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 For use in hazardous areas Ex zones 1 and 2
(gases, vapours, mists) as well as Ex zones 21
and 22 (dusts)
Tested according to explosion group IIB
Time-saving installation - no need to deactivate
systems/areas for welding or drilling
works
So far equipotential bonding and lightning equipotential bonding of
pipes in explosion-hazardous areas has been implemented by means of
welded or threaded bushing connections. Using clamps was only permitted
if evidence of no ignition sparking in case of lightning current loading
was provided. Such proof has now been rendered for a pipe clamp by
DEHN.
In compliance with and tested according to EN 50164-1 title
English: Lightning Protection Components (LPC) - Part 1: Requirements
for connection components in a potentially explosive atmosphere
(clamps and connectors), the sample passed the test for no occurrence of
ignition sparks at a lightning current loading of up to 50 kA (10/350 ��s).
This novel, patented pipe clamp for hazardous areas not only ensures the
safe electrical contact by means of two contact clips, but also the
adequate mechanical fixing by an electrically insulated clamping body.
The Ex pipe clamp provides following connection possibilities:
- Round conductors made of Cu, St/tZn, Al, StSt with O8 mm or
stranded copper conductors, cross section 16-35 mm2, with E-Cu
crimping cable lug (DIN 46235)
- Flat copper conductors with minimum dimensions of 20x2.5 mm and
a bore of O10.5 mm
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Datasheet
Ordering Information
Type EX BRS 27 - 540 821
Type EX BRS 90 - 540 801
Type EX BRS 300 - 540 803
Type EX BRS 500 - 540 805
Separate clamping body - 540 810
Tensioning Strap - 540 901
DSFS - 920 000
Pipe Clamps for Roof Poles - 410 212 and 410 300
Conductor Holders for Roof Poles - 425 076 and 425 089
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