The problem both standards address
Climbing a fixed ladder, a tower or a vertical structure is one of the most common work-at-height tasks on industrial sites. It is also one of the most exposed: the climber needs both hands and feet for the climb and cannot easily stop to move a lanyard from one anchor to the next. A vertical fall arrest system solves this by giving the climber a continuous anchor line running the full height of the climb.
The device that connects the climber to that line is called a guided-type fall arrester. It runs along the anchor line, follows the user up and down, and locks automatically on the line if the user falls. EN 353 is the European standard series for these devices, and it has two parts.
EN 353-1: rigid anchor line
EN 353-1 covers guided-type fall arresters including a rigid anchor line. The current edition commonly referenced is EN 353-1:2014+A1:2017. A rigid anchor line is one that is fixed to the structure so that it cannot move freely sideways. In practice this is typically a rail, or a wire rope secured to the structure at intervals, running alongside a fixed ladder or climbing route.
Because the line is part of a permanent installation, EN 353-1 systems are typically used where people climb regularly, such as access ladders to roofs, silos, tanks, stacks, towers and plant platforms. The fall arrester and the anchor line are designed to work together as a system.
EN 353-2: flexible anchor line
EN 353-2 covers guided-type fall arresters including a flexible anchor line. The edition commonly referenced is EN 353-2:2002. Here the anchor line is a rope, such as a synthetic fibre rope or a wire rope, attached to an anchor point at the top. It is not fixed to the structure along its length.
Flexible line systems are often used where a permanent installation is not practical, for example for temporary or occasional access, maintenance tasks on a structure, or work positions that change. Because the line is flexible, factors such as the line’s movement, the anchor point above and the clearance below need particular attention.
Side-by-side comparison
| Aspect | EN 353-1 | EN 353-2 |
|---|---|---|
| Anchor line | Rigid: a rail, or a wire rope fixed to the structure | Flexible: a rope attached to an upper anchor point |
| Typical installation | Permanent, along a fixed ladder or climbing route | Often temporary or semi-permanent |
| Typical uses | Regular access ladders, towers, silos, stacks, platforms | Occasional access, maintenance tasks, changing work positions |
| Edition commonly referenced | EN 353-1:2014+A1:2017 | EN 353-2:2002 |
| Key point | Use only the fall arrester specified for that anchor line | Use only the fall arrester and rope combination specified by the manufacturer |
Why the fall arrester and line must match
Under both parts, the fall arrester and anchor line are treated as a combination. A fall arrester that works on one manufacturer’s rail or rope may not lock correctly on another’s, even if they look similar. Mixing components can compromise the system. Always use the fall arrester specified in the system’s user instructions, and replace parts only with approved components.
How to choose between them
The choice is rarely about which standard is “better”. It depends on the site and the task:
- Frequency of use: routes climbed daily or weekly usually justify a permanent rigid line; occasional access may suit a flexible line.
- The structure: a fixed ladder or a tower with suitable mounting points lends itself to a rigid line, while a structure with only a top anchor point may point towards a flexible one.
- Number of users: check how many users the system allows at the same time.
- Environment: corrosion, heat, dust and chemical exposure affect material choice and inspection frequency.
- Rescue: plan how a worker who falls on a vertical line will be recovered quickly.
- Exits and transitions: consider how the climber stays protected when stepping on or off the ladder at the top and bottom.
Common problems we see on site
Many of the vertical access routes we assess on Indian sites have some form of protection, but not always one that works as intended. Typical issues include:
- Mixed components: a replacement fall arrester from a different source fitted to an existing line.
- No protection at the top: the line ends below the point where the climber steps off, leaving the most exposed moment unprotected.
- Corrosion and damage: brackets, fixings and lines exposed to weather or process fumes without regular inspection.
- Untrained users: climbers connecting to the line incorrectly, or using a lanyard that was never intended for the system.
- No rescue plan: no agreed method or equipment to recover a worker suspended on the line.
None of these problems is solved by a standard alone. They are solved by correct design, competent installation, training and regular inspection.
How this relates to TsaF systems
Our Vertical Lifeline System is available in rope and rail forms, and our catalogue references EN 353-1:2014+A1:2017 and EN 353-2:2002 for vertical lifelines. Refer to the product datasheet for the standard that applies to each specific product.
Our Flowlok Ladder System provides the ladder itself as a safe means of vertical access. Standards for the Flowlok ladder are confirmed product by product; refer to the datasheet. For an overview of the hazard, see ladders and vertical climbs.
What to ask your supplier
- Which part of EN 353 does the system reference, and which edition?
- Does the certificate or test report name this specific fall arrester and anchor line combination?
- How many users can be on the line at once?
- How does the climber stay protected at the top exit and bottom entry?
- What are the inspection requirements, and who will carry them out?
Plan your vertical access
A well-chosen vertical system protects every climb without slowing the work. Request a site assessment and our engineers will review your ladders and climbing routes and recommend the right approach.
Specifications are indicative. Refer to the product datasheet or ask our engineers for project-specific values.
