Kroužkové, vidličkové a kolíkové konektory Elpress ...
Poznámky redaktora
Current load should be
checked.
• Greased galvanized screws provide the
least dispersion the pre-tension force. See image
below.
Tightening must carried out con-
trolled manner using torque tools, where
the relevant screw tensioned the
specified torque. The clamping force
of properly tightened screw shall create a
contact area large enough ensure good
conductivity, without the risk overhea-
ting.
Cu/Al provides low risk galvanic
corrosion when the rail made Al.
Al/Al gives weaker joint. a
spring washer type DIN 6796,
with very high clamping force, is
positioned and secured between e.
Bolt joint with spring washer.
• Torque wrenches must calibrated
regularly.8 *
Steel
8.
Even the torque recorded correctly,
the pre-tension force depends entirely on
the friction. The joint must achieve
a sufficiently high clamping force, distribu-
ted desirable manner and ensure the
electrical properties over very long time
under high and varying loads different
characteristics. These are
based theoretical calculations, verified
tests and experience from field studies. This especially im-
portant for aluminium.
nut and the hard flat washer, can
provide increased margin towards
excessively high settlement.8 *
Steel
10. The flat washer must have an
external diameter least large the
tension washer. Oil the screw when installing.8 *
Steel
8. Tension was-
her flat washer can reduce the risk
of settlement. This applies regardless the hard-
ness the conductive materials (which
are softer than HB200). It
must never placed
directly against electrical
contact surface without flat washer in
between.
Tension washers
The use different types locking
elements spring washers often
increases the risk settlement. The information below general
and hence, should never seen an
installation instruction.
Cu/CU provides the best joint, good
contact and small risk settlement. important to
clean and use contact grease.9 *
Steel
10.
The diameter the tension washer
should less than equal the flat
washer’s, even after tightening fully. very important fol-
low the installation instructions. The installation
of terminal with bolt joint for electrical
transmission requires special attention.
Otherwise, the risk settlement the
outer edge the flat washer increases
where the clamping forces are concen-
trated. terminals the same size on
the same screw.
Bolt joints. Surfaces that are
tinned, nickel-plated, silver plated must
not brushed.g.
• Choose stainless A4-80 environments
when there high risk corrosion.12:6
Bolt joints
Bolt joints
Users/installers bolted connectors
always have adhere to, and follow
electrical codes and norms the local
region where they are making such instal-
lations.
• Petroleum jelly contact grease reduces
corrosion risk cleaned surfaces
Fastener selection:
• Screws and nuts strength class 8.
• The terminal palm and busbar may of
different materials.9 *
Stainless Stainless *Stainless *
- P
M5 5,5 6,6 118,0 8,0 9,2 164,0 5,5 6,2 111,0
M6 9,5 9,2 114,0 13,0 13,0 160,0 9,5 8,6 107,0
M8 23,0 17,0 116,0 32,0 24,0 164,0 22,0 16,0 109,0
M10 45,0 27,0 92,0 64,0 38,0 129,0 45,0 25,5 88,0
M12 78,0 40,0 125,0 110,0 56,0 175,0 76,0 37,0 116,0
M16 200,0 75,0 156,0 280,0 110,0 229,0 185,0 69,0 144,0
Mv tightening torque (Nm)
Ff pre-tensioning force (kN)
p flat pressure (N/mm²)
FZB electroplated gloss chromed
FZY electroplated hard chromed
FZM FZM= mechanically galvanized
* (FZB, FZY, FZM)
A4/80
Selection washers:
• Always select hard flat washers the
BRB, HB200 type.
Installation:
• The screws must tightened with tor-
que tools that tightening is
controlled.8.
• The tension washer can normally be
excluded.
• spring washer sufficient and should
be placed the rear the
busbar, between nut and hard flat
washer, see diagram.
Preparatory:
• Clean contact surfaces from dirt, oxide
layers and grease using steel brush and
denatured alcohol.
• Tightening torque according the table
above. tension washer type DIN
6796 used, must placed between
the screw head/nut and the flat washer. Accuracy better than ±5%. Otherwise, there is
risk large deformation the conducting
material that reduces the tension, which
can increase the risk inadequate contact
area and overheating.
Mounting the terminal against
the connection rail
Max. When using spring washers, is
sufficient and preferably placed on
the opposite side the terminal.9 *
Steel
10. order for the clamping force be
distributed evenly and create sufficiently
large contact area, hard flat washers must
always used, type BRB HB200 SMS 70,
under screw head and nut.
.
Al/Cu gives higher risk corrosion
and settlement, use contact grease.
Recommended tightening torque
Thread
Steel
8. It
is important that this done correct
manner, important the contact
crimping the other end the terminal
as described above. The accuracy the tool
is great importance
