When it comes to working at heights, safety harnesses are a crucial piece of personal protective equipment (PPE). They provide a means of fall protection by distributing the force of a fall across the body and preventing the worker from hitting the ground. There are several types of safety harnesses available, each designed to meet specific needs and requirements. Let's explore some of the different types:
Full-Body Harness
A full-body harness is the most common type of safety harness. It is designed to distribute the force of a fall across the shoulders, chest, waist, and thighs. It consists of straps that wrap around these body parts and typically includes shoulder and leg straps, a dorsal attachment point at the back, and front attachment points for connecting lanyards or other fall protection devices. Full-body harnesses provide maximum protection and are suitable for a wide range of working at height scenarios.
Suspension Harness
Suspension harnesses are specifically designed for work tasks that involve prolonged periods of suspension, such as window cleaning or tower crane operation. These harnesses have additional padding and support in the leg straps and waist belt to increase comfort during extended suspension. Suspension harnesses often include accessories like tool loops or pouches for convenient access to tools and equipment.
Tower Climbing Harness
Tower climbing harnesses are designed for workers who regularly scale telecommunication or utility towers. These harnesses feature extra support and padding to handle the unique challenges of tower climbing, such as ascending and descending ladders and working on narrow platforms. They typically have a front D-ring for fall arrest, multiple attachment points, and additional features like accessory loops and gear holders.
Positioning Harness
Positioning harnesses are primarily used for work tasks that require the worker to be supported in a specific position for an extended period, such as construction or maintenance work. These harnesses have side D-rings or positioning loops on the waist belt, which allow workers to be suspended securely while maintaining hands-free operation. Positioning harnesses are commonly used in conjunction with work positioning lanyards or restraint systems.
Chest Harness
A chest harness, also known as a chest ascender, is used in conjunction with a sit harness (a simple harness that supports the hips and thighs) for activities like rock climbing or caving. The chest harness provides additional upper body support and assists with ascending or descending vertical or near-vertical surfaces. It is important to note that a chest harness alone is not suitable for fall arrest protection and should always be used with a sit harness.
Rescue Harness
Rescue harnesses are specifically designed for emergency situations and evacuation procedures. They are equipped with additional features like built-in retrieval or rescue attachment points, shoulder and leg padding for comfort during prolonged suspension, and quick-connect buckles for rapid donning and doffing. Rescue harnesses are essential for workers who may need to perform rescues or be evacuated from heights in hazardous situations.
When selecting a safety harness, it is crucial to consider factors such as the nature of the work, the duration of the task, comfort requirements, and applicable safety regulations. It is also essential to ensure proper fitting and regular inspection of the harnesses to maintain their integrity and effectiveness in protecting workers at heights.