Page 138 - IGUS ECS CATALOG

Distribution rules | Cables and hoses

Round electrical cables
For electrical cables, the round cable is a safe, simple and cost-eff ective solution for e-chain
systems ® . We recommend the following criteria for selecting the proper round electrical cables:
● Small minimum bend radii and mounting heights ● Long service life at minimum bend radius ●
Service life expectations for your application (short or long travel, hanging) ● Test data on service
life from realistic tests ● Uncomplicated installation process - no hanging, laying out, etc. of cables
● Strain relief integrated directly into the mounting bracket ● Flexible shields for shielded cables ●
Abrasion-resistant and nonadhesive outer jackets ● Large selection to avoid expensive custom
designs. For bus cables and fi bre optic cable, special attention must be paid to how eff ective
transmission rates and shielding remain after millions of cycles at the minimum bend radius.
Installation and strain relief for round electrical cables
No more corkscrewing with 1) Cables must be laid straight, without any twisting. Cables must not be uncoiled from the top of
igus ® e-chain systems ® the spool. igus ® chainfl ex ® cables are immediately ready for placement directly into the e-chain ® .
They need not be disconnected or laid out before installation.
2) The cables must be laid so that each individual cable can move freely from side to side.
3) The cables must be able to move freely along the radius. This must be double-checked if the
upper run operates at the cable’s maximum bend radius.

4) The division of the e-chains ® interior using
igus ® interior separators or shelves is necessary
if several cables and/or hoses with varying
diameters are laid out. It is important to prevent
cables and hoses from tangling.
5) Cables and hoses with diff erent jacket materials
must not be allowed to stick together. If necessary,
they should be separated. igus ® chainfl ex ® cables
can be combined with all others.
6) Round electrical cables must be secured with
strain relief at both ends. In exceptional cases, the
cables may be fi xed with strain relief at the moving
end of the e-chain ® only. A gap of 10-30 times
the cable diameter between the end of the bend
segment and the fi xed point is recommended for
most cables. chainfl ex ® cables can, on the other
hand, have strain relief directly at the mounting
bracket, as testing has confi rmed.
We will be pleased to provide you with
recommendations for complete e-chain
systems ® : bend radii of all cables and hoses,
interior separation and service life are then
optimised.

Cables must be able to bend freely. chainfl ex ® cables can be strain-
relieved directly at the mounting bracket

136 More information  www.igus-asean.com

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