Who can design a horizontal lifeline?
a qualified person
Horizontal lifelines shall be designed, installed, and used, under the supervision of a qualified person, as part of a complete personal fall arrest system, which maintains a safety factor of at least two. Lanyards and vertical lifelines shall have a minimum breaking strength of 5,000 pounds (22.2 kN).
What must horizontal lifelines be attached to?
In simplest form, the horizontal lifeline consists of a cable attached to two or more anchor points on a roof-top, crane runway, bridge or outdoor construction site, or any other elevated work area that poses a fall risk to personnel.
How do you make a horizontal lifeline?
Tell it’s you connect one end of the horizontal lifeline with the carabiner. Then on the other end you install the o-rings. For your connection points. And you take that over to your other anchor.
What are the characteristics of a horizontal lifeline?
A horizontal lifeline is a component in both fall arrest systems and fall restraint systems. They consist of a strong cable attached to two or more anchor points, which allows for the attachment of a safety harness and lanyard system.
How many workers can tie to a horizontal lifeline?
HLL capacities vary by manufacturer, but a common HLL capacity is two workers in fall arrest and four workers in fall restraint.
How long can a horizontal lifeline be?
Consider the following limitations/requirements prior to installing or using this equipment: 2.1 HORIZONTAL LIFELINE SPAN: The maximum horizontal lifeline span length is 60 ft. (18.3 m). The system length can be extended by using Intermediate Stanchions to create multiple spans (see Figure 1).
Do horizontal lifelines need to be engineered?
Horizontal lifeline systems can be job-built or they can be pre-engineered/commercially available systems with built-in shock absorbers. The shock absorber provides catenary* in the line in order to safely take the arresting forces applied by the worker’s fall.
How does a horizontal lifeline work?
At their most basic, horizontal lifelines incorporate a simple fiber or wire rope connected to a series of anchor points. A shuttle runs along the length of the rope, and workers connect to the shuttle using a lanyard and hook, in order to safely move along the line.
How tight should a horizontal lifeline be?
The sag in the horizontal cable between any two supports of the lifeline system should be limited to 12” (305 mm). This criteria (installation tension) is related to a fall situation when a fall occurs and the line is loaded with MAF (Maximum Arrest Force).
What are the 3 basic types of life line?
Life lines can be horizontal or vertical, temporary or permanent, rigid or flexible.
What is the OSHA requirement for fall protection?
OSHA requires that fall protection be provided at elevations of four feet in general industry workplaces, five feet in shipyards, six feet in the construction industry and eight feet in longshoring operations.
Is code for horizontal lifeline?
A lifeline must be wire rope of at least ½ inch (1.20- centimeter) diameter, not more than two persons shall be permitted to attach their lanyards to a single horizontal life line, at one time. The lifeline shall be anchored between two posts/supports not more than six meter apart.
What are the two types of lifeline?
- Flexible: they are formed by a cable in an anchorage or a textile rope.
- Rigid: life lines through a rail.
- Temporary: they are portable life lines. They can be by means of a cable or textile.
At what height is a harness required?
OSHA requires workers to wear a full-body harness, (one part of a Personal Fall Arrest System) when they are working on a suspended scaffold more than 10 feet above the working surface, or when they are working in bucket truck or aerial lift.
Does OSHA require a harness in a boom lift?
According to OSHA standard, employees must wear “a personal fall arrest or travel restraint system” when working from a boom lift.
What is the thickness of lifeline?
Lifelines used on rock-scaling operations, or in areas where the lifeline may be subjected to cutting or abrasion, shall be a minimum of 7⁄8 -inch wire core manila rope. For all other lifeline applications, a minimum of 3⁄4 -inch manila or equivalent, with a minimum breaking strength of 5,000 pounds, shall be used.
What is a lifeline made of?
A vertical lifeline assembly (VLA) is something you would commonly find in your fall protection bucket kit. The VLA is made up of a high-strength poly-rope with self-locking snap hook and a rope grab positioning device for you to use as your connector.
What is the OSHA standard for harnesses?
Personal fall protection systems must be worn with the attachment point of the body harness located in the center of the employee’s back near shoulder level. The attachment point may be located in the pre-sternal position if the free fall distance is limited to 2 feet (0.6 m) or less.
What height is fall protection?
Does OSHA require tie-off in a scissor lift?
Answer: No, neither §1926.451 or §1926.452(w) require employees to be tied-off when working from scissor lifts that have properly maintained guardrails.
Can you tie-off to a man lift?
During entry to and egress from the lift, a worker may tie-off to the lift (if the lift is designed to withstand the vertical and lateral loads imposed by the employee’s movement itself or by an arrested fall) or to an appropriate nearby structure.
What is the minimum diameter of lifeline?
A lifeline must be wire rope of at least ½ inch (1.20- centimeter) diameter, not more than two persons shall be permitted to attach their lanyards to a single horizontal life line, at one time.
What is the standard of life line?
What is the EN standard for horizontal lifeline system?
ISO 16024:2005(en), Personal protective equipment for protection against falls from a height — Flexible horizontal lifeline systems.