1. Scope 1.1 General This Standard sets forth the general requirements for seismic qualification of CANDU Nuclear Power Plants. It applies to all structures and systems of the CANDU Nuclear Power Plant that require seismic qualification based on

定价： 819元 / 折扣价： 697 元

1. Scope This Standard covers the pressure preservative treatment of wood shakes and shingles of Western Red Cedar, Lodgepole Pine, and Southern Yellow Pine using chromated copper arsenate (CCA).

定价： 364元 / 折扣价： 310 元

1. Scope 1.1 This Standard covers burned clay brick intended for use in masonry or in structural facing components of structures, or both. 1.2 The brick are prismatic units available in a variety of sizes, textures, colours, and shapes. This Stan

定价： 364元 / 折扣价： 310 元

1. Scope and Objectives 1.1 Scope This Standard applies to suspension and dead-end composite insulators used on ac overhead transmission lines with a nominal voltage 69 kV or greater and a frequency not greater than 100 Hz. 1.2 Objectives The

定价： 592元 / 折扣价： 504 元

2. Scope and Field of Application 2.1 Type of Equipment This Standard applies to welded composite enclosures of cast and wrought aluminium and aluminium alloy enclosures pressurized with dry air, inert gases, eg, sulphur hexafluoride, carbon tetraflu

定价： 910元 / 折扣价： 774 元

This PDF includes GI 2. 1. Scope 1.1 This Standard applies to commercial refrigerator, refr igerator-freezer cabinets that are intended for storing and holding food products and other perishable merchandise. 1.2 This Standard applies to (a) man

定价： 501元 / 折扣价： 426 元

1.1 Scope This International Standard states the requirements for both self-healing and non-self-healing continuously rated a.c. capacitors of up to and including 2.5 kvar, and not less than 0.1 μF, having a rated voltage not exceeding 1 000 V, which a

定价： 910元 / 折扣价： 774 元

1. Scope This standard covers ballasts, excluding resistance types, for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with or without pre-heated cathodes operated with or without a starter or starting d

定价： 1456元 / 折扣价： 1238 元

1. Scope This standard specifies safety requirements for ballasts for discharge lamps such as high-pressure mercury vapour, low- pressure sodium vapour, high-pressure sodium vapour and metal halide lamps. Section One specifies general requirements and

定价： 910元 / 折扣价： 774 元

1. Scope This standard specifies general and safety requirements for starting devices (starters and ignitors) for tubular fluorescent and other discharge lamps for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz which produce starting pulses not g

定价： 910元 / 折扣价： 774 元

1. Scope This standard specifies general and safety requirements for electronic ballasts for use on a.c. supplies up to 1000 V at 50 Hz or 60 Hz with operating frequencies deviating from the supply frequency, associated with tubular fluorescent lamps a

定价： 1047元 / 折扣价： 890 元

1. Scope 1.1 This Standard describes zinc-coated steel wire strand suitable for use as guys, suspension strand, span wires, and overhead ground wire strand. Overhead ground wire strand for electric power transmission is produced free of wire joints.

定价： 364元 / 折扣价： 310 元

1. Scope 1.1 This Standard pertains to wood-based panel products, designed and manufactured for protected construction uses as roof sheathing, wall sheathing, and floor sheathing in light frame construction applications. Construction Sheathing panels

定价： 728元 / 折扣价： 619 元

This PDF includes Technical Corrigendum 1 1. Scope 1.1 This Standard applies to electrical aids intended to be used by physically disabled persons to facilitate their ability to communicate with others, alter the state of their environment, and to p

定价： 319元 / 折扣价： 272 元

1. Scope 1.1 This Standard covers procedures for the sampling and testing of brick for size and warpage, modulus of rupture, compressive strength, absorption, saturation coefficient, effect of freezing-thawing, initial rate of absorption, and efflores

定价： 364元 / 折扣价： 310 元