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FIRE-RETARDANT COMMUNICATION CABLES FOR COAL MINES(Signal electric cable)

��Ʒ��;:��Ʒ������ú���¼�⡢����ϵͳ����Ƶ�źŴ����ߡ�

Scope of application:The product is suitable for the coal mine mine shaft monitor, the control system makes the low-frequency signal transmission line

ִ�б�׼ Standards implemented: Q/3210HL07-2005

�ͺ����Ƽ�ʹ�÷�Χ Model descriptions and Use scope

�� ��
Model
�� ��
Descriptions
ʹ �� �� Χ
Use scope
MHYV(PUYV) ú���þ���ϩ��Ե������ϩ����ͨ�ŵ���
PE insulated PVC sheathed communication cables for coal mine
���ھ���ƽ�б�P������������ͨ�źŴ���
Used in level; or slanted channels and power house
MHYVR(PUYVR) ú���þ���ϩ��Ե������ϩ����ͨ�ŵ���
PE insulated PVC sheathed communication cables for coal mine
���ھ���ƽ�б�P������������ͨ�źŴ���
Used in level; or slanted channels and power house
MHYVP(PUYVP) ú���þ���ϩ��Եͭ˿��֯���ξ�����ϩ����ͨ�ŵ���
PE insulated copper wire weave shielded PVC sheathed communication cables
���ھ��¸��Žϴ�ij������źŴ���
Served in coal mine where interference is strong
MHYVRP(PUYVRP) ú���þ���ϩ��Ե������ϩ����ͭ˿��֯����ͨ�������
PE insulated copper wire weave shielded PVC sheathed communication soft cables
���ھ��¸��Žϴ�ij������źŴ���
Served in coal mine where interference is strong
MHYBV(PUYV31) ú���þ���ϩ��Ե��п��˿��֯��װ������ϩ����ͨ�ŵ���
PE insulated tinned steel wire weave armored PVC sheathed communication cables
���ھ���ƽ���б�������źŴ����ܳ���һ���Ļ�е�����
Served in level and slanted channels where the mechanic impact is strong
MHY32 (PUYV39��39-1) ú���þ���ϩ��Ե������ϩ���׸�˿��װͨ�ŵ���
PE insulated steel wire armored PVC sheathed communication cables
����������б�������źŴ����ܳ��ܽϴ������
Served as major signal line in shaft or slanted shaft in coal mines,capable of being under considerable pull force

ʹ������ Service characteristics

���³�����������¶�
Long-term service temperature of the cable conductor
70��
���·����¶� Cable laying temperature ��0��
+25��ʱ�������ʪ�� Environment relative humidity at 25�� ��95%
���µĴ���Ƶ�� Transmission frequency of cable ��30KHz
���µ���С�����뾶 Minimun bending radius MHYVR��MHYVRP�͵���Ϊ�����⾶��10���������ͺ�Ϊ�⾶��15��
10 times of the cable outer diameter of MHJYV, and 15times for the rest

���½ṹʾ��ͼ
IIIustration of cable structure

 

���¹�� Specifications

�� ��
Model
��׼���� Nominal sectional area(mm2)
0.5
0.75
0.8 1.0
1.5
0.5
0.75
0.8
1.0
1.5  0.5
0.75
0.8
1.0
1.5
-
о ��Core No.
�� ��Pair No.
����ṹConductor structure
MHYV
2-7
2-10
1/0.8
7/0.30
1/0.97
7/0.37
-
1/1.13
7/0.43
1/1.38
7/0.52
MHYVR
2-7
2-10
-
42/0.15
-
32/0.20
48/0.20
MHYVP
2-7
2-10
1/0.8
7/0.30
1/0.97
7/0.37
-
1/1.13
7/0.43
1/1.38
7/0.52
MHYVRP
2-7
2-10
-
42/0.15
-
32/0.20
48/0.20
MHYBV
2-7
2-10
-
1/0.97
7/0.37
42/0.15
1/1.0
1/1.13
7/0.43
32/0.20
1/1.38
7/0.52
48/0.20
MHY32
-
3-7
2-19
-
1/0.97
7/0.37
-
1/1.13
7/0.43
1/1.38
7/0.52

������Ҫ�������� Major technical performances

1�����µ���ֱ������͵��¹���˥�� DC resistance of the conductor and Intrinsic attenuation

�� �� Model
��ƽ���
Nominal sectional area
mm2
�� �� �� �� Conductor structure
20��ʱ����ֱ������
DC resistance of the conductor at 20��
(�ܦ�/Km)
����˥�� Intrinsic attenuation
(800Hz) (��dB/Km)
�� �� Type
����/���߱��ֱ�� PC.No./Single track diameter(mm)

MHYV
MHYVR

MHYVRP
MHYVP

MHYBV
MHY32

0.5
1
1/0.8
36.0
1.0
2
7/0.30
36.0
0.75
1
1/0.97
24.5
0.8
2
7/0.37
24.5
6
42/0.15
26.0
0.8
1
1/1.0
25.8
0.7
1.0
1
1/1.13
18.1
0.65
2
7/0.43
18.1
5
32/0.20
19.5
1.5
1
1/1.38
12.1
0.5
2
7/0.52
12.1
5
48/0.20
13.3

2������������Ҫ�������� Other major technical performances

(�ͺ� Model:MHYV��MHYVR��MHYVRP��MHYVP��MHYBV��MHY32)

�� ��
Serial number
��ĿItems
��������
Technical performances
1
+20����о����ֱ������(�ܦ�/Km) Line core DC resistance at 20�� ���ϱ� See above table
2
���¹���˥��(��dB/Km) Cable intrinsic attenuation ���ϱ� See above table
3
+20���Ե����(��M�� Km) Insulating resistance at 20�� 5000
4
lmin��Ƶ������ѹ����
lmin power frequency alternating current pressure test
о-о
Core - core
о-����
Core - hield
1500V������(50Hz)
1500V Does not penetrate
5
���¹�������(�ܦ�F/Km) Cable service capacity 0.06(800Hz)
6
Զ�˴���˥��(��dB/500) Far-end crosstalk attenuation 70(800Hz)
7
���(�ܦ�H/Km) Inductance 800(800Hz)
8
������ֱ�������(��%����) DC resistance difference 2
9
������ֱȼ������ Combustion for single cable test MT386
10
����ȼ������ Combustion for bunched cable test ����GB/T18380��׼��B�����ȼ������Ҫ��
Conforms to GB/T18380 standard B kind becomes ties




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