Cables
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Flexible power and control cables Manufactured by Cavotec Group

Who we are Cavotec is a multi-national group of companies serving the following industries: mining and tunnelling, ports and maritime, steel and aluminium, energy and offshore, airports, general industry and automation. In the early 1960’s our main focus was the design and production of motorised cable reels primarily for manufacturers of tower cranes, harbour cranes and mining equipment. Today, Cavotec is connecting mobile equipment around the world in many diverse applications. Where we are The Cavotec Group consists of 7 manufacturing “Centres of Excellence” located in Canada, France,...

Flexible power and As shown here the Cavotec Group is organised to support its customers around the world through its manufacturing units and sales companies. Each Cavotec manufacturing company, no matter where it is located, aims at being a market leader in its field by providing innovative and reliable products to Group customers. Each Cavotec sales company, in the 27 countries where they operate, aims at better serving its local market following the Group philosophy “to be local everywhere”. * Branch Office Manufacturing network Centres of Excellence France Cavotec RMS Spring Driven...

4 • Flexible power and control cables

Flexible power and How to choose the right cable for the job LOW VOLTAGE Panzerflex® 1kV low voltage power cable Panzerflex® 1kV low voltage control cable Panzerflex® VS Tratospur-M Buflex-M Basketheavyflex® CraneMAX Goreflex Cordaflex (SMK) BC418/419 MEDIUM VOLTAGE Panzerflex®-L Panzerflex-L FO Tratosflex-ES Tratosflex-ES FO Tratosflat FO Protolon (SMK) LWL CraneMAX Crane MAX FO Comparison between metric cross-section and AWG numbers

6 • Flexible power and control cables A large, high speed Cavotec Specimas cable reel mounted on a coil handler running at 180 m/minute. Festoons Cable winding reels Cable tender systems Guide pulley system Pendant push buttons Cable laid on ground or in conduit Vertical cable with guide Operating speed (m/min.max)* 180 180 120 120 120 240 120 — PANZERFLEX PANZERFLEX - FO (minimum temp. - 20°C) ® ® PANZERFLEX - K (minimum temp. - 40°C) ® PANZERFLEX - VS (minimum temp. - 20°C) ® BASKETHEAVYFLEX (minimum temp. - 20°C) ® TYPE OF CABLE TYPE OF CABLE APPLICATION Main use Suitable To illustrate...

Flexible power and Table 2: Minimum bending radius Bending radius and overall diameters Precise calculation of the bending radius is a determining factor for cable reliability. A decrease in minimum bending radius has a major effect on the life of a cable because it causes stretching and internal distortions. Another important factor is the frequency of the cable movements. If movement is slow and infrequent a tighter bending radius can be considered. Special attention should be taken for installations with pulleys or guide-rollers. Special attention should also be paid to installations...

8 • Flexible power and control cables Other systems of cable movement The systems most frequently employed are perhaps cable tender systems, pulley systems and cable chains. The first two systems involve high tensile stress whereas the third on a whole does not. Particular attention must be paid to the minimum bending radius and to the distribution of loads between the cables and cable tenders. Cables with a greater cross section should bear the loads and not the control cables that may be present. Guide pulley and anchoring devices. When designing these components, care must be taken to...

10 • Flexible power and control cables Voltage drop The voltage drop should not only be checked for low voltage but also for medium voltage applications. The value is calculated by multiplying the factors K (mV/Am) given in table 5 with the current capacity I (A) of the cable and by the length of the connection L (km). This calculation is valid with sufficient approximation for all voltages where: conductor temperature = 80C; cos 0,8; frequency = 50 Hz. Voltage drop (V) = I(A) x L (km) x K(mV/Am). The factors have been calculated using the formula: K(mV/Am) = 1,73 x (R cos X sen j) where:...

Flexible power and Thermal limit in case of short circuit In accordance with VDE Standard 0250 c. 8/75 the admissible thermal limits for short circuit current in heavy cables must be calculated using the following reference values: • Initial temperature: 80°C (cable under full load) • final short circuit temperature: 200°C The short circuit currents (thermal limit) given in table 6 have been calculated using these reference values and are valid for a base time of 1 second. For other time periods, taking into account the protection characteristics of the machine, the value in the table must...

12 • Flexible power and control cables

Flexible power and Number of Number of cable cores cable cores 3 + 3 4 Nominal Max. overall Net weight Max. overall Net weight cross section diam. diam. mm2 mm kg/km mm kg/ 1,5 – – 14,3 280 2,5 – – 17,2 410 4 – – 20,0 550 6 – – 21,5 680 10 – – 25,5 1030 16 – – 30,0 1470 25 – – 35,0 2130 35 – – 39,0 2750 50 (10)* 44,5 3310 44,5 3700 70 (16)* 49,3 4340 49,0 4840 95 (16)* 52,3 5500 56,5 6470 120 (25)* 59,4 6970 63,2 8280 150 (25)* 61,5 8130 68,7 9950 185 (35)* 67,2 9820 74,9 11800 240 (50)* 76,1 12680 10 (2,5)* 16 (2,5)* 25 (2,5)* 35 (2,5)* Applications Panzerflex® special flexible heavy duty...

Nominal Max. Net cross section overall diam. weight Safe n x mm2 mm kg/km 7 x 1,5 19,1 490 12 x 1,5 22,3 680 18 x 1,5 25,3 890 24 x 1,5 29,4 1140 30 x 1,5 31,5 1360 36 x 1,5 33,5 1540 7 x 2,5 21,2 660 12 x 2,5 24,8 910 18 x 2,5 30,2 1270 24 x 2,5 33,6 1680 30 x 2,5 35,4 1890 36 x 2,5 38,4 2250 7 x 4 24,2 890 12 x 4 28,6 1280 18 x 4 34,3 1840 19 x 2,5+5 x 1 (C) 34,0 1650 19 x 2,5+5 x 1,5 (C) 34,0 1680 25 x 2,5+5 x 1,5 (C) 36,0 1890 14 • Flexible power and control cables NZERFLEX 6 5 4 3 1 7 8 9 17 12 65 2 1 Applications Panzerflex® special, flexible control cables have been developed for use...