Product features

　　Excellent optical properties and mechanical properties, it can be used for shallow / deep sea region

　　High tensile strength design. There are single and double armored structures to choose from to suit different demands.

　　Extruded lead sheath, so that it has more excellent water-proof performance.

　　Center beam tube, Stranded loose tube structure design, single submarine cable can up to 18 km long.

　　Optical fiber cores can up to 144.

　　Dense design and compact bending radius make the cable easy to grip, inventory and installation.

　　Structure schematic diagram

　　Strengthening core

　　Possible filled bar

　　Cable paste filler

　　Colored fiber

　　Loose tube

　　Water-proof inner layer

　　Inner steel wire

　　Inner PE sheath

　　Extruded lead sheath

　　Outer PE sheath

　　Double steel wire

　　Outer sheath

　　Main technical performance parameters

Serial number	Property name	Unit	Performance index
1	Attenuation at 1310nm  at 1550nm	dB/km	≤0.36  ≤0.22
2	Dispersion	ps/nm·km	≤18
3	The long term tension	kN	According to customer demand
4	Short term tension	kN	According to customer demand
5	Permitted minimum bending radius	mm	30 times the diameter of the fiber
6	Work and storage temperature	-	－30～+60

　　Submarine power cable with three cores (optical fiber composite cable)/HYJQ41 HEQ41 (HYJQ41+OFC HEQ41+OFC)26/35kV

Conductor cross-section mm2	Screen cross-section mm2	Conductor resistance DC20℃Ω/km	Conductor resistance AC90℃Ω/km	Capacitance uF/km		Inductance mH/km	Ratings reference A		Conductor temperature of 90 ℃, a second short-circuit current KA
				XLPE	EPR		“J”pipe	Buried	conducto	screen
50	137	0.387	0.4936	0.1150	0.1507	0.4018	180	175	7.31	4.0
70	143	0.268	0.3420	0.1263	0.1655	0.3865	220	215	10.2	4.2
95	150	0.193	0.2465	0.1368	0.1793	0.3735	270	255	13.6	4.4
120	155	0.153	0.1966	0.1460	0.1913	0.3637	310	300	17.2	4.5
150	161	0.124	0.1587	0.1563	0.2048	0.3540	355	335	21.5	4.7
185	167	0.0991	0.1271	0.1665	0.2182	0.3456	400	375	26.5	4.9
240	175	0.0754	0.0971	0.1805	0.2365	0.3365	460	430	34.5	5.2
300	215	0.0601	0.0778	0.1945	0.2548	0.3280	525	480	42.9	6.3
400	229	0.0470	0.0614	0.2146	0.2812	0.3256	615	550	57.2	6.7

　　Note: Shield is the lead sheath Condition: Conductor without coating, single loop, Buried in soil, Conductor working temperature of 90 degrees Celsius, the soil temperature of 25 degrees Celsius, the soil resistance 1.0k.m/W, parallel laying, laying spacing is 2 times of the cable diameter, laying depth 1 meters Tube ambient temperature 40 degrees celsius.

　　The single core 110kvHYJQ41 submarine power cable

Conductor cross section mm2	Shielding section mm2	Conductor resistance DC20℃Ω/km	Conductor resistance AC90℃Ω/km	Capacitance uF/km		Inductance mH/km	Reference value of load flowA		The conductor temperature90℃，1 seconds short circuit currentkA
				XLPE	EPR		“J”Tube	Buried	Conductor	Shield
240	540	0.0754	0.0968	0.130	0.171	0.6720	370	333	34.5	15.9
300	559	0.0601	0.0781	0.141	0.185	0.6497	425	381	42.9	16.5
400	590	0.0470	0.0615	0.162	0.213	0.6210	490	432	57.2	17.5
500	607	0.0366	0.0485	0.182	0.239	0.5988	570	495	71.5	17.9
630	650	0.0283	0.0385	0.201	0.265	0.5733	655	561	90.1	19.2
800	708	0.0221	0.0310	0.224	0.295	0.5478	795	654	114	20.9
1000	799	0.0176	0.0260	0.252	0.331	0.5255	900	735	143	23.5
1200	860	0.0151	0.0233	0.268	0.352	0.4969	985	792	172	25.3
1400	925	0.0129	0.0185	0.282	0.370	0.4873	1075	849	200	27.3
1600	986	0.0113	0.0163	0.295	0.287	0.4778	1150	903	229	29.1

　　Note: Shield is the lead sheath Condition: Conductor without coating, single loop, Buried in soil, Conductor working temperature of 90 degrees Celsius, the soil temperature of 25 degrees Celsius, the soil resistance 1.0k.m/W, parallel laying, laying spacing is 2 times of the cable diameter, laying depth 1 meters Tube ambient temperature 40 degrees celsius.

　　Transportation, installation and Application

　　1, cable package adopts roller or tray form, according to the cable voltage grades, specifications and delivery length selection.

　　2, attention should be paid to prevent the collision, the cable is too small bend in the transportation and the laying of the construction process, so as to avoid damage to the cable.

　　3, in the transport of the cable laying, and use of the process, the end head of a reliable seal, preventing water from entering the cable core, affect the service life of the cable.

　　Installation preparation

　　Geological structure with detection cable laying on the path that shall be before laying the cable, the cable laying on the path of exposed bedrock, rapids and other destructive geological structure of cable, cable to take protective measures to cope with the appropriate.

　　The cables should be checked before shipment cable package has no damage, cable whether mechanical damage; shipment shall check the cable insulation resistance, capacitance, Conductor resistance, lead sheathed resistance electric performance is good, whether to meet the requirements of optical fiber Attenuation.

　　The press cable end lead sealing requirements for sealing and installation of cable traction head.

　　The prepared cables and cable sealing cutting tool material and tool.

　　The cable laying

　　All kinds of mechanical operation by laying - check before laying is normal, the electric equipment is safe and reliable, if any abnormal situation should immediately rule out.

　　The laying machine reel diameter and into the water wheel diameter shall not be less than 3 meters.

　　The laying of cables under lateral pressure is not more than 300kg/m.

　　The cable shall not exceed the maximum recommended pressure.

　　Should deviate from the regular measurement of laying cable routing - range with a predetermined laying process, modified at any time, to ensure the cable cast in the selected routing.

　　The suggestion of draw cable laying routing topographic map, laying process should always correcting cable ship position, and note the position after the cable laying, and pay attention to laying tension, into the water after the release, cable length, laying distance at any time to proofread the adjustment. As far as possible to avoid the cable tight cast in Yu Hai (cable suspended form the suspension state become cable local severe wear of the premises) and too loose (forming tendency to twist), to keep a little tension cable laying process, according to the different water depth, speed to change the water entry angle. Suggested step when the cable water entry angle control in 50 ~ 60 degrees.

　　The installation is installed, should send divers to check whether there is cable along the cable twisting, if twisting, it must be the twisting part straightened.

　　The cable laying the minimum bending radius: 20 times the single core cable should not less than 15 times of cable diameter; three core cable should not less than the diameter of the cable.

　　The cable performance test and acceptance

　　The cable laying after finish, performance testing deal with cable, including the insulation resistance, capacitance, Conductor resistance, lead sheathed resistance, fiber Attenuation.

　　The press mounting process requires the installation of cable terminal and cable terminal. After the installation of the entire system response test.

　　The handover test of cable, including DC withstand voltage test, insulation resistance test.

　　The use of characteristics

　　The cable long-term operating temperature (i.e. cable conductive wire core work long-term temperature allowed) shall not be more than 90 DEG C, short-term overload temperature shall not exceed 130 DEG C, short-circuit temperature not exceeding 250 degrees, the maximum duration of short circuit should not exceed 5 seconds.

　　The single core armored cable with reduced magnetic loss structure.

　　Crosslinked polyethylene I company can also be based on user demand for design and production of other types of insulated submarine cable.

　　Correction coefficient of carrying capacity

　　Different environment temperature download traffic influence coefficient (35kV and below)

Conductor Working temperature℃	The temperature of the environment℃（In soil）
	10	15	20	25	30	35
90	1.11	1.07	1.04	1.00	0.96	0.92

　　Different environment temperature download traffic influence coefficient(110~220kv)

Conductor Working temperature℃	The temperature of the environment℃（In soil）
	10	15	20	25	30	35	40	45
90	1.07	1.03	1.00	0.96	0.93	0.89	0.84	0.8

　　The coefficient of air temperature on the impact of load flow (35kV and below)

The air temperature℃	10	15	20	25	30	35	40	45	50
Influence coefficient	1.26	1.22	1.18	1.14	1.09	1.04	1.00	0.94	0.89

　　The coefficient of air temperature on the load flow effect(110~220kv)

The air temperature℃	5	10	15	20	25	30	35	40	45	50	55
Influence coefficient	1.24	1.21	1.16	1.13	1.08	1.04	1.00	0.95	0.90	0.85	0.80

　　Effects of different load flow coefficient of soil resistance coefficient (35kV and below)

Voltage（kv)	Sectionmm²	The soil resistance coefficient（K,m/W)
		0.8	1.0	1.2	1.5	2.0
6/10-2/15	50-50 ≥185	1.06	1.00	0.94	0.88	0.79
		1.07	1.00	0.93	0.86	0.77
12/20-6/35	≤95 ≥120	1.05	1.00	0.95	0.90	0.82
		1.06	1.00	0.94	0.83	0.80

　　Effects of different load flow coefficient of soil resistance coefficient(110~220kv)

Thermal resistance coefficient k.m/W	0.7	1.0	1.2	1.5	2.0	2.5	3.0
Influence coefficient	1.14	1.00	0.93	0.84	0.74	0.67	0.61

　　Effect of Buried on load flow depth

Laying depthm	0.50	0.70	0.90	1.00	1.20	1.50
Influence coefficient	1.10	1.05	1.01	1.00	0.98	0.95

　　Effects of single loop laying spacing on load flow(110~220kv)

Laying spacing mm	D	D+70	200	250	300	350	400	Note: D is the diameter of the cable
Influence coefficient	0.93	1.00	1.03	1.05	1.07	1.08	1.10

　　Note: the above parameters, because the cable under the sea environment is superior, so according to determine land conditions.