MICC Cable accessories include: terminals, wiring terminals, copper grounding plate, intermediate connector.
1.Terminal
It usually includes a sealing and a gland or a combination of one of them when installed at a complete end at the end of a mineral-insulated cable. Each cable needs to install a terminal.
(1). Terminal seal: part of the cable termination to seal the end of the cable to prevent moisture. The terminal includes brass pot, stup cap, terminal sealant and insulating pipe of the exposed part of the conductor. Single-core cable can be carried without sealed can and cover plate;
(2). Terminal gland: part of the cable terminal, mainly used to connect the cable and switch cabinet, branch box, it includes gland body, brass compression ring, gland back nut, end nut.
2. Wiring terminal
Wiring terminals are used to connect conductors and control cabinet terminals or power supplies. It consists of a press-fit nut, a press-fit inclined block, and a terminal body.
There are two forms of terminal blocks:
(1).Pressing installation-type wiring terminal, which is suitable for the connection of cables above 35mm2;
(2).Crimp type terminal is suitable for the connection of 6-25mm2 cables. Small size cable 4mm2 and below can be without terminals.
3. Copper grounding plate
When using the copper sheath of the cable as a grounding or for other electrical equipment connected to the copper sheath of the cable, grounding plates are required.
4. Intermediate connector
When the cable length is not long enough, using intermediate connector to connect two cables of the same specification into one cable, including the middle gland, the middle connection copper tube, two sets of terminal sealing tanks (single core cable is not required), heat shrink sleeves, intermediate connection terminals, fireproof ceramic columns. The mid-connection gland includes the gland body, compression ring, gland back nut, mainly used to connect the intermediate connection pipe and cable. The middle connection terminal is a conductor used to connect two cables of the same specifications, it has three forms:
(1). crimp type, suitable for connecting 4mm2 and below cables;
(2). press-fit type, suitable for connecting cables above 35 mm2;
(3). screw connection type, suitable for connecting 6-25mm2 cables.
5. Annex of the intermediate connection device:
Copper core copper -care -based mineral insulation cable intermediate connection, rated voltage 750V, suitable for the connection of single core 4mm2 cable.
|
Models |
Cable models |
specifications of applicable cable |
|
TGZJ-I |
BTTZ BTTVZ WD-BTTYZ |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
BTTQ BTTVQ WD-BTTYQ |
1*1-1*4,2*1-2*4,3*1-3*2.5,4*1-4*2.5,7*1-7*2.5 |
|
|
TGZJ-II |
BTTZ BTTVZ WD-BTTYZ |
1*50-1*95,2*10-2*16,3*6-3*16,4*4-4*10,7*1-7*4,10*1.5-10*2.5,12*1.5-12*2.5 |
|
TGZJ-III |
BTTZ BTTVZ WD-BTTYZ |
1*120,1*150,2*25,3*25,4*16,19*1.5 |
|
TGZJ-IV |
BTTZ BTTVZ WD-BTTYZ |
1*185,1*240,4*25 |
|
TGZJ-V |
BTTZ BTTVZ WD-BTTYZ |
1*300,1*400 |
|
|
Terminal gland
|
Model |
D(mm) |
d(mm) |
L(mm) |
Voltage class |
Specifications of applicable cable |
|
ZD-I |
M20 |
24 |
34 |
750V |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
|
500V |
1*1-1*4,2*1-2*4,3*1-3*2.5, 4*1-4*2.5,7*1-7*2.5 |
|||
|
ZD-II |
M25 |
29 |
37 |
750V |
1*50-1*95,2*10-2*16,3*6-3*16,4*4-4*10,7*1-7*4,10*1.5-10*2.5,12*2.5 |
|
ZD-III |
M32 |
36 |
38 |
750V |
1*120,1*150,2*25,3*25,4*16,19*15 |
|
ZD-IV |
M40 |
45 |
42 |
750V |
1*185,1*240,4*25 |
|
ZD-V |
M42 |
46 |
56 |
750V |
1*300,1*400 |
Terminal and intermediate connection sealed tank
|
seal model |
D(mm) |
L(mm) |
Voltage class |
Specifications of applicable cable |
|
20 |
15 |
17 |
750V |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
25 |
21 |
25 |
500V |
1*1-1*4,2*1-2*4,3*1-3*2.5, 4*1-4*2.5,7*1-7*2.5 |
|
32 |
26.5 |
32 |
750V |
1*50-1*95,2*10-2*16,3*6-3*16,4*4-4*10, 7*1-7*4,10*1.5-10*2.5,12*2.5 |
|
40 |
33.5 |
40 |
750V |
1*185,1*240,4*25 |
|
50 |
365 |
50 |
750V |
1*300,1*400 |
Press-fit terminal
|
No. |
L(mm) |
D(mm) |
d(mm) |
Voltage class |
Specifications of applicable cable |
|
YZ-I |
52.5 |
22 |
8 |
750V |
1*35 |
|
YZ-II |
52.5 |
22 |
10.5 |
750V |
1*50 1*95 |
|
YZ-III |
72 |
27 |
12 |
750V |
1*120 1*150 |
|
YZ-IV |
88 |
32 |
14 |
750V |
1*185 1*240 |
|
YZ-V |
101 |
40 |
16 |
750V |
1*300 1*400 |
Crimp terminals (Copper fastener)
|
Cross section of conductors mm2 |
Terminal model |
d(mm) |
D(mm) |
|
6 |
DT-4 |
2.8 |
5 |
|
10 |
DT-6 |
3.5 |
6 |
|
16 |
DT-10 |
4.5 |
8 |
|
25 |
DT-16 |
6 |
9 |
Copper grounding plate
|
model |
D(mm) |
L(mm) |
Voltage class |
Specifications of applicable cable |
|
I |
15 |
17 |
750V |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
500V |
1*1-1*4,2*1-2*4,3*1-3*2.5,4*1-4*2.5,7*1-7*2.5
|
|||
|
II |
21 |
25 |
500V |
1*50-1*95,2*10-2*16,3*6-3*16,4*4-4*10,7*1-7*4,10*1.5-10*2.5,12*2.5 |
|
III |
26.5 |
32 |
750V |
1*120,1*150,2*25,3*25,4*16,19*15 |
|
IV |
33.5 |
40 |
750V |
1*185,1*240,4*25 |
|
V |
365 |
50 |
750V |
1*300,1*400 |
Sealed insulating accessories
There are two types of sealing and insulating accessories: sealing material and insulating sleeve for the exposed part of the conductor. The first is suitable for multi-core cables, and the second is suitable for single-core cables.
(1). Sealing material: The sealing mud is greasy, and the maximum operating temperature is 250 °C.
(2). Insulation sleeve for exposed part of conductor: divided into plastic heat shrinkable sleeve and ceramic sleeve; ceramic sleeve is made of pressed ceramic material, mainly used in high temperature and fireproof places.
Heat Shrink Sleeve Spec Sheet
|
Specifications(mm)(before contraction/after contraction) |
thickness of wall after contraction under (mm) |
Use occasions
|
Specifications of applicable cables mm2
|
|
6/2.0 |
0.65 |
Insulation of conductors with single-core cables or seals of copper sheaths and conductors |
1.0 1.5 2.5 |
|
6.5/2.0 |
0.65 |
4 |
|
|
7/2.5 |
0.7 |
6 |
|
|
8.0/3.5 |
0.7 |
10 |
|
|
9.0/4.0 |
0.7 |
16 |
|
|
11.0/5.0 |
0.7 |
25 |
|
|
12/6.0 |
0.8 |
35 |
|
|
15/7.5 |
0.8 |
50 |
|
|
20/90 |
0.8 |
70 95 120 |
|
|
25/12.5 |
0.9 |
150 185 |
|
|
30/14 |
1.0 |
240 300 |
|
|
35/16 |
1.0 |
400 |
|
|
3/1.0 |
0.65 |
Insulation of conductors with multi-core cables |
1.0 1.5 2.5 |
|
4/2.0 |
0.65 |
4 6 |
|
|
7/2.5 |
0.7 |
10 16 |
|
|
11/5.0 |
0.7 |
25 |
|
|
For cables with water-proof requirements on their middle connector,thermal contraction casings are required to be added outside the joints |
|||
|
33/11 |
1.0 |
Seals used for middle connecting copper tubes and external diameter of conductors |
BTTZ 1*1-1*35,2*1-2*6, 3*1-3*4, 4*1-4*2.5 |
|
40/11 |
1.0 |
BTTQ 1*1-1*4,2*1-2*4,3*1*3*2.5, 4*1-4*2.5,7*1-7*2.5 |
|
|
48/16 |
1.0 |
BTTZ 1*50-1*95,2*10-2*16,3*6-3*16, 4*4-4*10,7*1-7*4,10*1.5-10*2.5,12*1.5-12*2.5 |
|
|
55/19 |
1.0 |
BTTZ 1*185 ,1*240,4*25 |
|
|
60/25 |
1.2 |
BTTZ 1*300 1*400 |
|
Intermediate connection sleeves
|
Models |
L(mm) |
D(mm) |
d(mm) |
Models |
Specifications of applicable cable |
|
ZJ-I |
260 |
28 |
22 |
BTTZ |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
|
BTTQ |
3*1-3*2.5, 4*1-4*2.5, 7*1-7*2.5, 1*1-1*4, 2*1-2*4 |
|||
|
ZJ-II |
280 |
36 |
30 |
BTTZ |
1*50-1*95, 2*10, 2*16, 3*6-3*16, 4*4-4*10, 7*1-7*4, 10*1.5, 10*2.5, 12*1.5, 12*2.5 |
|
ZJ-III |
320 |
43 |
37 |
BTTZ |
1*120, 1*150, 2*25, 3*25, 4*16, 19*1.5 |
|
ZJ-IV |
320 |
50 |
44 |
BTTZ |
1*185, 1*240, 4*25 |
|
ZJ-V |
360 |
57 |
51 |
BTTZ |
1*300, 1*400 |
Connected stuffing box
|
Models |
M |
Models |
Specifications of applicable cable |
|
ZF-I |
25*1.5 |
BTTZ |
1*1-1*35,2*1-2*6,3*1-3*4,4*1-4*2.5 |
|
BTTQ |
3*1-3*2.5，4*1-4*2.5，7*1-7*2.5，1*1-1*4，2*1-2*4 |
||
|
ZF-II |
32*1.5 |
BTTZ |
1*50-1*95，2*10，2*16，3*6-3*16，4*4-4*10， |
|
|
7*1-7*4，10*1.5，10*2.5，12*1.5，12*2.5 |
||
|
ZF-III |
40*1.5 |
BTTZ |
1*120，1*150，2*25，3*25，4*16，19*1.5 |
|
ZF-IV |
46*1.5 |
BTTZ |
1*185，1*240，4*25 |
|
ZF-V |
54*1.5 |
BTTZ |
1*300，1*400 |
Installation-type middle connecting terminal
|
No. |
Models |
Specifications of applicable cable |
|
|
Models |
Specifications |
||
|
1 |
YZ/ZL-I |
BTTZ |
1*35 |
|
2 |
YZ/ZL-II |
BTTZ |
1*50 1*95 |
|
3 |
YZ/ZL-III |
BTTZ |
1*120 1*150 |
|
4 |
YZ/ZL-IV |
BTTZ |
1*185 1*240 |
|
5 |
YZ/ZL-V |
BTTZ |
1*300 1*400 |
Screw connection-type middle connecting terminal
|
Standard cross section of conductors mm2 |
L(mm) |
d(mm) |
D(mm) |
|
6 |
35 |
2.96 |
6.7 |
|
10 |
35 |
3.77 |
7.5 |
|
16 |
55 |
4.71 |
10 |
|
25 |
55 |
5.84 |
11 |
Branch box
|
Models |
Overall dimension(mm) |
Specifications of main cable wires |
|
MI-FZ-I |
360*230*140 |
35 and below |
|
MI-FZ-II |
360*230*140 |
1*50-1*95 |
|
MI-FZ-III |
360*230*140 |
1*120-1*150 |
|
MI-FZ-IV |
410*340*160 |
1*185-1*240 |
|
MI-FZ-V |
450*400*180 |
1*300-1*400 |
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