China Special Cable

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It is used for supervising and controlling return circuit of rated voltage 450/750V or lower with demand on low smoke, low halogen and flame retardance.
Executive standard:
Enterprise standard and GB 9330 - 88 standard for reference
Working Condition
1: Rated voltage: 450/750V
2: Long-term working temperature allowed by cable is 70鈩?
3: Ambient temperature for installing cable shall be no lower than 0鈩?
Recommended bending radius:
It shall be no less than 12 times that of cable O.D for armored cable with copper tape shielding structure and 6 times that of cable O.D for cable with other structure.
Type and Description
1 Type and Description
TypeDescription
DDZ -KVVControl cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath
DDZ -KVVPControl cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath, copper wire
braided shielding
DDZ -KVVRControl soft cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath
DDZ -KVVRPControl soft cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath, copper
wire braided shielding
DDZ -KVVP2Control cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath, copper
tape wrapped shielding
DDZ -KVVP22Control cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath, steel tape
armor
DDZ -KVVP32Control cable with Cu core, low smoke & halogen, flame retardant, PVC insulation and sheath, steel wire
armor
Remark: 鈥楧DZ鈥?means low smoke & halogen, flame retardant
2 Explanation of Main Noun Term
Low smoke: under stipulated testing conditions, smoke out of decomposition with heat or emission in firing is less, which conforms to stipulated indices.
Low halogen: under stipulated testing conditions, HCI content of smoke emitted in firing is less which conforms to stipulated indices.
Flame retardant: under stipulated testing conditions, the tested sample is fired. After removing from source, flame spreads within stimulated range, remnant flame will go out on itself within stipulated time.
Specification Scope
TypeRated
voltage
VNominal cross section area of conductor mm2
0.50.751.01.52.54610
core no.
DDZ-KVV 銆丏DZ-KVVP
450/7502~612~37
2~14
DDZ-KVVP2銆?DDZ-KVVP22 DDZ-KVVP324~612~37
DDZ-KVVR銆丏DZ-KVVRP2~612~37
Main Technical Indices
Performance indices of low smoke & halogen and flame retardance Smoke density test: min. light-penetration ratio is 鈮?0%.
Hcl emission value shall be no more than 100mg/g.
Conductor DC resistance value & voltage withstand stress at 20鈩?/p>Nominal cross section area
(mm2)Conductor structure
Pieces/diameter
(mm)Conductor DC resistance at 20鈩?(惟/km)Voltage withstand stress
Non tinned
tinned
0.51/0.836.036.73kV/5min. Insulation without puncture
7/0.3036.036.7
16/0.2039.040.1
0.751/0.9724.524.8
7/0.3724.524.8
24/0.2026.026.7
1.01/1.1318.118.2
7/0.4318.118.2
32/0.2019.520.0
1.51/1.3812.112.2
7/0.5212.112.2
30/0.2513.313.7
2.51/1.787.417.56
7/0.687.417.56
49/0.267.988.21
41/2.254.614.70
7/0.854.614.70
56/0.304.955.09
61/2.763.083.11
7/1.043.083.11
84/0.303.303.39
107/1.351.831.84
3 External Dimension of Cable Please refer to control cable with PVC insulation and sheath
Delivery length
Delivery length of cable depends on both agreements with length error allowance of 卤0.5%China Special Cable
website:http://www.chinaxintongcable.com/special-cable/
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