20
Data
SMB System C
Handling
Selection and dimensioning
Classification
Temporary edge protection is specified in EN 13374 into three different
classes, depending on the application and the likely load.
• Class A refers to a static load cor-
responding to a person leaning
against/holding the edge protection
or walking/stumbling against the
protection.
• Class B refers to a static and low
dynamic load corresponding to a
person leaning against/holding the
edge protection or walking/stum-
bling against it or falling against the
protection down a sloping surface.
• Class C refers to a high dynamic load
corresponding to a person falling
down a steeply sloping surface
Each Class is recommended for use with a range of roof slopes and
potential fall heights.
• Class A recommended for a work-
ing surface with a slope of
α
,
that is 0 – 10°.
• Class B recommended for a work-
ing surface with a slope of
α
,
that is 0 – 30°, or up to 60°, if the fall
height, Hf, does not exceed 2.0 m.
• Class C recommended for a work-
ing surface with a slope of
α
,
that is 30 – 45°, or up to 60°, if the
fall height, Hf, does not exceed 5.0 m.
Select products taking the needs of the workplace into consideration.
Some products can be used in several classes, but the conditions for
their usage then vary.
