Lsf Jacket Micc Cable

mineral insulated cable manufacturing standards:
1, GB/T13033-2007 rated voltage 750V and below mineral insulated cable and terminal
2, IEC60702-2002 rated voltage not exceeding 750V mineral insulated cable and terminal
3, BS6207-2001 rated voltage 750V and below mineral insulated cable
Characteristics of standard two, mineral insulated cables:
1, BS6387:1994 performance criteria used to keep the cable circuit complete fire conditions (UK)
2, the Ministry of public security fire standards GA306.1~306.2-2001Combustion test
3, IEC60332-3 cables under fire conditionsCombustion test
4, GB/T18380.1-.3-2001 cables under fire
conditionsSmoke density 5, GB/T17651.2-1998 cables burning under the specific conditions of determinationTest
product gas burning 6, GB/T17650.2-1998 from the cable material
7 test methods, GB/T19216-2003 wire and cable refractory properties
8 test methods, IEC60331 wire and cable refractory properties9, UL21
96 cable fire resistance test (the United States)
10, IEC60754-2 acidic and corrosive gases.
11, IEC60134-2 smoke density test

Standard application three, mineral insulated cables
1, GB50045-2005 fire protection design of tall buildings
2, GB50016-2006 code for fire protection design of buildings
3, JGJ16-2008 code for electrical design of civil buildings
4, the GB50217-2007 power engineering design specification
5, Code for design of automatic fire alarm system, GB50116-98
6, GB50157-2003 code for Metro Design
7, the GB50067-97 garage, garage, parking for fire protection design
8, GB50333-2002 hospital, clean operation construction technical specification
9, DBJ50-054-2006 large commercial building code for fire protection design (Chongqing)
10, DG/TJ08-2048-2008 building electrical fire prevention design rules
11, GY5067-2003 radio and television building code for fire protection design
12, BS5345 for electrical device may have explosive gas environment selection, installation and maintenance of the customary rules
Fire detection and alarm 13, AS2293 building
Equipment and elevator fire 14, AS300 rules
15, GB/T16895.15-2002 building electrical equipment and wiring system load flow
16, 09D101-6 mineral insulated cable
17, building standard 08ZD02 Journal of Central South Area Design of electric Atlas Installation requirements
18, BS7671 electrical (UK) 

The following conditions shall be adopted with plastic sheath mineral insulated cable
1.1 cable laying in a corrosive effect on copper sheath environment.
1.2 buried or pipe laying.
1.3 laying in non-technical space building, there are beautiful places that need. Fireproof requirement place, should be plastic sheath low smoke halogen-free used.

2, the choice of specification
2.1 according to the laying cable cable, determine the maximum temperature, the reasonable selection of the carrying capacity of the cable, determine the cable specifications.
2.1.1 mineral insulated cable in cable temperature there are two different load flow selection: The temperature is 70 ºC ampacity see Table 1, table 3.The temperature is 105 ºC ampacity see Table 2, table 4.
2.1.2 the following installation conditions, should according to the normal working temperature is 70 ºC, the cable ampacity
a. along the wall, bracket, roof and bridge that apply line.
b. and other types of cables laid in the same bridge, shaft, cable channel, cable tunnel line.Other
c. cable sheath due to high temperature is easy to cause injury to personnel or equipment damage location.
2.1.3 cables are installed separately in bridge, cable trench, wearing no trigger places, according to the normal working temperature of 105 ºC using load flow.
Example 1: the computational load for the 1000A line, in accordance with the highest use temperature does not exceed 70 ºC requirements. According to table 3 to select the 400mm2. Delivery length of 60 meters. If the line length greater than 60 meters with 240m2 Shuangpin, delivery up to 99 meters in length, can avoid the use of intermediate connection, longer lines using 240m2 Shuangpin connection. Because of the longer and more harsh line laying conditions. The small size and easy installation of cable. Example 2: according to the calculated load using multi-core cable 4x25mm2, if more than the delivery length of 124 meters, can consider to use 4x (1x25) of single core cable, its delivery length can reach 425 meters. Without intermediate joint.

3, design essentials:
3.1 copper sheath can be PE ground, so no PE line.
3.2 corresponding to the above 16mm2 plastic cable can be reduced using cross-section. If the 4x185+95 design of plastic cable, then the corresponding mineral insulated cable for BTTZ 4X (1X150).
3.3 Shuangpin, spelling generally do not need to consider coefficient.
3.4 use of large cross section cable Shuangpin or spell instead of busbar, which can reduce the engineering investment, increase the safety of the line.
3.5 I used the company's special branch junction box, can realize the cable branch (branch box see P28).