1. Scope This clause of Part 1 is replaced as follows: 1.1 This standard applies to the evaluation of thermal protectors for ballasts for tubular fluorescent lamps. Requirements concerning the testing of the combination of ballast and thermal pr

定价： 637元 / 折扣价： 542 元

No Scope Available

定价： 228元 / 折扣价： 194 元

FOREWORD This amendment has been prepared by IEC technical committee 72: Automatic controls for household use. AVANT-PROPOS Le présent amendement a été établi par le comité d'études 72 de la CEI: Commandes automatiques pour appareils domestiques.

定价： 228元 / 折扣价： 194 元

1. Scope This standard covers ballasts, excluding resistance types, for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with tubular fluorescent lamps with or without pre-heated cathodes operated with or without a starter or starting d

定价： 1456元 / 折扣价： 1238 元

1. Scope This standard specifies safety requirements for ballasts for discharge lamps such as high-pressure mercury vapour, low- pressure sodium vapour, high-pressure sodium vapour and metal halide lamps. Section One specifies general requirements and

定价： 910元 / 折扣价： 774 元

1. Scope This standard specifies general and safety requirements for electronic ballasts for use on a.c. supplies up to 1000 V at 50 Hz or 60 Hz with operating frequencies deviating from the supply frequency, associated with tubular fluorescent lamps a

定价： 1047元 / 折扣价： 890 元

This PDF includes GI #3. 1. Scope 1.1 This Standard applies to measurement of the efficacy of fluorescent lamp ballasts for use in fluorescent luminaires to be installed in industrial, commercial, or residential locations. 1.2 This Standard appli

定价： 501元 / 折扣价： 426 元