Welcome Guest! The IOSH forums are a free resource to both members and non-members. Login or register to use them

Postings made by forum users are personal opinions. IOSH is not responsible for the content or accuracy of any of the information contained in forum postings. Please carefully consider any advice you receive.

Notification

Icon
Error

Options
Go to last post Go to first unread
EddieWalters  
#1 Posted : 12 June 2019 19:24:27(UTC)
Rank: New forum user
EddieWalters

Hi every one. Can anyone help where I can get some guidance relating to Guarding of Machinery

I would appreciate any pointers

Ed 

paul.skyrme  
#2 Posted : 12 June 2019 19:39:29(UTC)
Rank: Super forum user
paul.skyrme

ISO 12100 is the A-type standard for machinery safety.

ISO 14120 is the B-type standard for machinery guarding.

Remember if you design, manufacture and fit guarding yourself in house then it is still required to be CE marked indepenently of the machine it is fitted to because it is safety equipment being placed on the market/into use on its own as it were.

Then for interlocks for the guarding you would be looking at ISO 14119 for selection, then EN 60204-1 for the design of the electrical circuits for the interlocks and ISO 13849-1 for the design of the reliability of the interlock system to give it an adequate performance level to protect the user adequately and be realiable, then ISO 13849-2 to validate this design. If you are using programmable electronic systems to "manage" your interlocks such as a PLC then it must be a safety PLC, then the software will need validation to EN 60261, unless it uses pre approved and pre validated function blocks.

Then you could use the C-type standard for the machine type you have to assess the recommended guarding for the hazards.

Then you will need a technical file for the design of your guards, this will need to include design calculations to prove the strength of the guarding to contain any forseable ejections from the equipment in the event of normal or forseable abnormal operation.

Strictly speaking it doesn't matter if the guarding is required under PUWER or the SMSR as the requirement for the manufacture and supply of guarding to new or existing machines falls under SMSR and thus falls within the CE marking requirements.

thanks 1 user thanked paul.skyrme for this useful post.
EddieWalters on 12/06/2019(UTC)
EddieWalters  
#3 Posted : 12 June 2019 20:01:05(UTC)
Rank: New forum user
EddieWalters

Thanks Paul

I'm mainly looking at protection from moving parts thst have no interlocks but are just barriers to contact.  This includes mesh, plate, etc.  The main problem i have is the guidance on distance or gaps that are allowed

Ed

paul.skyrme  
#4 Posted : 12 June 2019 20:11:36(UTC)
Rank: Super forum user
paul.skyrme

So it seems these are existing machines.

You still have ISO 12100, ISO 14120 and then with your additional information about gaps and distances be looking at ISO 13857.

Remember though that guarding must be fixed such that it requires a tool to remove, and a coin is not considerd a tool.

Also, guard fasteners must remain with the guard or machine and the guard must if possible not remain in position if the fasteners are not secured.

Then there are still the c-type standards for the machie types which will give you what is expected as current practice.

EddieWalters  
#5 Posted : 12 June 2019 20:23:43(UTC)
Rank: New forum user
EddieWalters

Perfect thank you again Paul. Thats given me some sound advice

Ed

Users browsing this topic
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.