Flame-retardant wire and cable_Jiusheng Electric Co., Ltd

　　 This product is suitable for power transmission in power lines with a rated voltage of 0.6/1KV and below. Resistant wire and cable have the ability to catch fire and prevent or delay the spread of flame. It is suitable for laying in a variety of occasions where the cable has flame-retardant requirements, such as high-rise buildings, hotels, hospitals, subways, nuclear power plants, power plants, mines, and petroleum. , Chemical industry, etc.
Product implementation standards:GB/T19666-2005, GB/T5023-2008, GB/T12706.1-2008, GB/T9330-2008

Instructions for flame-retardant wires and cables
　　 Flame-retardant wire and cable refers to being burned under the specified test conditions, so that the flame spread is only within a limited range. After the fire source is removed, the residual smoke and residual burn can extinguish the cable by itself within a limited time
Flame retardant grade of flame retardant wire and cable
　　The burning of finished wires and cables is divided into single burning test and bundle burning test.
Single burning test method: Take the vertical support of the specimen with the specified length, place the rubberized kraft paper "flame indicator" on the upper part of the specimen, and place the surgical cotton ball under the specimen. Use a blowtorch to supply fire to the specimen for 15s, Stop for 15s. After repeated 5 cycles, if the "flame indicator" burns more than 25%, the burning drops ignite the cotton ball, and the flame lasts for more than 60s, it will be judged as unqualified, otherwise it is qualified.
Bundle burning test method: The cables are arranged in a bundle on a vertical ladder frame, and the sample is supplied with a torch for a specified time from the bottom to the top. After stopping the fire supply for 1 hour, measure the height of the carbonized part of the sample. If the height of the carbonized part does not exceed 2.5 meters, it is judged as qualified, otherwise it is unqualified.
According to the test conditions specified in GB/T18380.3-2002, flame-retardant wires and cables are divided into four levels: A, B, C, and D
Table 1

Flame retardant grade	Fire temperature	Fire time	The volume of non-metallic materials for laying cables in bundles	Charring height	Self-extinguishing time	Applicable products
A	≥815℃	40min	≥7L/m	≤2.5m	≤1h	Flame retardant cable
B	≥815℃	40min	≥3.5L/m	≤2.5m	≤1h	Flame retardant cable
C	≥815℃	20min	≥1.5L/m	≤2.5m	≤1h	Flame retardant cable
D	≥815℃	20min	≥0.5L/m	≤2.5m	≤1h	Flame retardant insulated wire

We could not find any corresponding parameters, please add them to the properties table

Representation of flame-retardant wire and cable products
The model representation method of the flame-retardant wire and cable: The model of the flame-retardant wire and cable is added ○-□ before the model of the ordinary cable. 〇- is the flame-retardant code and represented by Z, □- is the flame-retardant grade code, and the flame-retardant grade ABCD is used Means.
Products are expressed by model, rated voltage, core number, nominal cross section and the number of this standard.
For example: Rated voltage 450/750V flame-retardant PVC wire, single core, 4mm2, expressed as ZB-BV 450/750V 1*4 Q/TEC16.03-2005
Rated voltage 600/1000V flame-retardant Class B XLPE insulated PVC sheathed power cable, 3-core, 240mm2, denoted as ZB-YJV 600/1000V 3*240 Q/TEC16.03-2005

See the table for the model and name of the cable

Model	Name	Flame retardant rating	Core number	Cross section mm2	Rated voltage v
Z-BV	PVC insulated flame retardant wire with copper core	A、B、C、D	1	1.5-400	450/750
Z -BVV	PVC insulated flame retardant round cable with copper core and sheath	A、B、C、D	1-5	1.5-35	300/500
Z -BVVB	PVC insulated flame retardant flat cable with copper core and PVC sheath	A、B、C、D	2,3	0.75-10	300/500
Z -BVR	PVC insulated flame retardant flexible cable with copper core	A、B、C、D	1	2.5-70	450/750
Z -RVS	PVC insulated flame retardant stranded connecting flexible cable with copper core	A、B、C、D	1	0.75-2.5	300/300
Z -RV	Sheathless flame retardant flexible cable with copper core	A、B、C、D	1	1.5-240	450/750
Z -KVV	PVC insulated flame retardant control cable with PVC sheath	A、B、C、D	2-61	1-10	450/750
Z -KVV22	PVC insulated flame retardant control cable with PVC sheath and steel tape armoring	A、B、C、D	2-61	1-10	450/750
Z -KVVP2	PVC insulated flame retardant control cable with PVC sheath and copper tape shielding	A、B、C、D	2-61	1-10	450/750
Z -KVVP2-22	PVC insulated flame retardant control cable with PVC sheath, copper tape shielding and steel tape armoring	A、B、C、D	2-61	1-10	450/750
Z -KYJV	Crosslinked polyethylene insulated flame retardant control cable with PVC sheath	A、B、C、D	2-61	1-10	450/750
Z -KYJV22	Crosslinked polyethylene insulated flame retardant control cable with PVC sheath and steel tape armoring	A、B、C、D	2-61	1-10	450/750
Z -KYJVP2	Crosslinked polyethylene insulated flame retardant control cable with PVC sheath and copper tape shielding	A、B、C、D	2-61	1-10	450/750
Z -KYJVP2-22	Crosslinked polyethylene insulated flame retardant control cable with PVC sheath, steel tape armoring and copper tape shielding	A、B、C、D	2-61	1-10	450/750
Z -VV	PVC insulated flame retardant cable with PVC sheath	A、B、C、D	1-5	1.5-800	600/1000
Z -VV22	PVC insulated flame retardant cable with PVC sheath and steel tape armoring	A、B、C、D	1-5	1.5-400	600/1000
Z -YJV	Crosslinked polyethylene insulated flame retardant cable with PVC sheath	A、B、C、D	1-5	1.5-800	600/1000
Z -YJV22	Crosslinked polyethylene insulated flame retardant cable with PVC sheath and steel tape armoring	A、B、C、D	1-5	1.5-400	600/1000

　This product is suitable for power transmission in power lines with a rated voltage of 0.6/1KV and below. The resistance wire and cable is difficult to catch fire and has the ability to prevent or delay the spread of flame. It is suitable for a variety of occasions where the cable has flame retardant requirements

Using features
The rated voltage U0/U of the flame-retardant cable is 0.6/1KV, the rated voltage U0/U of the flame-retardant control cable is 450/750V, and the rated voltage U0/U of the flame-retardant wire and cable is 450/750V and below.
　　The long-term allowable working temperature of PVC insulated cables does not exceed 70℃, and the long-term allowable working temperature of XLPE insulated cables does not exceed 90℃
　　 The ambient temperature during installation should not be lower than 0°C.
　　Minimum bending radius during cable installation
　　The outer diameter (D) of the flame-retardant wire is less than 25mm, the allowable bending radius of the cable should not be less than 4D, the outer diameter (D) is 25mm and above, and the allowable bending radius of the cable should not be less than 6D.
　　 Flame-retardant and fire-resistant control cables: cables without armor layers should be no less than 6 times the outer diameter of the cables, cables with armored or copper tape shielding structures should be no less than 12 times the outer diameter of the cables.
　　The minimum bending radius of flame-retardant and fire-resistant power cables is shown in Table 3

	Single core cable		Multi-core cable
Item Item	Unarmored	Armored	Unarmored	Armored
Minimum bending radius during installation	20D	15D	15D	12D

D-Outer diameter of the cable

Table 4 Nominal cross-section of neutral conductor of multi-core cable

Nominal cross section of main insulated core conductor /min2	Nominal cross section of neutral conductor /min2
	3+1, 3+2, 4+1 core 3+1, 3+2, 4+1 Cores	4, 5 cores 4. 5 Cores
4	2.5	4
6	4	6
10	6	10
16	10	16
25	16	25
35	16	35
50	25	50
70	35	70
95	50	95
120	70	120
150	70	150
185	95	185
240	120	240
300	150	300
400	185	400

　　The conductive core of the single-core cable is round, and those of 16mm2 and above can be pressed tightly. For multi-core cables with a cross-section of 35mm2 and below, the core should be round, and those with a cross-section of 50mm2 and above should be fan-shaped, tile-shaped or semicircular. The fourth core (neutral core) in a four-core cable can be round or fan-shaped. The neutral wire of a five-core cable can be round or tile-shaped. Those with a diameter of 6mm2 and below are allowed to be composed of a single conductor, and those with a diameter of 10mm2 and above are composed of multiple single wires. The shaped conductor (sector, tile or semicircle) should be tightly pressed.
Main performance
The finished wire should be able to withstand 5 cycles of vertical burning test without transmitting flame. After the test, the continuous burning time of the sample should not exceed 1h. The finished cable should be subjected to a bundled cable burning test. After the test, the height of the scorched or affected part of the cable should not exceed 2.5m above the point of action of the flame.
The wire and cable should withstand the low-temperature winding test or low-temperature impact test at -15℃. After the test, there should be no visible cracks on the surface of the sample.
The insulation volume resistivity of the finished wire at 70℃ should be greater than 1*1010Ω/cm.
The finished flame-retardant and fire-resistant wire should be able to withstand the 2.5KV AC voltage test without breakdown in 5 minutes. The finished flame-retardant and fire-resistant control cable should be able to withstand the 3KV AC voltage test without breakdown in 5 minutes. The finished flame-retardant and fire-resistant power cable should be able to withstand the 3.5KV AC voltage test, and the flame-retardant and fire-resistant wire and cable should not be broken for 5 minutes. The flame-retardant and fire-resistant wire and cable are made of highly flame-retardant polyvinyl chloride plastic, and the oxygen index is greater than 30%. The cables are the same.
Cable specifications and reference data

The specifications, structural dimensions and weight of the flame-retardant wire and cable products are according to the common type and similar products.
Selection points of flame-retardant cables

When 　　 wires and cables are laid in bundles, flame-retardant wires and cables should be used.
Method for selecting flame retardant grade of flame retardant cable:
Calculate the total volume of non-metallic materials of wires and cables according to Table 5 to Table 7, and then determine the flame retardant grade according to Table 1.
For cables laid in the same channel, cables of the same flame-retardant grade should be selected. Flame-retardant and non-flame-retardant cables should not be laid in the same channel. For cables laid in a box with a cover and a cable trench with a cover, if measures such as blocking and water blocking have been taken to prevent flame extension, the first-class flame-retardant requirement can be reduced. The flame-retardant cable must indicate the flame-retardant level. Those who indicate the level shall be regarded as C level.

Table 5 Reference table for non-metallic content of 450/750V PVC insulated wires

Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m
1.5	3.4	0.0076	16	8	0.0342	95	17	0.1319	300	29.5	0.3831
2.5	4.2	0.0113	25	9.8	0.0504	120	19	0.1634	400	33.5	0.4810
4	4.8	0.0141	35	11	0.0600	150	21	0.1962
6	5.4	0.0169	50	13	0.0827	185	23.5	0.2485
10	6.8	0.0263	70	15	0.1066	240	26.5	0.3113

Table 6 Reference table for non-metallic content of 0.6/1KV PVC insulated unarmored cables

1 core			3 cores			(3+1) cores
Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m
1.5	5.8	0.0294	1.5	10.4	0.0878
2.5	6.2	0.0327	2.5	11.3	0.0975	2.5	11.9	0.1099
4	7.1	0.0416	4	13.2	0.1238	4	13.7	0.1369
6	7.6	0.0461	6	14.3	0.1372	6	15.2	0.1572
10	8.9	0.0576	10	17.0	0.1742	10	17.8	0.1957
16	9.6	0.0643	16	18.6	0.1961	16	20.0	0.2295
25	11.2	0.0830	25	22.5	0.2910	25	23.7	0.3181
35	12.2	0.0926	35	24.6	0.3203	35	25.5	0.3448
50	14.0	0.1161	50	25.3	0.3481	50	28.6	0.4166
70	15.8	0.1386	70	28.4	0.4069	70	32.3	0.4864
95	18.0	0.1753	95	32.4	0.5098	95	37.3	0.6298
120	19.4	0.1918	120	35.4	0.5745	120	40.5	0.7090
150	21.6	0.2343	150	39.0	0.6911	150	44.4	0.8489
185	23.8	0.2809	185	43.0	0.8230	185	49.7	1.0244
240	26.5	0.3323	240	48.8	1.0379	240	56.0	1.2635
300	31.3	0.4284	300	53.0	1.2344	300	62.2	1.5166

Continued Table 6

4 cores			5 cores			(4+1) cores			(3+2) cores
Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m
1.5	11.2	0.1012	1.5	12.0	0.1158
2.5	12.2	0.1128	2.5	13.1	0.1294	2.5	12.9	0.1099	2.5	13.3	0.1474
4	14.3	0.1456	4	15.5	0.1717	4	15.0	0.1369	4	15.0	0.1723
6	15.5	0.1646	6	16.9	0.1908	6	16.6	0.1572	6	16.3	0.1913
10	18.6	0.2066	10	20.3	0.2410	10	19.6	0.1957	10	18.9	0.2290
16	20.4	0.2329	16	22.4	0.2716	16	22.4	0.2295	16	22.0	0.2732
25	24.7	0.3356	25	27.1	0.3932	25	26.2	0.3181	25	25.4	0.3596
35	27.1	0.3712	35	30.0	0.4465	35	28.6	0.3448	35	27.0	0.3848
50	27.5	0.4222	50	31.6	0.5273	50	29.9	0.4166	50	28.5	0.4471
70	31.4	0.5068	70	36.0	0.6182	70	33.9	0.4864	70	32.3	0.5218
95	36.0	0.6375	95	41.4	0.7916	95	39.0	0.6298	95	36.8	0.6635
120	39.1	0.7153	120	44.4	0.8834	120	41.5	0.7090	120	39.5	0.7445
150	43.4	0.8806	150	49.1	1.0808	150	46.9	0.8489	150	44.2	0.9157
185	47.8	1.0480	185	54.8	1.3155	185	52.0	1.0244	185	49.0	1.0960
240	54.3	1.3174	240	61.8	1.6326	240	59.0	1.2635	240	55.6	1.3450
300	60.9	1.5883	300

1 core			3 cores			(3+1) cores
Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m
1.5	5.6	0.0265	1.5	10.0	0.0768
2.5	6.0	0.0296	2.5	10.8	0.0858	2.5	11.4	0.0993
4	6.5	0.0331	4	11.9	0.0964	4	12.5	0.1114
6	7.0	0.0370	6	13.0	0.1078	6	13.7	0.1248
10	8.3	0.0468	10	15.7	0.1398	10	16.4	0.1578
16	9.0	0.0525	16	17.4	0.1589	16	18.5	0.1871
25	10.6	0.0691	25	21.2	0.2441	25	22.3	0.2678
35	11.6	0.0774	35	23.4	0.2696	35	24.1	0.2907
50	13.2	0.0938	50	23.6	0.2730	50	25.9	0.3201
70	15.1	0.1145	70	27.0	0.3299	70	29.9	0.3958
95	16.8	0.1325	95	30.1	0.3827	95	33.8	0.4701
120	18.5	0.1559	120	33.5	0.4562	120	37.4	0.5610
150	20.6	0.1915	150	37.3	0.5727	150	41.2	0.6797
185	22.8	0.2308	185	41.3	0.6985	185	46.2	0.8274
240	25.4	0.2751	240	46.7	0.8649	240	51.9	1.0103
300	30.1	0.3551	300	50.3	0.9897	300	57.5	1.1943

Continuous table of table 7

4 cores			5 cores			(4+1) cores			(3+2) cores
Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m	Cross section mm2	Diameter mm	Nonmetal content l/m
1.5	10.7	0.0912	1.5	11.5	0.1042
2.5	11.7	0.1019	2.5	12.6	0.1166	2.5	12.4	0.1141	2.5	12.2	0.1116
4	12.8	0.1151	4	13.9	0.1354	4	13.6	0.1284	4	13.3	0.1255
6	14.0	0.1316	6	15.2	0.1513	6	15.0	0.1481	6	14.7	0.1450
10	17.2	0.1671	10	18.7	0.1935	10	18.0	0.1842	10	17.3	0.1786
16	19.0	0.1896	16	20.7	0.2194	16	20.7	0.2235	16	20.3	0.2221
25	23.2	0.2833	25	25.5	0.3300	25	24.6	0.3152	25	23.7	0.3004
35	25.6	0.3138	35	28.4	0.3761	35	26.8	0.3439	35	25.4	0.3219
50	26.2	0.3375	50	28.9	0.4069	50	26.6	0.3616	50	26.2	0.3442
70	30.5	0.4250	70	33.9	0.5098	70	31.1	0.4606	70	30.4	0.4238
95	34.4	0.4962	95	38.1	0.6016	95	48.1	0.5398	95	34.1	0.5136
120	38.0	0.5901	120	41.7	0.7114	120	54.1	0.6370	120	37.3	0.6097
150	42.3	0.7309	150	46.4	0.8879	150	61.7	0.8010	150	41.8	0.7331
185	46.9	0.8906	185	52.1	1.1009	185	48.1	0.8073	185	46.9	0.9085
240	53.1	1.0996	240	58.3	1.3172	240	54.1	0.9972	240	52.7	1.0924
300	59.4	1.3031	300

Delivery length
The delivery length of the cable should not be less than 100m, and the measurement error should not be greater than 0.5%. It is allowed to deliver short cables with a length of not less than 20 meters, and the quantity should not exceed 10% of the total length of delivery.
According to the agreement between the two parties, any length of cable is allowed to be delivered.
Packaging signs and transportation
The cable should be properly packaged on a cable reel for delivery. The length of the cable extension should not be less than 300mm, and the end should be reliably sealed with a cable jacket.
Each cable package should be accompanied by a product quality certificate. The certificate should be placed in an impermeable bag and fixed on the side of the cable reel.　　　　　　　　　　　　　　　　
Each outer cable tray should be marked:
Length m Manufacturing Date: Year Month
Standard number
Gross weight kg:
The symbol that indicates the correct rotation direction of the cable reel. Transport and storage
Reel does not allow flat
During transportation, it is strictly forbidden to lower the cable reel with cables from a high place, and it is strictly forbidden to lose the cables mechanically.
When hoisting packages, it is strictly forbidden to hoist several trays at the same time. On vehicles, ships and other transportation tools, the cable reel must be placed firmly and fixed with a suitable method to prevent mutual collision or overturning.

Flame-retardant wire and cable

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