The Safewaze Mobile SafeLink Horizontal Lifeline System is an engineered personal fall arrest system designed for workers at elevated work positions, particularly at leading edges of buildings under construction. When properly erected, used, and maintained, it complies with OSHA regulations for personal fall arrest systems. The system is designed to minimize total fall distance and arresting forces in the event of a fall.
Function Description:
The SafeLink System provides an overhead horizontal lifeline, which offers several advantages: it minimizes obstruction to the worker, reduces the likelihood of a falling employee pulling co-workers off the elevated surface, and minimizes total fall distance. The horizontal lifeline should never be positioned below the elevation of the dorsal D-ring on the back of the full-body harness. The system is designed for up to four users at one time, with a capacity of up to 310 lbs (140.61 kg) per user (including clothing, tools, etc.). It operates in temperatures between -40°F and +130°F (-40°C to +54°C). The system must be installed and used under the supervision of a "qualified person" as defined by OSHA 1926.32(m).
System Components:
A complete SafeLink system consists of Anchorage, Body Support, and Connecting Devices. Key components include:
- Aluminum Posts (FS-EX5501-5): 7-1/2 ft (2.29 m) long, 3-1/2 in (88.9 mm) outside diameter, 1/2 in (12.7 mm) wall thickness. Each post has two sets of 9/16 in (14.29 mm) holes for eye-bolts.
- Eye-Bolt and Nut (FS-EX2508): Zinc-plated, 1/2 in (12.7 mm) diameter by 4.5 in (114.3 mm) long drop-forged steel eye-bolts with shoulders, used to connect the horizontal lifeline cable to the aluminum post(s).
- Fist-Grip Cable Clamp (019-8050): Attaches to 5/16 in (7.94 mm) cable, providing at least 80% of the cable's strength.
- PVC Sleeve (FS-EX2504): 12 in (304.80 mm) long, 4 in (101.6 mm) inside diameter, Schedule 40 PVC. Must be cast at a depth of 11 in (279.4 mm) into 2,000 PSI (13.79 MPa) or greater concrete, no closer than 3-1/2 in (88.9 mm) to any concrete edge.
- Shackles (019-8037): Forged, rated for a safe working load of at least 750 lbs (340.19 kg). Screw pin or bolt-type shackles are permitted; "safety type" shackles (with bolt and cotter pin) are the only type permitted to connect an SRL to the Lifeline System.
- 10,000-lb (4535.92 kg) Rated Anchorage (Concrete): Rated in any direction up to 90° when placed in concrete with a compressive strength of 3,000 PSI (20.7 MPa).
- Reinforced Cross-Arm Strap (FS88811-HW-10): 1-3/4 in (44.45 mm) polyester webbing with 3 in (76.2 mm) nylon abrasion padding, 10 ft (3.05 m) long, designed to choke around reinforced concrete structures.
- Whizzler (FS-EX2514): Aluminum cap with a 360° swiveling D-ring, placed over the aluminum post for single-point anchorage applications.
- RebarLink (FS-EX2507): 6061-T6511 aluminum bracket, clamps to twelve (12) # 9 or larger stirruped rebar.
- EZLink Double Connector (FS-EX2502-DBL): Attaches directly to column rebar cage (six (6) #9 rebar or larger) without decking alterations.
- FormLink (FS-EX2502): 6061-T6511 aluminum, used clamped around rebar, finished columns, or mounted on finished walls.
- Bolt On SafeLink Post Baseplate (019-8034): For use with aluminum posts, mounted to concrete (4x 1/2" diameter Anchor Rods with Epoxy or Mechanical Anchors) or steel.
- Weld On SafeLink Post Baseplate (019-8035): For use with aluminum posts, designed for Weld On applications. Steel (welded installation) must be installed by an AWS certified welder.
- Come-A-Long (FS-EX2510): Zinc plated steel with 12 ft (3.66 m) of 7/32 in (5.56 mm) Aircraft cable, used to adjust tension. Must be used with the SafetyLink Adjustable Safety Strap.
- SafeLink Snatch Block w/Shackle (FS-EX320): Powder coated tensile steel with a minimum breaking load of 5,000 lbs, utilized for tensioning with a customer-provided cable puller.
- SafetyLink (FS-EX2505): 1 in (25.4 mm) polyester webbing, adjustable from 3 ft (0.91 m) to 6 ft (1.83 m), with ANSI standard approved snap hooks.
- Turnbuckle (019-8036): Jaw and Jaw 5/8 in (15.88 mm) forged galvanized steel, adjusts from 18 in (457.2 mm) to 28 in (711.2 mm).
- 42 in. Stanchion (019-8038 / 019-8046): Designed for I-beams from 4" to 18" (019-8038) and 4" to 24" (019-8046).
- Stoplink Brake V2 (019-8044): In-line energy absorber with a built-in tension indicator (green: 0-60' span, yellow: 60' or greater span, red: tension too high).
- Cable (FS-EX2500-GA): 5/16 in (7.94 mm) 7 x 19 galvanized aircraft cable. Minimum two (2) cable fist-grips used to secure ends.
- Snap hooks and Carabiners (FS1015): Self-locking, ANSI Z359.12-2009 standard, with minimal tensile breaking strength of 5,000 lbs (2267.96 kg) and 3,600-lb (1632.93 kg) gate rating.
- Retractable (SRL): Compatible with any Class A or Class B Self Retracting Lifeline, including competitor models.
Usage Features:
- Installation: PVC sleeves are cut to 12 in (304.8 mm) and cast into freshly poured concrete. Aluminum posts are inserted into the sleeves. The horizontal lifeline is generally attached to posts before insertion into column tops.
- Tensioning: Initial tension is created using either the Come-A-Long or a Turnbuckle. The Stoplink Brake's tension indicator (green, yellow, red) guides proper tensioning.
- Single-Point Anchorage: The Whizzler (FS-EX2514) allows 360° work activity. Single-point anchorages should not be used at the edge or corner of the deck.
- Subdued Edge Gauge: A tool for determining if a defined contact edge is suitable for use with a Subdued Edge SRL. The gauge helps users quickly assess if an edge falls within allowable parameters, specifically for wood edges.
- Clearance Requirements: Detailed tables provide minimum clearance distances for various lifeline spans and number of users, both for standard and leading edge SRLs, and when using 42-inch stanchions.
- Multiple Spans: Intermediate anchorage connectors can be used for total system lengths over 65 ft (19.81 m) to reduce required clearance by decreasing span length.
- Swing Fall Prevention: Users are instructed to minimize swing falls by working as directly below the anchorage point as possible.
Maintenance Features:
- Pre-Use Inspection: Users must inspect the entire system and its subsystems before each use. This includes checking the Stoplink Brake (no more than 6 in (152.4 mm) of web extended), snap hooks and carabiners (self-closing, locking), SRL operation (engaging locking mechanism), webbing (tears, cuts, fraying, abrasion, discoloration), cable (kinks, broken strands, corrosion, abrasion), and proper tensioning.
- Annual Inspection: A "competent person" must conduct a formal inspection at least annually, or more frequently if required by manufacturer's instructions. This inspection verifies the equipment's safety and includes checking for illegible markings, defects in hardware, evidence of damage, alterations, or improper function of mechanical devices.
- Post-Fall Protocol: If a fall occurs on the SafeLink System, the system must be immediately removed from service. Any equipment with a deployed fall indicator must also be removed from service.
- Storage: The SafeLink System should be stored in a cool, dry, clean environment, out of direct sunlight, when not in use.
- Repairs: Only Safewaze, or persons or entities authorized in writing by Safewaze, shall make repairs or alterations to the equipment.
- Training: All users must be trained in the correct installation, use, and maintenance of the equipment. Training should be provided on a periodic basis to ensure user proficiency.
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