Protection against corrosion by stray current from direct current systems Ingestion-build-96603 ventilating fans and regulators for

ventilating fans and regulators for household and similar purposes

A hardening up of all the metric dimensions to replace the soft metric equivalents of the inch dimensions in BS 4894:1973

in the mining industry

according to normal distributions

Protection against corrosion by stray current from direct current systems Ingestion-build-96603 ventilating fans and regulators for1 Scope This standard establishes the general principles to be adopted to minimize the effects of stray current corrosion caused by direct current (d. c.) on buried or immersed metal structures. The standard is intended to offer guidance for: the design of direct current systems which may produce stray currents; the design of metal structures, which are to be buried or immersed and which may be subject to stray current corrosion; the selection of