measuring insulation resistance, resistance decreases with the increase of test voltage. The higher the voltage, the higher the degree of polarization of the insulating material under test, the movement of ions to the faster, the greater the conductive currents, which will reduce insulation resistance....
Cable structure check, usually including conductor structure check, (foreign economic, pitch, monofilament diameter), extruded insulation and the sheath inspection (average thickness, the thinnest point and extruded overseas economic cooperation), and the covering layer of check, such as shielding copper wire or copper strip dimension inspe...
The Transmission Company of Nigeria (TCN) says it has lost one of its 330kV transmission lines from Sapele to Ughelli in Delta State to a fire incident caused by a petrol tanker at about 9:42am on Sunday, 9th March, 2014.
The melting and snapping of all of the line conductors between the two towers caused a loss of balance along the transmission line and th...
The building power cable is always fire flam resistance power cable, the fire protection system is always use fire resistance power cable.
In brief, fire flam resistance power cable is that whose insulation can burning, but when the source of fire is moved, the cable will be self-extinguishing.it may be can’t work when it is burning, but it can s...
This kind of cable is applicable for transmitting signal, controlling and measuring of electrical applicances and instruments in the power distribution units. And it is used in power stations, nuclear power plant, underground railway, petrochemical factory, channel, tallbuilding and so on.
The maximum of allowable long-time working temperature...
Instrumentation cable-CY Cables are widely used and popular in the cable market.And for the Instrumentation Cable-CY Cables, CY means Copper wire braid screen between the inner and outer sheath,the covering should not lower than 85% as common.
The cable conductor is flexible Copper wires Class 5 according to IEC 60228.We can often known that the in...
Are you using the best cable for the job? You may have heard terms like RG59, RG6, RG11, and Slim RG59 but you didn't know what they meant. There is actually a real difference between these categories of cables and in this series, we'll explain everything there is about choosing a cable.
What is a coaxial cable?
Everyone knows what a coa...
On Sunday, the mobile phone connections in the east and west of Libya have been severely disrupted, which is due to the marine cable and land type cable were critically disabled in the two regions in same time.
Libya’s Deputy Minister of Communications Mohammed Belras Ali said the underwater cables between Homs and Misurata were damaged becaus...
Known as” The No.1 Leisure Place of Thaihang Mountains”, Wujiawan tourist area locates in the Lingchuan Town, Jincheng City of Shanxi Province, also share common border with Henan Province in the deep Mountain. It is always renowned for the natural landscape and honest folk. As an undeveloped village, it has attracts many tourist from...
