Sp23
BS EN 60146-1-1-1993 Semiconductor convertors — General requirements and line commutated
BS 7448-1, 1991 - Fracture Mechanics Toughness Tests. Part 1
IS 2165 Part1-1977 Ins Coord - Phase to earth.pdf
NZS 4541-2007
ISO 1463
BS 970 Part 3 1991.pdf
BS 970 Part3 Specification for Wrought Steels for Mechanical and Allied Engineering Purposes
As nzs 3008.1.1-2009(+a1) - cables to 0.6-1k v uc
is.436.1.1.1964
BS7671 Formula and Tips. The earth fault loop impedance of that part of the system external to the installation. Ze = the external earth fault loop impedance.
