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This post was last edited by wangzhanzhuce on 2020-3-23 07:58. Dear experts: There are mandatory standards and recommended standards, such as GB50235-2010 and DL/T5190.5-2012. Then, GB50235-2010 specifies that certain provisions are mandatory to be followed, as listed below. Does that mean the other provisions can be ignored? A similar statement can be found in DL/T5190.5-2012 as well, as follows: However, the wording used in the standards includes terms such as \"should\", \"is advisable\", and \"may\". Therefore, I would like to ask: What are the differences in implementation between provisions with a \"T\" and those without it, as well as between mandatory provisions and general provisions?
The standard wording is too confusing; why is there such a thing as mandatory provisions?
Strict regulations generally relate to safety and must be followed; there is no room for flexibility. A ‘T’ in the standard number indicates that there are no mandatory provisions throughout the standard
In DL/T5190.5-2012, there are mandatory provisions; please look at my second picture.
Then why are there bolded mandatory clauses in a standard without a T?
Since they are standards, they must be followed; the term \"enforced\" is completely unnecessary
Oh, it seems I didn’t fully understand – there are special cases too! This was covered in the standardization training sessions before; the standards relevant to the certification exams also follow this pattern. There is relatively much less information available regarding industry standards~( ̄▽ ̄~)~
Let’s learn about it; looking forward to an expert’s explanation
Article source: https://wenku.baidu.com/view/4715b1d2ad51f01dc281f17a.html So it seems that certain standards that were originally recommended for use have become mandatory, which means that the use of these standards has shifted from being optional to being required.