Scope Details test and examination criteria for automatic gas shutoff valves and devices which operate when the temperature sensing element is at 210oF (99oC) or less

定价： 546元 / 折扣价： 465 元

Scope Datails test and examination criteria for automatic gas shutoff valves and devices which operate when the temperature sensing element is at 210oF (99oC) or less.

定价： 683元 / 折扣价： 581 元

1 Scope Replacement: This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, aircooled separating transformers, associated or not, having a rated supply voltage not exceeding 1000 V a.c., a rated frequency not exceedin

定价： 364元 / 折扣价： 310 元

1 Scope Replacement: This International Standard deals with all aspects of safety such as electrical, thermal and mechanical. This part 2-13 of IEC 61558 applies to stationary or portable, single-phase or polyphase, aircooled (natural or forced), i

定价： 455元 / 折扣价： 387 元

1 Scope Replacement: This part 2-2 of IEC 61558 applies to stationary or portable, single-phase or poly-phases, aircooled control transformers associated or otherwise having a rated supply voltage not exceeding 1 000 V a.c. or 1 415 V ripple free d.c.

定价： 410元 / 折扣价： 349 元

1 Scope Replacement: This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, air-cooled isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency not e

定价： 455元 / 折扣价： 387 元

1 Scope Replacement: This part 2-5 of IEC 61558 applies to shaver supply units, embodying one or more socketoutlets and a single phase air cooled isolating transformer, having a rated supply voltage not exceeding 250 V a.c., a rated output not less th

定价： 455元 / 折扣价： 387 元

1 Scope Replacement: This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, aircooled safety isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency n

定价： 455元 / 折扣价： 387 元

定价： 501元 / 折扣价： 426 元

This PDF includes Update No. 2 and Update No. 3 1. Scope 1.1 This Standard applies to devices that automatically reduce the initial pressure to a set lower pressure in water systems and are self-acting spring-operated devices. It applies to devices

定价： 364元 / 折扣价： 310 元

CSA Preface This is the first edition of CAN/CSA-C61000-2-12, Electromagnetic compatibility (EMC) - Part 2-12: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public medium-voltage power supply systems, whi

定价： 1001元 / 折扣价： 851 元

CSA Preface This is the second edition of CAN/CSA-C61000-2-2, Electromagnetic compatibility (EMC) - Part 2-2: Environment - Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems, which i

定价： 1001元 / 折扣价： 851 元

1 Scope and object This part of IEC 61000 is concerned with the emission of voltage changes, voltage fluctuations and flicker produced by equipment and impressed on the public low-voltage supply system. It specifies the limits of voltage changes produc

定价： 683元 / 折扣价： 581 元

CSA Preface This is the first edition of CAN/CSA-C61000-3-3, Electromagnetic compatibility (EMC) - Part 3-3: Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current

定价： 1092元 / 折扣价： 929 元

This PDF includes GI #2. 1. Scope 1.1 This Standard applies to the following products rated at 600 V and less, and designed to be used in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I: (a) cord sets and

定价： 819元 / 折扣价： 697 元