定价： 2639元 / 折扣价： 2244 元

1.1 Scope 1.1.1 This standard applies to the construction and installation procedures for newly produced automatic intermittent pilot ignition systems (see Part II, Definitions), hereinafter referred to as "systems", constructed entirely of new, unus

定价： 3458元 / 折扣价： 2940 元

This PDF includes GI #2. 1. Scope 1.1 This Standard applies to portable electric tools intended for use in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I. It applies to tools having a voltage rating not

定价： 819元 / 折扣价： 697 元

This PDF includes GI #2-#6. 1. Scope 1.1 This Standard applies to single-phase electric tools of the bench type intended for use in nonhazardous locations in accordance with the Canadian Electrical Code, Part I, when connected to a nominal system v

定价： 819元 / 折扣价： 697 元

1. Scope This clause of part 1 is replaced by: This standard deals with the safety of all kinds of electrical heating appliances used for livestock rearing and breeding, such as: heat-radiating appliances, electrical sitting-hens, incubators, chicke

定价： 637元 / 折扣价： 542 元

Scope Details test and examination criteria for automatic intermittent pilot ignition systems designed to be adapted to existing continuous pilot burners on listed forced air heating appliances and boilers equipped with atmospheric burners. These syst

定价： 683元 / 折扣价： 581 元

1.1 Scope This part of IEC 71 constitutes an application guide and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems. Its aim is to give guidance for the determination of the rated withstand

定价： 2184元 / 折扣价： 1857 元

1. Scope This part of International Standard IEC 71 applies to three- phase a.c. systems having a highest voltage for equipment above 1 kV. It specifies the procedures for the selection of the standard withstand voltages for the phase-to-earth, phase-t

定价： 865元 / 折扣价： 736 元