ISO 8205 pdf free download

ISO 8205-2021 pdf free download.Resistance welding equipment一 Water-cooled secondary connection cables.
11.2 Leak tightness and pressure resistance of the water circuit
Supply the water circuit, sealed downstream of the cable (e.g. by closing the valve on the right-hand side
of Figure 1), under a pressure of 0,75 M Pa (7,5 bar), e.g. by adjusting pressure-reducing valve 1, for 6 mm.
11.3 Water flow
Carry out this test successively:
— with the cable laid flat out straight on a horizontal surface [see Figure 4 a)];
— with the cable placed on a horizontal surface but bent with a radius of curvature ot 301) mm Isee Figure 4 b)];
— with the water circulating in the cable, e.g. by opening both valves (see Figure 3, item 2) adjust the pressure less to 0,07 MPa (0,7 bar) for an upstream pressure greater than or equal to 0,1 MPa (1 bar).
Measure the water flow using a suitable flow transducer (see Figure 3, item 3).
11.4 Verification of flexibility at ends
11.4.1 General
Carry out this test on a low-reactance cable with a cross-sectional area of 200 mm2 and length of 2 500 mm, considered to be representative of cables of the same design with a cross-sectional area or length as specified in double conductor connection cables and single connection cables.
11.4.2 Fixing of the cable
Fix the cable by one of its end lugs to a device fitted with horizontal and vertical graduated rules for measuring the coordinates of a point, in such a way that its other end hangs free (see Egure.S).
Carry out the test for each of the two ends of the cable.
11.4.3 Measurements to be taken
Using the two graduated rules, measure the ordinatey at each of the points A, B and C with x (equal to 0 mm, 150 mm and 300 mm, respectively). The origin A of the coordinates is the point of intersection of
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Iso 8205:2021(E)
the axis of the fixing hole in the end lug with its median piano; points B and C are located on the axis of the cable (see figure 5).
11.4.4 Interpretation of results
Determine the arc of the circle passing through the three points A, B and C by geometrical construction. The radius of the arc shall be regarded as the radius of curvature -(see Figure 5).
NOTE If the ordinate of point C is greater than 0,30 m, the radius of curvature is regarded as being less than 0,30 m provided that the ordinate of point B is different from 0.
11.5 Torsion
11.5.1 General
Carry out this test on low-reactance cable with a cross-sectional area of 200 mm2 and length of 1 250 mm, regarded as being representative of cables of the same design having a cross-sectional area and length as specified in double conductor connection cables.
11.5.2 Test rig
Suspend the cable vertically, with the end lug by which it is suspended, immobilized as regards rotational and translational motion. Apply a force of 500 N ± 50 N to the lower lug of the cable by means of a rotating fork coupling and a pressure cylinder. Fill the cable with water at a pressure of 0,15 MPa (1,5 bar) (see Figure 6).
11.5.3 Measurement to be taken
Measure the torque required to effect 180° rotation in each direction of the lower lug.ISO 8205 pdf download.