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1. Scope This standard specifies general and safety requirements for starting devices (starters and ignitors) for tubular fluorescent and other discharge lamps for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz which produce starting pulses not g

定价: 910元 / 折扣价: 774

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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

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1. Scope and Object This standard applies, when required by the relevant product standard, to switchgear and controlgear hereinafter referred to as "equipment" and intended to be connected to circuits, the rated voltage of which does not exceed 1000 V

定价: 2321元 / 折扣价: 1973

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定价: 1320元 / 折扣价: 1122

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定价: 1274元 / 折扣价: 1083

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定价: 956元 / 折扣价: 813

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定价: 1229元 / 折扣价: 1045

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1. Scope This International Standard specifies a laboratory method for vibration testing of operator seats for earth-moving machinery at frequencies between 1 Hz and 20 Hz. It is based on ISO 10326-1 which is a general method applicable to seats for

定价: 410元 / 折扣价: 349

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定价: 455元 / 折扣价: 387

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CSA Preface This is the first edition of CAN/CSA-M8082, Self-propelled machinery for forestry - Roll-over protective structures - Laboratory tests and performance requirements, which is an adoption without modification of the identically titled ISO (In

定价: 728元 / 折扣价: 619

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