.
1915.159(a)(9)
Anchorages shall be capable of supporting at least 5,000 pounds (22.24 Kn) per employee attached, or shall be designed, installed, and used as follows:
1915.159(a)(9)(i)
as part of a complete personal fall arrest system which maintains a safety factor of at least two; and
1915.159(a)(9)(ii)
under the direction and supervision of a qualified person.
1915.159(b)
Criteria for lifelines, lanyards, and personal fall arrest systems.
1915.159(b)(1)
When vertical lifelines are used, each employee shall be provided with a separate lifeline.
1915.159(b)(2)
Vertical lifelines and lanyards shall have a minimum tensile strength of 5,000 pounds (22.24 Kn).
1915.159(b)(3)
Self-retracting lifelines and lanyards that automatically limit free fall distances to 2 feet (0.61 m) or less shall be capable of sustaining a minimum tensile load of 3,000 pounds (13.34 Kn) applied to a self-retracting lifeline or lanyard with the lifeline or lanyard in the fully extended position.
1915.159(b)(4)
Self-retracting lifelines and lanyards which do not limit free fall distance to 2 feet (0.61 m) or less, ripstitch lanyards and tearing and deforming lanyards shall be capable of sustaining a minimum static tensile load of 5,000 pounds (22.24 Kn) applied to the device when they are in the fully extended position.
1915.159(b)(5)
Horizontal lifelines shall be designed, installed, and used under the supervision of a qualified person, and shall only be used as part of a complete personal fall arrest system that maintains a safety factor of at least two.
1915.159(b)(6)
Effective November 20, 1996, personal fall arrest systems shall:
1915.159(b)(6)(i)
limit the maximum arresting force on a falling employee to 900 pounds (4 Kn) when used with a body belt;
1915.159(b)(6)(ii)
limit the maximum arresting force on a falling employee to 1,800 pounds (8 Kn) when used with a body harness;
1915.159(b)(6)(iii)
bring a falling employee to a complete stop and limit the maximum deceleration distance an employee travels to 3.5 feet (1.07 m), and
1915.159(b)(6)(iv)
Have sufficient strength to withstand twice the potential impact energy of an employee free falling a distance of 6 feet (1.83 m), or the free fall distance permitted by the system, whichever is less;

Note to Paragraph (b)(6) of this Section: A personal fall arrest system which meets the criteria and protocols contained in appendix B, is considered to comply with paragraph (b)(6). If the combined tool and body weight is 310 pounds (140.62 kg) or more, systems that meet the criteria and protocols contained in appendix B will be deemed to comply with the provisions of paragraph (b)(6) only if they are modified appropriately to provide protection for the extra weight of the employee and tools. (7) Personal fall arrest systems shall be rigged such that an employee can neither free fall more than 6 feet (1.83 m) nor contact any lower level.
1915.159(b)(7)
Personal fall arrest systems shall be rigged such that an employee can neither free fall more than 6 feet (1.8 m) nor contact any lower level.
1915.159(c)
Criteria for selection, use and care of systems and system components.
1915.159(c)(1)
Lanyards shall be attached to employees using personal fall arrest systems, as follows:
1915.159(c)(1)(i)
The attachment point of a body harness shall be located in the center of the wearer's back near the shoulder level, or above the wearer's head. If the free fall distance is limited to less than 20 inches (50.8 cm), the attachment point may be located in the chest position; and
1915.159(c)(1)(ii)
The attachment point of a body belt shall be located in the center of the wearer's back.
1915.159(c)(2)
Ropes and straps (webbing) used in lanyards, lifelines and strength components of body belts and body harnesses shall be made from synthetic fibers or wire rope.
1915.159(c)(3)
Ropes, belts, harnesses, and lanyards shall be compatible with their hardware.
1915.159(c)(4)
Lifelines and lanyards shall be protected against cuts, abrasions, burns from hot work operations and deterioration by acids, solvents, and other chemicals.
1915.159(c)(5)
Personal fall arrest systems shall be inspected prior to each use for mildew, wear, damage, and other deterioration. Defective components shall be removed from service.
1915.159(c)(6)
Personal fall arrest systems and components subjected to impact loading shall be immediately removed from service and shall not be used again for employee protection until inspected and determined by a qualified person to be undamaged and suitable for reuse.
1915.159(c)(7)
The employer shall provide for prompt rescue of employees in the event of a fall or shall ensure that employees are able to rescue themselves.
1915.159(c)(8)
Body belts shall be at least one and five-eighths inches (4.13 cm) wide.
1915.159(c)(9)
Personal fall arrest systems and components shall be used only for employee fall protection and not to hoist materials.
1915.159(d)
Training. Before using personal fall arrest equipment, each affected employee shall be trained to understand the application limits of the equipment and proper hook-up, anchoring, and tie-off techniques. Affected employees shall also be trained so that they can demonstrate the proper use, inspection, and storage of their equipment.

[61 FR 26321, May 24, 1996; 67 FR 44544, July 3, 2002]

http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=10275

Safety Shoe ( ?Basic PPE when go to Construction Area )

1c

秦落烟武宣王免费阅读



Safety Shoe ( Steel Toe Boot)
You Shall be wear safety shoewhen go to construction areafor protect your foot

Standard of Safety Shoe
safety shoe
shall meet the requirements and specifications in American National Standard for Men's Safety-Toe Footwear, Z41.1-1967

What is the difference between ANSI steel toe and ASTM steel toes?

As of March 2005, ASTM F2413 standard superceded the ANSI Z41 standard. Manufacturers and distributors will implement a "running change" to their inventory from the ANSI Z41 labeled fotwear. Because there is no change in the protocol, the ASTM F2413 standard does not require that the change from ANSI to ASTM labeled footwear occur in a specific time period.
The protective footwear you choose must comply with the American Society for Testing and Materials (ASTM) standard F2413-05, formerly the American National Standards Institute's (ANSI) standard Z41-1999. The F2413-05 standard separates safety footwear into different categories such as Impact and Compression Resistance.

ASTM F2413-05
- The letters F2413 reference the performance requirement for foot protection. The additional digits following the standard designation indicate the year of the standard to which the protective footwear complies, for example: 05 refers to 2005.
M
= Footwear designed for a male.
F
= Footwear designed for a female.
I/75
= Impact rating of 75 (foot pounds)
C/75
= Compression rating of 75 (2500 lbs. of pressure)

The ASTM F2413 standard has two classifications for compression ratings 75 = 2,500 lbs and 50 = 1,750 lbs. This means the footwear has been tested to withstand compressive loads up to the designated number of pounds before the toe-cap will start to crush or crack.


You can read more information from this : http://www.labsafety.com/refinfo/printpage.htm?page=/refinfo/ezfacts/ezf252.htm

Safety Glasses ( Basic PPE when go to Construction Area )

0c

Monday, December 31, 2007



Safety Glasses
You Shall be wear safety helmet when go to construction areafor protect your eye .

Standard of Safety Glasses
Safety Glasses
shall meet the requirements specified in American National Standards Institute, Z87.1-1968, Practice for Occupational and Educational Eye and Face Protection.

Safety Helmet , Hard Hat ( Basic PPE when go to Construction Area )

3c

Sunday, December 30, 2007


Safety Helmet ( Hard Hat )
You Shall be wear safety helmet when go to construction areafor protect your headfrom impact, or from falling or flying objects,
or from electrical shock and burns.


Standard of Safety Helmet

秦落烟武宣王免费阅读ANSI Z89.1-1986

ANSI Z89.1-1986 separates protective helmets into different types andclasses.

The standard identifies Type 1 and Type 2 helmets. Type 1 helmets incorporatea full brim (the brim fully encircles the dome of the hat); Type 2 helmetshave no encircling brim, but may include a short bill on the front (similarto a baseball cap).

In terms of electrical performance, ANSI Z89.1-1986 recognizes threeclasses:

  • Class A Helmets are intended to reduce the force of impactof falling objects and to reduce the danger of contact with exposedlow-voltage electrical conductors. For certification, sample shellsare proof-tested at 2,200 volts of electrical charge.
  • Class B Helmets are intended to reduce the force of impactof falling objects and to reduce the danger of contact with exposedhigh-voltage electrical conductors. Sample shells are proof-tested at20,000 volts.
  • Class C Helmets are intended to reduce the force of impactof falling objects, but offer no electrical protection.

Note: The voltages stated in Classes A and B are not intendedto be an indication of the voltage at which the headgear protects thewearer.

In addition to electrical protection, hard hats are also tested for impactand penetration resistance from blows to the top of the head, flammabilityresistance, and water absorption. The rigorous testing requirements aredescribed in detail within the standard.

Every hard hat conforming to the requirements of ANSI Z89.1-1986 mustbe appropriately marked to verify its compliance. The following informationmust be marked inside the hat:

?The manufacturer's name
?The legend, "ANSI Z89.1-1986"
?The class designation (A, B or C)

秦落烟武宣王免费阅读

In 1997 ANSI published a revision to its Z89.1 head protection standard.ANSI Z89.1 contains some notable changes.

The revision eliminated the old Type 1 and Type 2 design designations.In the revised standard, "Type" is used to designate whethera helmet provides protection strictly from blows to the top of the head(Type I) or protection from blows to both the top and sides of the head(Type II).

In addition, Z89.1-1997 also changed the alpha designations for the classesof electrical performance. Under Z89.1-1997, the following three classesare recognized:

  • Class G (General) Helmets--This is equivalent to the old ClassA. Class G helmets are proof tested at 2,200 volts.
  • ClassE (Electrical) Helmets--This is equivalent to the old ClassB. Class E helmets are proof tested at 20,000 volts.
  • Class C (Conductive) Helmets--This class provides no electricalinsulation; the alpha designation did not change from the old standard.

Hard hats must also contain user information under the 1997 standard.In addition to the manufacturer's name, ANSI legend and class designation,Z89.1-1997 compliant helmets must be marked with the date of manufacture.Instructions pertaining to sizing, care and service life guidelines mustalso accompany the hard hat.

ANSI Z89.1-2003

ANSI published a revision to the Z89.1-1997 standard in 2003. The mostsignificant changes from the 1997 version were made to harmonize withother national standards that test and evaluate equipment performance.In addition, many physical requirements for helmet components that donot provide added user value or that limited design or performance havebeen removed.

Personal Protective Equipment ( PPE )

0c

Saturday, January 13, 2007

What is Personal Protective Equipment ( PPE ) ?
Personal protective equipment, or PPE, is designed to protect employees from serious workplace injuries or illnesses resulting from contact with chemical, radiological, physical, electrical, mechanical, or other workplace hazards. Besides face shields, safety glasses, hard hats, and safety shoes, PPE includes a variety of devices and garments such as goggles, coveralls, gloves, vests, earplugs, and respirators.


Consider the following when assessing whether PPE is suitable:
-Is it appropriate for the risks involved and the conditions at the place where
exposure to the risk may occur? For example, eye protection designed for
providing protection against agricultural pesticides will not offer adequate face
protection for someone using an angle grinder to cut steel or stone.
-Does it prevent or adequately control the risks involved without increasing the
overall level of risk?
-Can it be adjusted to fit the wearer correctly?
-Has the state of health of those who will be wearing it been taken into
account?
- What are the needs of the job and the demands it places on the wearer? For
example, the length of time the PPE needs to be worn, the physical effort
required to do the job and the requirements for visibility and communication.
- If more than one item of PPE is being worn, are they compatible? For example,
does a particular type of respirator make it difficult to get eye protection to fit
properly?

You Can See Standard Of PPE From This Link : www.osha.gov/SLTC/constructionppe/standards.html

Safety construction © 2008 Blog Design by Safety Construction