Page 11 - 24_DS241_E_0315_Reliable_Power

Integrated arc fault protection concept – DEHNcare ®

®
The personal protective equipment DEHNcare
combines maximum protection and unique wearing
comfort and is tested to international standards. It
consists of a safety helmet for electricians, protective
gloves and a jacket or coat.
®
DEHNcare protective gloves, trousers, jackets and
coats are arc-fault-tested to class 2 (IEC 61482-1-2*)
and certified according to the EEC directive. The
combination of leather and neoprene material and Type Part No.
the high-quality workmanship ensure excellent fit.
The safety helmet for electricians with arc-fault- Safety helmet for electricians 785 705
resistant face shield or the protective hood protects Face shield 785 761
the face and head region from second-degree burns Protective hood 785 760
up to arc fault energies of 315 kJ.
Protective gloves, long, size 10 785 810
APT trousers, size 52 785 782
APJ jacket, size 52 785 772
APC coat, size 52/54 785 756

Requirements on arc fault protection systems with regard to thermal stress
depending on the transformer and tripping time of the protective device

transformer
(kVA)

tripping time of the protective device (ms)

class 2 additional technical
solutions

class 1 DEHNcare gloves, jacket,
®
trousers, coat

Exemplary selection with the following parameters**:
U = 400 V U Nn : nominal system voltage
Nn
u = 6 % u k : relative short-circuit voltage
k
k = 0.25 k p : Relationship between the arc fault power and the short-circuit power in the electrical system at the fault location
p
a = 300 mm a: Distance between the arc fault and the upper part of the body
k = 1 (small volume) k T : The transmission factor describes the spatial propagation of the thermal impacts of an arc fault
T

* IEC 61482: Live working – Protective clothing against the thermal hazards of an electric arc
** This exemplary selection does not substitute a risk assessment according to the German BGI 5188 11