Rechercher

1 Scope This part of IEC 61481 is applicable to portable phase comparators of capacitive type to be used on electrical systems for voltages exceeding 1 kV a.c. and frequencies of 50 Hz and/or 60 Hz. This standard is applicable to: ?? single-pole phase comparators of capacitive type operating with a memory system up to 36 kV a.c., ?? two-pole phase comparators of capacitive type operating with a…

1 Scope This part of IEC 61481 is applicable to portable phase comparators of resistive type to be used on electrical systems for voltages from 1 kV a.c. to 36 kV a.c. and frequencies of 50 Hz and/or 60 Hz. This standard is applicable to phase comparators of resistive type used in contact with the bare conductive parts to be compared: ?? as a complete device including its insulating element or…

1 Scope This part of IEC 61243 is applicable to hand-held two-pole voltage detectors with their accessories (crocodile clips and detachable leads) to be used in contact with parts of electrical systems: – for a.c. voltages not exceeding 1 000 V at nominal frequencies between 16 2 3 Hz and up to 500 Hz, and/or – for d.c. voltages not exceeding 1 500 V. NOTE The a.c. voltages defined in…

1 Scope This International Standard is applicable to electrical insulating gloves and mitts that provide protection of the worker against electric shock. Unless otherwise stated, the use of the term “glove” includes both gloves and mitts. This standard also covers electrical insulating gloves with additional integrated mechanical protection referred to in this document as “composite gloves”. The…

1.1 There is a commentary available for this Clause. This Standard covers the design, construction, operation, maintenance, deactivation, and abandonment of oil and gas industry pipeline systems that convey a) liquid hydrocarbons, including crude oil, multiphase fluids, condensate, liquid petroleum products, natural gas liquids, and liquefied petroleum gas; b) oilfield water; c) oilfield…

1.1 This Standard applies to manually operated and mechanically operated special use switches that are a) for use on dc, ac/dc, or ac only; and b) rated at not more than i) 60 A at 250 V or less; or ii) 30 A or 2 hp at 600 V or less and intended for use in accordance with the Canadian Electrical Code, Part I. 1.2 This Standard does not apply to a) switches forming parts either of…

1.1 This Standard applies to electric supply and communication lines and equipment located entirely outside of buildings and fenced supply stations. 1.2 Existing installations (including maintenance replacements and maintenance alterations) meeting the original designs that currently comply with prior editions of this Standard, need not be modified to comply with this edition of the Standard,…

1.1 This Standard specifies design, testing, and marking requirements for manufactured fall arresters and fixed vertical rigid rails that are used on a vertical or sloped plane. 1.2 The equipment specified in this Standard is intended for use where there is a danger of falling from heights. In the event of fall, the fall arrester will lock on the fixed vertical rigid rail to arrest the fall…

1.1.1.1 This Standard addresses the design and operation of GWPPs for Class I nuclear facilities and uranium mines and mills. Notes: 1) In this Standard, any type of Class I nuclear facility and uranium mine and mill (refer to the definition of nuclear facility in Clause 3.1) is included in the term “nuclear facilities”. 2) Conventional waste management facilities on a Class I nuclear…

1.1 This Standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a) combination temperature and pressure relief valves for use on storage tanks of hot water supply systems without heater input limitation, hereinafter called “T&P” valves; b) valves having only pressure relief features for use on storage tanks of hot water supply…