定价： 1177元 / 折扣价： 1001 元

定价： 2821元 / 折扣价： 2398 元

定价： 5961元 / 折扣价： 5067 元

定价： 2366元 / 折扣价： 2012 元

定价： 4323元 / 折扣价： 3675 元

This PDF includes GI #2. 1. Scope 1.1 This Standard covers automatic transfer switches for use in nonhazardous locations in accordance with the Rules of the Canadian Electrical Code, Part I, to provide switching of electrical energy in emergency or

定价： 455元 / 折扣价： 387 元

定价： 592元 / 折扣价： 504 元

1. Scope This clause of Part 1 is replaced as follows: 1.1 In general, this standard applies to timers and time switches for household and similar use that may use electricity, gas, oil, solid fuel, solar thermal energy, etc. or a combination there

定价： 1001元 / 折扣价： 851 元

No Scope Available

定价： 273元 / 折扣价： 233 元

1. Scope 1.1 This Standard specifies the requirements for mineral oil of petroleum origin for use in transformers, oil circuit breakers, or other electrical equipment (excluding high-voltage cables) requiring a liquid insulating and cooling medium.

定价： 455元 / 折扣价： 387 元

This PDF includes GI #2. 1. Scope 1.1 This Standard applies to full-load interrupter switches for use at voltages from 751 to 48 300 V ac indoors, and for installation in switchgear assemblies (see CSA Standard C22.2 No. 31) or similar equipment fo

定价： 501元 / 折扣价： 426 元

This PDF includes Update #1 1 Scope 1.1 These requirements cover individually enclosed air switches, rated 4000 A or less at 600 V or less, having all current-carrying parts enclosed, manually operable by means of external handles, and intended to

定价： 1775元 / 折扣价： 1509 元

1.1 This Standard applies to clock-operated switches, rated 600 V or less, designed to be used in ordinary locations to close and open circuits to a load at predetermined intervals, and intended to be employed in accordance with the Rules of the Canadian

定价： 637元 / 折扣价： 542 元

Membrane Switch keys are subjected to repeated actuations, usually by a human finger. They are also subjected to other conditions (for example, wiping, cleaning, rubbing) during handling, end-use, shipment, or storage that may cause abrasion damage. The result may be a significant removal of the coatings, text or decorative inks.This test method is applicable to a wide range of materials. The main criterion is that the abrasion process produces visible wear or breakthrough in the surface being tested.The amount of abrasion damage to a surface is dependent on numerous variables. This test method provides a way of comparing relative abrasion resistance of inks and coatings. In no way do the results provide a correlation value of the number of human finger touches before coating failure. It only provides a means to compare results of tests performed using the same equipment, abrasive materials and loading conditions.The test method can be used for quality control purposes, as a research and development tool, to evaluate material combinations for a given application, or for the comparison of materials with relatively similar properties.1.1 This test method describes the procedure for subjecting inks or coatings on membrane switches to an abrasive medium at a specified force.1.2 Within certain limitations, as described in this document, this test method is applicable for materials including, but not limited to: printed or coated polyester, polycarbonate, and silicone rubber. The samples can be either flat or contoured.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

定价： 0元 / 折扣价： 0 元

(It includes GI 3)

定价： 455元 / 折扣价： 387 元