Rechercher

Specifies: the definitions of data element types for electric components and materials used in electrotechnical equipment and systems; the definitions of component classes with associated classification scheme; the definition of the terms used to clarify this classification scheme. The collection of data element types from this standard are meant for use in computerized systems for component…

1. SCOPe 1.1 This standard contains requirements and test methods for rigid expanded polystyrene insulation in the form of pipe covering and boards made by moulding (EPS) or extrusion (XPS) of expandable polystyrene beads. The standard covers four types of rigid expanded polystyrene distinguished on the basis of their material properties. Products manufactured to this Standard are…

SCOPE This standard establishes methods of testing and rating gas-fired, heat pumps for space-conditioning performance. The procedures apply to factory-made, space-conditioning, unitary heat pumps which utilize gas as the primary fuel. This includes engine-driven heat pumps, absorption-cycle heat pumps, desiccant-type heat pumps, and other gas-fired heat pumps. The heat source/sink for…

1.1 SCOPE 1.1.1 This standard applies to newly produced combination gas controls (see Definitions, Part IV), hereinafter referred to as controls, constructed entirely of new, unused parts and materials. 1.1.2 The combination control may include other functions such as pilot gas filters, pressure switches, etc., which shall be of an approved type (see Definitions, Part IV), or shall be…

1.1 SCOPE 1.1.1 This standard applies to newly produced, gas-fired, heat activated, air conditioning and heat pumping appliances, hereinafter referred to as appliances, constructed entirely of new, unused parts and materials, which are designed to supply conditioned air; heated and/or cooled liquid; or refrigerants, gases, solids, or liquids to spaces remote from or adjacent to the…

Covers terms which are specifically relevant to telecontrol techniques as well as other terms which are necessary for the understanding of telecontrol standards. Is a technical report of type 3.

1. Scope Note: Pipe made to this Standard should not be used in the production of fabricated fittings, due to the lack of field data. 1.1 This Standard describes requirements and test methods for materials, dimensions, quality of work, pipe stiffness, quality control, joining systems, and marking for SDR 28, 35, and 41 multilayer PVC sewer pipe (PSM type). Note: Industrial waste…

IEC 60317-44:1997 specifies the requirements of tape wrapped rectangular copper winding wire of class 240. The insulation consists of one or two wrappings of aromatic polyimide tape. Class 240 is a thermal class that requires a temperature index of 240 and a heat shock temperature of at least 260 °C. NOTE In some countries, e.g. Canada, Russia, USA, this product is assigned a class 220. The tape…

IEC 60317-43:1997 specifies requirements of tape wrapped round copper winding wire of class 240. The insulation consists of one or two wrappings of aromatic polyimide tape. Class 240 is a thermal class that requires a temperature index of at least 240, and a heat shock temperature of at least 260 °C. NOTE In some countries, e.g. Canada, Russia, USA, this product is assigned a class 220. The tape…

This part 2 of IEC 61558 applies to associated power transformers for switch mode power supplies, single-phase or polyphase, air-cooled: separating transformers; isolating transformers; safety isolating transformers, 10 kVA for single-phase transformers; 16 kVA for polyphase transformers. This standard is applicable to dry type transformers. The windings may be encapsulated or non-…