This guide is based on the knowledge and experience accumulated over a decade of using the inclined plane tracking and erosion test setup with direct current (dc) voltages for the evaluation of tracking and erosion resistance of outdoor insulating materials. This guide discusses various important aspects that need to be considered for conducting a feasible test under dc voltages. However, it must be clear that judgment and experience are required to analyze and balance the discussed aspects for… read more any specific application of the dc inclined plane tracking and erosion test. read less

定价： 59元 / 折扣价： 51 元

The general information in this guide is intended to assist in evaluating the effect of solar radiation on outdoor metal-enclosed switchgear, and is, for example, applicable to outdoor metal-enclosed circuit breaker power switchgear, metal-clad switchgear, metal-enclosed interrupter switchgear, metal-enclosed gas insulated switchgear, control switchboards, metal-enclosed bus, and pad-mounted switchgear. Specific data are given in current-temperature relationship, and tabulation form for its… read more application to outdoor metal-enclosed low-voltage power circuit breaker switchgear, outdoor metal-clad switchgear, and outdoor metal-enclosed interrupter switchgear. read less

定价： 56元 / 折扣价： 48 元

The general information in this Guide is applicable to all forms of outdoor metal-enclosed switchgear. Specific data are given in Fig. 2 for outdoor metal-clad switchgear.* The many combinations of sizes and ratings in similar housings make it impracticable to provide equivalent information for outdoor low-voltage metal-enclosed air circuit-breaker switchgear. Data are not yet available for specific recommendations for other switchgear equipment or components.

定价： 55元 / 折扣价： 47 元

This guide is based on the knowledge and more than 25 years of experience on the use of room-temperature vulcanizing (RTV) silicone rubber coatings that are used to improve the contamination performance of outdoor high-voltage (HV) insulators. This guide discusses various important aspects that are needed for satisfactory long-term performance of HV insulator coatings (HVIC); namely, various application methods, pre-coated insulators, partially coated insulators, maintenance issues on coated… read more insulators, factors aff ecting long-term performance, the question of aging, laboratory accelerated tests, and functional outdoor evaluation. However, it must be clear that for any specifi c application, judgment and experience are required to analyze and balance the many characteristics, which are discussed to obtain satisfactory performance and reliability. read less

定价： 57元 / 折扣价： 49 元

This standard covers requirements for the external insulation of outdoor ac high-voltage circuit breakers rated on a symmetrical current basis.

定价： 43元 / 折扣价： 37 元

This standard covers the schedule of dielectric test values for American National Standard, C37.078-1972 (IEEE Std 343-1972) which contains definitions, ratings, construction, and test procedure.

定价： 56元 / 折扣价： 48 元