TERMINAL AND JOINT BOXES FOR PAPER INSULATED CABLES

Cable accessories

INDOOR CABLE TERMINAL BOX KGTu 10

APPLICATION

Indoor cable terminal boxes are used for terminating three core paper insulated cables, 10 kV (classical or "NON-DRAINING"). They are produced in two variants: protection of cable cores with oil resistance heat-shrinkable tubes or with heat-shrinkable tubes with inner adhesive layer.

CONSTRUCTION

Terminal box is made of glass, which has excellent mechanical and electrical properties and enables control oil level. If required, oil can be poured. Both the caps on the top and metal cone are made of tinned brass. Heat-shrinkable tubes enable good sealing of cable terminal box. Conductor is connected with cable lugs (copper or bimetal). Data for choice of indoor cable terminal box KGTu are shown in the following table.

.

Type

Cross-section (mm2)

Dimensions of sector sections
h b (mm)

Diameter of opening in box (mm)
KGTu - 1 50 70 95 13,38 19,47
14,71 21,70
16,43 24,0
32
KGTu - 2 120 150 185 17,39 26,35
18,69 29,04
20,03 31,13
45
KGTu - 3 240 300 22,38 34,68
23,94 37,81
55

 

OUTDOOR CABLE TERMINAL BOX KGTs 10

APPLICATION

Outdoor cable terminal boxes are used for terminating three core paper insulated cables with copper or aluminium conductor cross-sections up to 240 mm2 and voltage up to 12 kV.

CONSTRUCTION

Terminal box KGTs 10 consists of:

  • Box of aluminium alloy
  • Three glass or porcelain isolators
  • Tined copper or brass cone for sealing cable and terminal box.

Connection conductors and cable connectors can be carried out by soldering or crimping. Terminal box is connected to overhead line conductors or other elements of power construction with special connection clamps. After mounting, terminal box is filled with oil compound. Total mass of terminal box without oil compound and connections elements is approx.13kg..

TERMINAL BOX KGTsz 35 and KGJs 35

APPLICATION

Cable terminal box KGTsz 35 is used for terminating three core power cables with paper insulation and lead sheath over each core cables, with copper or aluminium conductors, 20-35 kV. Cable terminal box KGJsz is used for terminating single core cables with paper insulation, with copper or aluminium conductors for voltages 20-35 kV.

CONSTRUCTION

Terminal Box consist of:

  • Three glass or porcelain insulators
  • Supporter for insulators
  • Cable gland
  • Dividing box

These terminal boxes are filled up with high voltage "NON-DRAINING" oil compound. Both the caps on the top and metal cone are made of tined brass. Connection of the cap to overhead line conductors or other elements of power construction are made with screw clamps, insulated conductors or compression type terminal lugs. The cable cores terminating is carried out by copper or aluminium- copper connectors. These terminal box is proved according to VDE 0278 standard.

 

STRAIGHT THROUGH JOINTS BOXES KS FOR POWER CABLES

APPLICATION

Straight through joint boxes type KS, according to JUS N.F4.031 standard, are applied for jointing the power cables with impregnated paper insulation:

  • Straight through joint boxes type KS with lead sleeve for cables with common metal coating, nominal voltage 1-10 kV(choice according to table 1);
  • Straight through joint boxes type KS/H with lead sleeve for cables with common metal coating, nominal voltage 15-35 kV (choice according to table 2);
  • Straight through joint boxes type KS/HE with lead sleeves for cables with metal coating over each core, nominal voltage 15-35 kV (choice according to table 3);
  • Straight trough joints boxes type KS/P with lead sleeve for cables in various constructions, one with common and other with separate metal coating over each core, nominal voltage 20-35 kV (choice according to table 4);
  • Branch joints boxes type KSR with or without lead sleeve for in cases of branching uncut and cut cables, nominal voltage 1-10 kV (choice according to table 5).

All protective boxes (outdoor protection) are made of cast iron with cover, except special boxes KS up to 10 kV, which have protection of heat-shrinkable tube. Protective boxes are filled up with bitumen compound and lead sleeves are filled up with high voltage oil compound.

Table 1.

Type of Lead Cross-section (mm2) Dimensions ca. mm Weight ca. kg
joint box sleeve

single core
1 kV

two cores
1 kV

three cores
1, 6 and
10 kV

four cores 1-10 kV l1 (L) l2 l3 d1 d2 h b (D) Sleeve Filling compo-und
KS 19 KSU 19 6-95 2,5-35 2,5-25 (1) 25-16 450 354 264 30 61 115 122 5,6 2,0
        35-50 (1)                    
KS 26 KSU 26 120-185 50-95 6-25 (6) 25-35 550 442 352 37 74 129 135 8,5 3,5
        10 (10)                    
KS 26-S       do 25 (10)   800           100 - -
        70-120 (1)                    
KS 34 KSU 34 240-400 120-150 35-70 (6) 50-95 655 532 442 45 88 154 178 15 5,5
        25-50 (10)                    
KS 34-S           900           115 - -
        150-185 (1)                    
KS 43 KSU 43 500-630 185-240 95-120 (6) 120-150 765 624 532 54 101 166 193 20,6 8
        70-120 (10)                    
KS 43-S           1000           125 - -
        240-300 (1)                    
KS 53 KSU 53 800-1000 300-400 150-240 (6) 185-240 800 718 614 64 114 180 210 28,8 11,5
        150-185 (10)                    
KS 53-S           1100           135 - -
        400 (1)                    
KS 64 KSU 64 - - 300-400 (6) 300 1000 814 696 75 128 195 220 35,6 16
        240-300 (10)                    
KS 64-S           1150           150 - -

Table 2.

Type of Lead Cross-section Dimensions ca. mm Weight ca. kg
joint box sleeve (mm2) l1 l2 l3 d1 d2 h b

Cast iron box

Lead sleeve

Compound

VUM

Compound

SP

KS 1150/H KSU 820 16-150 (15kV) 1150 960 820 90 144 220 248 39 16,5 10 10
KS 1350/H KSU 950 185-240 (15 kV) 16-150 (20 kV) 1350 1100 950 105 158 250 280 68 20 13,5 14
KS 1640/H KSU 1170 185-240 (20 kV) 35-240 (35 kV) 1640 1320 1170 120 178 300 326 94 28,5 20 31

Table 3.

Type of Lead Cross-section Dimensions ca. mm Weight ca. kg
joint box sleeve (mm2) l1 l2 l3 d1 d2 h b

Cast iron box

Lead sleeve

Compound

VUM

Compound

SP

KS 1150/HE KSU 470 16-150 (15kV) 1150 960 470 90 68 220 248 39 11 3 17
KS 1350/HE KSU 580 185-240 (15 kV) 16-150 (20 kV) 1350 1100 580 105 76 250 280 68 15 5 24
KS 1640/HE KSU 750 185-240 (20 kV) 35-240 (35 kV) 1640 1320 750 120 90 300 326 94 22,5 8 41

Table 4.

Type of Lead Cross-section Dimensions ca. mm Weight ca. kg
joint box sleeve (mm2) l1 l2 l3 d1 d2 h b

Cast iron box

Lead sleeve

Compound

VUM

Compound

SP

KS 1640/P KSU 1070 25-240 (20 kV) 35-240 (35 kV) 1640 1320 1070 120 178 300 326 94 27 19 30

Table 5.

Type of Lead Cross-section (mm2) Dimensions ca. mm Weight ca. kg
joint box sleeve

single core
1 kV

two cores
1 kV

three cores
1, 6 and
10 kV

four cores 1-10 kV l1 (L) l2 l3 d1 d2 h Sleeve Filling compo-und
        35-50 (1)                  
KSR 26 KSRU 26 do 185 do 50 6-25 (6) do 25 570 462 362 231 37 126 11 5
        10 (10)                  
        70-120 (1)                  
KSR 34 KSRU 34 240-400 70-95 35-70 (6) 35-50 680 558 434 280 45 160 18 7
        25-50 (10)                  
        150-185 (1)                  
KSR 43 KSRU 43 500-630 120-150 95-120 (6) 70-95 780 640 492 320 54 177 24,5 10
        70-120 (10)                  
        240-300 (1)                  
KSR 53 KSRU 53 800-1000 185-240 150-240 (6) 120-150 880 720 557 360 64 203 38 16
        150-185 (10)                  
        400 (1)                  
KSR 64 KSRU 64 - 300 300-400 (6) 300 1100 824 692 462 75 254 44,5 30
        240-300 (10)