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1912

Insulated conductor system U20, U30, U40 - 19699 INSULATED CONDUCTORS

General

VAHLE insulated conductors are designed in accordance tointernational safety regulations for a multitude of power supply applications. They fully meet VDE 0100 and are finger safe to EN 60529 (VDE 0470, part 1, protection code IP23). They are UL, SAAand SEV approved.For current collectors touch protection is only given if carbonbrushes are fully entered into the conductors. Conductor installa- tions in the reach of hand, where collectors leave the conductor rails during normal operation, must be protected against acci- dental touch by the customer e.g. switch-off or separation. Thisrefers to voltages above 25 VAC resp. 60 VDC, only.The adjacent picture demonstrates that the VDEtest finger cannot reach live conductors – finger safety is guaranteed.For high voltage applications we do recommendour adequate high voltage insulators but applica-ble international or local safety requirementshave to be considered.The shrouding which envelops the various con-ductors is an excellent insulator. There-fore ourunipole insulated conductors guarantee utmostsafety in operation.The ground conductor is identified by internatio-nal colour coding.For obvious safety reasons phase and groundcollectors are not interchangeable.Any number of conductors can be accomplishedby installing various powerails side by side. Forextra space saving multiple compact hangers see page 15 and 29.Standard rail sections are 6 m long, shorter lengths to coincidewith your runway requirements are available.

Insulators

Insulators are recommended for difficult vironmental conditions (extreme humidity, chemicals etc.) See pages 14, 28, 39 for electrical and mechanical properties of our standard insulators.Further types, also for high voltage, are available upon request.

Rigid joints

Splice joints are designed to rigidly join conductor bars and pro-vide mechanical and electrical continuity of the conductor rail system. They include insulated protection covers.

Expansion joints

In order to accomodate the effects of temperature change and for system runs exceeding 100 m (330’) it is necessary to provi- de expansion joints.

Feed terminals

Feed terminal clamps are preferably installed at rail joints. Ade- quate single core feed cables shall be provided for connection of the incoming power to the conductor rails.

End caps

The open ends of unipole conductors are closed by end caps.

Collectors

The current collectors are made of reinforced polyamid andstainless steel parts. These spring loaded units provide positivecontact with the conductor bars and have one or two pick up brushes.

Hangers

Support brackets will be prepared in accordance to your local requirements or provided by others considering your runway system configuration.

Transfer guides

Unipole and multiple transfer guides are available for spurlines,turntables and switches or other transfer applications.

Rail holders Isolating sections

Spacing between rail holders is 1 m for U 20, 1.5 m for U 30 and 2 m for U 40 rails – in curves max. one half of these intervals.Use insulated hangers or insulators with rail holders for all out-door installations. Accurate installation of the rail holders and hangers is important thus allowing the conductor rails to expand and contract. Anchor points are required to permanently fix, with respect to the runwaytrack, the mid-point of the run or between adjacent expansionjoints, in order to permit symmetrical expansion and contractionon both sides of the anchor point. Conductor isolating sections are available for sectionalizing con-trol circuits, maintenance bays etc. (see pages 13, 27, 38).

Curves

Factory fabricated or field prepared radius bends can be used for horizontal or vertical curves.

Insulating covers

Standardshroudingcolour greenHigh temp.shroudingcolour grey

Resistance to chemicals for both covers:

Resistant to gasoline – mineral oil – grease – hydrochlorid acid (concentrated) – 50% sulfuric acid – 50% caustic soda. Electrical properties: dielectric strengthDIN 53 481specific resistanceDIN 53 482surface resistanceDIN 53 482leakage resistanceIEC 112 / VDE 0303

Water absorption:

15 17 max. at 100°C – 1% max. at 20°C – 0.06% Ohm/cm10 Ohm/cm10
13 15 Ohm5 x 10 Ohm45kV/mmCTI 600-2.775 N/mm Mechanical properties: flexible strengthtensile strength
2 2 ±10%50 N/mm ±10%50 N/mm Please consult factory for galvanizing plants and pickling lines as well as low voltage applications, indicating spe- cial environmental data.To speed up quotations and order processing, we wouldappreciate receiving your drawings or sketches for sys-tems with curves, dead sections, turntables, switches etc.Please use our questionnaire, pages 44/45.
2 2 ±10%–30°C/+55°Cclass B1no flaming particles, self extinguishing–30°C/+80°C95 N/mm ±10%CTI 600-2.7 Temperature resistance:* flame test proofper DIN 4102part 1 30-40kV/mm5 x 10

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Special high temp. shroud for –30°/+100°C available; please consult the factory.