Printed boards - Part 5: Specification for single and double sided printed boards with plated-throug...
Defines the characteristics to be assessed, the test methods to be used and establishes uniform requirements for judging properties and dimensions of single and double sided printed boards with plated-through holes. This standard is intended as a basis on which agreements between purchaser and vendor can be made.
Electrical installations of buildings. Part 5: Selection and erection of electrical equipment. Chapt...
Requires that the performance of the earthing arrangements shall satisfy the safety and functional requirements of the electrical installations. Comprises sections of connections to earth; protective conductors; earthing arrangements for protective purposes, functional purposes, combined protective and functional purposes and equipotential bonding conductors.
Has the status of a basic safety…
Rubber insulated cables of rated voltages up to and including 450/750 V - Part 1: General requiremen...
Gives definitions. Specifies marking, core identification and general requirements for the construction of cables. Appendices describe code designation and calculation method for determination of the thickness of sheath of cable types IEC 53, 57 and 66 of Publication 245-4.