_LTSR_2014.QXD_LTSR_062006(b).QXD 11/14/13 12:20 PM Page 43 Technical Annex CHART III International Protection (IP) Ratings to IEC 262 The standard EN 50 262 was issued on 01.04.1998 and published in April 1999 in Germany as DIN-EN 50 262/VDE 0619. The well-known standards for cable glands, such as DIN VDE 0619 (VDE 0619): 1987-09, DIN 46 319: 1989-12, DIN 46 320-1: 1985-09 and DIN 46 320-2...-4: 1973-01 etc, are only applicable until 31.12.1999. Approved technical drawings using these standards are valid until 01.03.2001. 1.) Fields of application for standard EN 50 262: This European standard contains the requirements and tests for the construction and design of metric cable glands. This standard covers the cable gland as a complete part, but not the parts of cable glands. 2.) The screw-in thread of cable glands must be constructed according to chart 1 of EN 60 423. The dimensions of the thread are M6x0,75; M8x1; M10x1; M12x1.5; M16x1.5; M20x1.5; M25x1.5; M32x1.5; M40x1.5; M50x1.5; M63x1.5 and M75x1.5. 3.) The mounting holes must be dimensioned according to Chart A. 4.) Cable glands must be able to guarantee the retaining power for cables and conduits for the complete sealing section. Cable glands with traction relief for cables and conduits must free the conduits from the load of tension and twist. The tests are carried out, with in each case the smallest and largest mentioned value of the seal resp. tension relief section of the according loads and torque values in Chart B. These tests are performed with test pins reproducing the outer diameters of the cables and conduits. The test pins consist of a metal rod with an elastomere sheath. 5.) Cable glands must be impact resistant. A test pin according to the smallest value of the sealing section is fastened to the test probe and then the test is carried out a lowest temperature according to the energy in accordance with category of Chart C. All specifications, charts and values are excerpts from standard DIN 50 262. Obviously further tests (electric properties, IP-Code etc.), which are necessary to classify and mark cable glands are described in this standard. It would although go beyond the scope of this catalogue. Chart A: Mounting holes for cable glands Thread size 12 Diameter of M12 Mounting hole + 0.2/- 0.4 mm 12.5 16 M16 20 M20 25 M25 32 M32 40 M40 50 M50 63 M63 16.5 20.5 25.5 32.5 40.5 50.5 63.5 Chart B: Tensile load for retaining power and tension relief, torque for turning tests Cable and Conduit diameter Retaining Power Tensile relief Type A [mm] [N] [N] thru 4 5 > 4 thru 8 10 30 > 8 thru 11 15 42 > 11 thru 16 20 55 >16 thru 23 25 70 > 23 thru 31 30 80 > 31 thru 43 45 90 > 43 thru 55 55 100 > 55 70 115 Chart C: Value for impact test Categorie Load [N] Weight [Kg] Energy [J] Height [m] CHART IV 1 2 0.2 0.2 0.1 2 2 0.2 0.5 0.25 3 2 0.2 1.0 0.5 4 2 0.2 2.0 1.0 Tensile relief Type B [N] 75 120 130 140 250 350 400 450 5 10 1.0 4.0 0.4 6 10 1.0 7.0 0.7 Torque Type A and B [Nm] 0,10 0,15 0,35 0,60 0,80 0,90 1,00 1,20 7 10 1.0 10.0 1.0 8 20 2.0 20.0 1.0 Tightening torque for cable glands In casing with female thread or hole with lock nut. Dome nuts may be tightened with max half of the locknut tightening torque according to the chart. Note: The values in the chart serve as a general guideline, the exact procedure depends upon the material. Nominal size Pg 7/M12 Pg 9/M16 Pg 11/NPT3/8 Pg 13.5/M20/NPT1/2 Pg 16 Pg 21/M25/NPT3/4 Pg 29/M32/NPT1 Pg 36/M40 Pg 42/M50 Pg 48/M63 Metal Tightening torque [Nm] 6.25 6.25 6.25 6.25 7.5 10.0 10.0 10.0 10.0 10.0 Plastic moulded parts Tightening torque [Nm] 2.5 3.75 3.75 3.75 5.0 7.5 7.5 7.5 7.5 7.5 Altech Corp.® • 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com 43