SVCZ
APPLICATION
External heat shrinkable joints SVCZ are determined for splicing of four-core plastics power cables for rated voltage of 0,6 / 1 kV.
MARKING
Marking consists of characters SVCZ and a number to indicate the cross-section of phase core.
If joint includes pressing cable connectors for conductor connecting (LKS) marking is finished by character S.
Marking examples:
SVCZ 35 - heat shrinkable joint for cable AYKY (CYKY) 4 x 35 (without LKS).
SVCZ 120-S - heat shrinkable joint for cable AYKY 3 x 120 + 70 with three LKS for conductors of 120 mm2 and one LKS for conductor of 70 mm2.
CHARACTERISTICS
Joint includes 4 (or 3+1) insulation tubes for insulating of wire contacts and one jacket tube for jacketing in a place of core bonding.
Inside the insulation and jacket heat shrinkable tubes are provided with a layer of hot melt adhesive, which after installation ensures a perfect sealing of the cable connect.
The tubes are made from cross-linked polyethylene. Its properties are shown in Tab.1.
Detailed type description of joints is shown in Tab. 2.
Heat shrinkable joints are produced and delivered according to PN VUKI 22 012.
Tab. 1 Properties of material (cross-linked PE)
| Tensile strength [MPa] | min. 13 |
| Elongation at break [%] | min. 350 |
| Shrink temperature [°C] | 150 - 200 |
| Operating temperature – long term [°C] | 100 |
| Operating temperature – short term [°C] | 150 |
| Volume resisivity[Ω.m] | 1013 |
| Dielectric strength [kV/mm] | 12 |
Tab. 2 Dimension table of heat shrinkable joints SVCZ
| Joint type | Number and cross-section of cores | Insulation tube | Jacket tube | LKS | ||||||
| d1/d2 | Li | No. | d1/d2 | Lp | No. |
For core cross-section |
Inner diameter |
No. | ||
| [pcs x mm2] | [mm] | [mm] | [ks] | [mm] | [mm] | [ks] | [mm2] | [mm] | [ks] | |
| SVCZ 10 | 4x10 | 12/4 | 100 | 4 | 40/16 | 400 | 1 | 10 | 4,5 | 4 |
| SVCZ 16 | 4x16 | 12/4 | 150 | 4 | 40/16 | 500 | 1 | 16 | 5,5 | 4 |
| SVCZ 25 | 4x25 | 18/6 | 150 | 4 | 50/18 | 500 | 1 | 25 | 6,5 | 4 |
| SVCZ 35 | 4x35 | 18/6 | 200 | 4 | 50/18 | 800 | 1 | 35 | 8 | 4 |
| SVCZ 50 | 4x50 | 18/6 | 200 | 4 | 60/25 | 800 | 1 | 50 | 9,5 | 4 |
| SVCZ 70 | 4x70 | 25/10 | 250 | 4 | 60/25 | 800 | 1 | 70 | 11 | 4 |
| SVCZ 95 | 3x95+70 | 25/10 | 250 | 4 | 80/32 | 800 | 1 |
95 70 |
13 11 |
3 1 |
| SVCZ 120 | 3x120+70 |
30/10 25/10 |
250 250 |
3 1 |
80/32 | 1000 | 1 |
120 70 |
14,5 11 |
3 1 |
| SVCZ 150 | 3x150+70 |
40/16 25/10 |
250 250 |
3 1 |
80/32 | 1000 | 1 |
150 70 |
16 11 |
3 1 |
| SVCZ 185 | 3x185+95 |
40/16 25/10 |
250 250 |
3 1 |
100/42 | 1000 | 1 |
185 95 |
18 13 |
3 1 |
| SVCZ 240 | 3x240+120 |
40/16 30/10 |
280 280 |
3 1 |
100/42 | 1000 | 1 |
240 120 |
21 14,5 |
3 1 |
Li, Lp - length of tube in the supplied form
d1 - min. inner diameter of tube before shrinking
d2 - max. inner diameter of tube after unrestricted shrinking
LKS - pressing cable connector
Tab. 3 Situating of cables in joint and size for assembly.
| Joint type | Number and cross-section of cores |
Dimensions | ||||
| L1 | L2 | A | L | |||
| [pcs x mm2] | [mm] | [mm] | [mm] | [mm] | ||
| SVCZ 10 | 4x10 | 130 | 70 | 100 | 400 | |
| SVCZ 16 | 4x16 | 200 | 100 | 100 | 500 | |
| SVCZ 25 | 4x25 | 200 | 100 | 100 | 500 | |
| SVCZ 35 | 4x35 | 300 | 130 | 185 | 800 | |
| SVCZ 50 | 4x50 | 300 | 130 | 185 | 800 | |
| SVCZ 70 | 4x70 | 300 | 130 | 185 | 800 | |
| SVCZ 95 | 3x95+70 | 300 | 130 | 185 | 800 | |
| SVCZ 120 | 3x120+70 | 370 | 210 | 210 | 1000 | |
| SVCZ 150 | 3x150+70 | 370 | 210 | 210 | 1000 | |
| SVCZ 185 | 3x185+95 | 370 | 210 | 210 | 1000 | |
| SVCZ 240 | 3x240+120 | 370 | 210 | 210 | 1000 | |
Pic. 1
Heat shrinkable joints SVCZ are delivered in PE bags (one set each).
