Sunday, May 20, 2012

Cell phone jammer has a large shielding range

The Lithium battery of   cell phone jammer
And below rated voltage 1.9/3.3kV Shearer and similar devices from their power. Cable can be used directly drag. Under the rated voltage 0.66/1.14kV and Shearer and similar devices from their power. However, the cable must be used in the protection chain plate. Under the rated voltage 1.9/3.3kV and Shearer and similar devices from their power.The Lithium battery of   cell phone jammer      can work for 5 hours.  However, the cable must be used in the protection chain plate. Power line core conductor; control line core conductor;  insulation;  semi-conductive shielding layer; within the sheath;  monitor cable core conductor; around the bag for the strengthening layer, to weave Reinforcement (enhanced ground floor double); 8-- outer cable sheath 1 3.2 specification should meet the specifications in Table 2, Table 3 by which the ground conductor nominal cross-section not less than the core provisions of the specifications. Note: the line of control core insulation nominal thickness 0.7mm, no assessment within the sheath thickness.
cell phone jammer has the large coverage area. Technical Requirements conductor single conductor should be tinned surface, the conductor should be consistent with MT 818.1-200x in the provisions of 5.1, the conductor surface should include isolation layer. Note: After the isolation layer sulfide discoloration or embrittlement without examination. 4.1.2 monitor and control the use of wire line core equivalent material or performance enhancing. 4.1.3 monitor the line core with the maximum diameter of not more than 0.21mm tinned copper tow the line of control core insulation around the outside. 2 MT 818.3-200 × 4.2 4.2.1 insulated power conductors and control lines should be consistent with core insulation GB / T 7594.8-1987 in the XJ-30A-based requirements, but tensile strength shall be not less than 6.5MPa. 4.2.2 The insulation thickness shall comply with MT 818.1-200x in this section 5.2.2 and Table 2, Table 3 requirements.    cell phone jammer has a large shielding range. 4.2.3 Insulation resistance at 20 ℃ core power cable insulation resistance should be consistent with Table 4. Control wire core insulation resistance at 20 ℃ should be not less than 100MΩ.km. Table 4 types of insulation resistance wire core nominal cross-section 2 mm 35 50 power cores 70 95 20 ℃ minimum insulation resistance when MΩ. km Rated voltage 0.66/1.14kV 250 250 200 200 Rated Voltage 1.9/3.3kV 400 350 300 250 4.3 4.3.1 Power cable shield should be insulated shield core, semi-conductive shielding layer crowded packages, performance should be consistent in MT 818.1-200x 5.3 requirements. 4.3.2 monitor the cores should be extruded outer semi-conductive shielding layer, the calculated thickness of 0.7mm. 4.3.3 monitor the line core conductor shielded cable with the power transition between the resistive layer should be less than 500Ω. Power cable 4.4 core 4.4.1 Right to be twisted wire core, stranded section diameter ratio should not exceed 8. 4.4.2 Control and monitoring wire core wire core-core on the power lines twisted together into the external space. 4.4.3 The central core cable semi-conductive rubber fill material. 4.5 Extruded inner sheath within a sheath strands of insulated wire core in the outside, the performance should be consistent with GB / T 7594.8-1987 in the XJ-30A-based requirements. The energy consumption of   cell phone jammer is very low. Ground core and monitor the insulation resistance between conductors of not less than 5MΩ. 4.6 Reinforcement Materials 4.6.1 strengthened layer galvanized steel wire and tinned copper tow or twisted structure, galvanized steel wire performance should be consistent with GB / T 343 requirements. Enhanced performance copper layer should meet GB / T 3953 requirements. Coverage requirements should be based on steel and copper wire to determine the diameter and number.

No comments:

Post a Comment