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Old 17th Feb 2018, 9:20 pm   #14
Bookman
Hexode
 
Join Date: Aug 2017
Location: Taunton, Somerset, UK.
Posts: 318
Default Re: Lamp adapter query.

I believe the problem here is the reference made to legalities and under what circumstances the validity of the product for use is acceptable. For example all electrical products are manufactured in accordance with IEC recommendations in conjunction with the applicable national codes of recommendations be they BS/ANSI and so forth. One need not comply fully with such recommendations but must state to what extent under type test conditions.
Similarly, Insurance companies will often if not always mandate compliance with what are fundamental issues that are generally recommendations that are supported by empirical data. Ergo, who has the overall responsibility should any form of legality be challenged?
In general, usage factors and safety are as stated previously and who has responsibility for maintaining that safety. I have only ever come across one item in the last 50 years that was banned. It was a 440V, 3Phase motor starter that had a bistable mechanical latching device that allowed the starter to remain closed if the power was lost at any time. Clearly, the motor would immediately start automatically when the power was reconnected.
For information purposes most of the HV Circuit Breakers used globally from 3300V to 1,000,000V utilise SF6 gas as a dielectric and arc extinguishing medium. Under fault conditions there are arced products for consideration which are generally classified as SF4. This is highly toxic if exposed to any moisture such as sweat on your hands?
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