Buy armoured cable notes
Choosing the appropriate type wire and cable is the premise to ensure the safe use of electricity. Select the type of wire and cable, should consider the use, laying conditions and power lines can carry the safety range, etc. Choice of wire and cable specifications should consider heating, voltage loss, economic current density, mechanical strength and other conditions.
 
According to the experience, low-voltage power line due to the load current is bigger, so the first general according to conditions of the heating section selection and check the voltage loss and mechanical strength; low voltage lighting line because of its high requirements on the voltage level, first according to the permissive voltage loss condition selection section, then checking the hair thermal conditions and mechanical strength; for high voltage transmission lines, according to economic current density section selection and check the heating conditions and allow voltage loss; and high voltage overhead line, also be considered its mechanical strength. If the user does not have any experience, the views of the relevant professional units or persons should be consulted.
 
General wire and cable specifications for the next table:
 
Conductor cross section mm2 Copper core PVC insulated cable temperature 25 ℃ aerial installation 227 IEC 01(BV) Copper core PVC insulated power cable directly buried installation environment temperature 25 ℃ VV22-0.6/1 (3+1) Steel reinforced aluminium conductor temperature 30 ℃ overhead laying LGJ
Allow the current carrying capacity  A Capacity  kW Allow the current carrying capacity A Capacity  kW Allow the current carrying capacity A Capacity kW
1.0 17 10        
1.5 21 12        
2.5 28 16        
4 37 21 38 21    
6 48 27 47 27    
10 65 36 65 36    
16 91 59 84 47 97 54
25 120 67 110 61 124 69
35 147 82 130 75 150 84
50 187 105 155 89 195 109
70 230 129 195 109 242 135
95 282 158 230 125 295 165
120 324 181 260 143 335 187
150 371 208 300 161 393 220
185 423 237 335 187 450 252
240     390 220 540 302
300     435 243 630 352


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