Semiconductor Fuse And Ferrite
Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.
Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.
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All Aluminum Conductor(AAC)& Aluminum Conductor Steel Reinforced(ACSR))for ASTM (AAC, ACCR, AAAC, ACSR) Generally Confirming to IS 398 (Part-I, II, IV), IEC-228
(AAAC) Conductor as per ASTM-B-399-1992
(AAAC) Conductor as per BS-3242-1970
(AAAC) Conductor IS: 398-IV-1994
(ACSR) as per ASTM-B-233-1992
(AAC) as per BS-215-1-1970
(AAC) as per IS-398-1: 1976
(AAC) as per ASTM-B-231-1990
(ACSR) as per IS: 398-II: 1976 & IS: 398-V: 1992
(ACSR) BS-215-II-1970
(AACSR) as per IEC-1089-1191
AAC(All aluminum conductor) are suited for overhead power line.
We can supply this conductor according to different recognized standards, such as IEC61089, BS215, BS EN 50182: 2001, STM B231, CSA C49, DIN480201, JIS C3109, customer special specification also can be satisfied.
ACSR or ACSR cable or ACSR conductor used for Overhead electrical distribution and transmission lines for distributing power
Applications
Used as bare overhead transmission cable and as primary and secondary distribution cable. ACSR offers optimal strength for line design. Variable steel core stranding enables desired strength to be achieved without sacrificing ampacity.
Construction
Aluminum alloy 1350-H-19 wires, concentrically stranded about a steel core. Core wire for ACSR is available with class A, B, or C galvanizing; ""aluminized"" aluminum coated (AZ); Or aluminum-clad (AW). Additional corrosion protection is available through the application of grease to the corer or infusion of the complete cable with grease.
Specifications
ACSR bare conductor meets or exceeds the following ASTM specifications:
B-230 Aluminum Wire, 1350-H19 for Electrical Purposes
B-231 Aluminum Conductors, Concentric-Lay-Stranded
B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR)
B-341 Aluminum-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)
B-498 Zinc-Coated Steel Core Wire for Aluminum Conductors, Steel Reinforced (ACSR/AZ)
B-500 Zinc Coated and Aluminum Coated Stranded Steel Core for Aluminum Conductors, Steel Reinforced (ACSR)
Notes
Resistance is calculated using ASTM standard increments of stranding and metal conductivity of 61.2% IACS for EC (1350) and 8% IACS for steel. AC (60Hz) resistance includes current dependent hysteresis loss factor for 1 and 3 layer constructions.
Current ratings are based on 75oC conductor temperature, 25oC ambient, 2ft/s wind, 96/watts/sq. Ft sun, 0.5 coefficients of emissivity and absorption.