work techniques difficult access

8/3/2019 Work Techniques Difficult Access

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t e c h n i q u e s

Rope access and conned space

Rope access

This progression technique is used when there is nocollective protection (railing, protective nets, etc.)or when overhanging structures or worksites do notallow for mobile platforms, outdoor scaffolding, etc.to be used. This is also the case for temporaryoperations where it is not practical to set upcollective protection.The work area is accessed with ropes by operators

specialized in rope access techniques. A site can beaccessed from the top (safer and simpler to set up,this is the technique of choice), or from below(for example, a leader throws a rope up and around afixed point, and then climbs up the rope, or he usesmountaineering progression techniques). Once theleader has installed all the progression and safetyropes, the other workers can safely climb up theseropes.

Confined spaces

Work done in confined spaces carries specificadditional difficulties related primarily to the lackof space and to the lack of means of autonomousprogression. Besides, the worker may face numerousadditional constraints: length of the intervention,air quality, temperature, etc. Since he cannot moveabout or ensure his own safety, someone working inthis type of environment must have assistance.Confined spaces are generally accessed from the top.The worker’s safety is ensured by a reversible haulingsystem, which is independent and reliable, allowing aquick evacuation in case of an accident.

A ALVEO BEST: lightweight and durablehelmet for work at height with strong chinstrap to limit risk of the helmet coming offduring a fall.

B NAVAHO BOD CROLL FAST: workpositioning and fall-arrest harness adapted toworking in suspension, with integrated ventralCROLL rope clamp for ascending the rope.

C ASCENSION: ergonomic handled ropeclamp for rope ascents, in right or left handversions.

D RIG: compact self-braking descenderwith integrated blocking function for easypositioning at the work station (expert usersonly).

E ASAP: mobile fall-arrest system forinstallation on a rope, functions without anyintervention by the user.

F PARTNER: ultra-compact, high efficiencypulley can be worn on the harness for routinejobs.

G PODIUM: seat designed for prolongedsuspension.

H PARALLEL : 10.5 mm diameter rope fordifficult access.

All equipment pages 40 to 149.



CROLL

ASCENSION

ASAP

I'D

ASCENSION

I'D

ASAP

PANTIN

ASAP

CROLL

ASCENSION

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ASAP

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t e c h n i q u e s

Rope access

Installing ropes and anchorsEqualizing the anchors

Protecting and redirecting ropes

Installing the anchors

Ascending a long distance of rope (handled ascender - chest rope clamp)

AscendingAscending a short distance of rope Ascending a long distance of rope with the PANTIN foot-mounted rope

clamp (alternative technique)

I n f o r m a t i o n i s n o n - e x h a u s t i v e .

R e f e r t o t h e o t h e r p a g e s a s w e l l a s t o t h e u s e r i n s t r u c t i o n s a n d t e c

h n i c a l m a n u a l s .

T e c h n i c a l t r a i n i n g i s e s s e n t i a l .

Descent Vertical work positioningBe certain to lock the device into workposition mode

Working with sharp objectsor molten metal splashThe descender is extended witha cable lanyard (25 - 30 cm).

The user should be ableto easily manipulate thedescender and positiona rope clamp above it.



I'D

GRILLON

LOOPING

MINDER

TWIN

I’D

PAW

PAW

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t e c h n i q u e s

Rope access Conned spaces

Moving along an overhang with etriersAscending (continued)Accessing from below when installing the ropefrom above isn’t possible

Combined lowering/raising system• advantage: quick transitions (lowering/raising)

• disadvantage: the length of the rope is four times the travel distance

Independent lowering/raising systems• advantage: the length of the rope equals the travel distance

• disadvantage: transitions are more complex (lowering/raising)

AscentDescent

AscentDescent

I n f o r m a t i o n i s n o n - e x h a u s t i v e .

R e f e r t o t h e o t h e r p a g e s a s w e l l a s t o t h e u s e r i n s t r u c t i o n s a n d t e c

h n i c a l m a n u a l s .

T e c h n i c a l t r a i n i n g i s e s s e n t i a l .

work techniques difficult access

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