User manual HAWKE 711 EXD IIC ASSEMBLY

[. . . ] Pack the compound between the cores and strands as shown above. 7 for compound preparation details. F With all gaps and voids filled, bring the conductors back together and pack more compound around the outside of the conductors. Tape the conductors together to prevent disturbance of the compound seal. Pass the compound pot over armour grounding device and remove any surplus compound from the top of compound pot and the joint face as indicated. 5 Remove surplus compound 5 5 4 4 3 Remove surplus compound Remove surplus compound 2 1 2 1 H G Place the entry over the compound pot ensuring Locate and hand tighten the sub-assembly and that compound does not cover end of compound pot the entry While holding the entry with a onto spanner/wrench add half a turn to the middle nut Note: If the equipment has a threaded entry it may be Unscrew the sub-assembly and from the advisable to screw the entry component into the equipment entry then remove any surplus compund from to prevent twisting of the cable after step H. [. . . ] Ensure that the middle nut does not rotate when tightening the backnut . Ensure that the deluge seal is pulled into position if fitted. Locate the shroud over the cable gland if applicable. The following instructions are the approved methods of passing drain wires etc. through the compound barrier and should be followed if permitted by cable installation specifications. UNINSULATED EARTH OR DRAIN WIRE PREPARATION 1. 0 INSULATING EARTH OR DRAIN WIRES WITH HEAT SHRINK OR COLD SHRINK TUBING 1. 1 Remove foils and tape level with the metal armour, exposing the uninsulated earth or drain wires and insulated conductors. 1. 2 Pass 100mm length of heat shrink or cold shrink tubing over the uninsulated earth or drain wire until it comes into contact with the foils, then shrink the tubing evenly down onto the drain wire so that no air pockets occur. 1. 3 To insulate the joint between the foils and the tubing a suitable piece of 10mm long shrink tubing or neoprene stretch tubing or a 10mm wide lap of PVC tape may be used. 1. 4 After completing 1. 1 to 1. 4 on each uninsulated earth or drain wire, then carry out instruction B. INDIVIDUAL SHIELDING OR SCREEN PREPARATION 2. 0 INSULATING SHIELDING OR SCREENS WITH HEAT SHRINK OR COLD SHRINK TUBING 2. 1 Unravel one or two groups of wires from the shielding or screen wires, then remove the remainder of the screen wires (See Fig. 2. 2 Pass 100mm length of heat shrink or cold shrink tubing over the shielding or screen until it comes into contact with the foils, then shrink the tubing evenly down onto the drain wire so that no air pockets occur. 2. 3 To insulate the joint between the shielding or screen wires and the tubing, place one lap of PVC insulating tape over the exposed metallic joint. 2. 4 After completing 2. 1 to 2. 3 on each shielding or screen wire. Then carry out instruction B. Metal Armour Sheath Screen Wires One or two groups of screen wires Fig. 2 Metal Armour Sheath Foils Outer Sheath Drain Wire 10mm or Twisted Screen Fig. 4 Insulated Drain Wire or Twisted Screen Fig. 5 Sleeving or Tape AI 389 - Issue A / Page 3 of 4 Epoxy Compound Cure Time Vs. Temperature 90 80 70 60 50 40 30 20 10 0 4 8 12 Time (Hours) 16 Shore Hardness 40 ºC 25 ºC 4 ºC The compound may be adversely affected by some solvent vapours. If such vapours are likely to be present in the vicinity of the cable gland in service, suitable precautions may be necessary. The compound cures at a Shore D hardness of 85, when it can be handled. The compound when fully cured is suitable for use at a temperature range of -60°C to +80°C. Fig. 7 CABLE GLAND SELECTION TABLE Inner Sheath/Cores Max. Over Cores 11. 0 16. 2 24. 9 26. 3 37. 1 47. 8 59. 0 Metal Clad Sheath Min. [. . . ] During periodic inspections the cable glands should be checked externally for tightness and visually inspected for any harmful corrosion. Cable gland installation work should not be carried out on live circuits. SCHEDULE OF LIMITATIONS: 1. The cable glands shall only be used where the temperature at the point of entry, is between -60°C to +80°C or -50°C to +60°C (as marked on the product). The entry thread shall be suitably sealed, in accordance with the applicable installation code of practice, to ensure that the ingress protection and restricted breathing sealing standards are maintained. [. . . ]