Hello Dunx..I can only assume from your comments you are new to the trade?
You say you are with NICEIC?
Do you not get their quarterly publications "Connections" & "Switched On"?
As this topic has been discussed during the past year and review of allowing contractors to open cut-out fuses has been under debate..
Have a look at Issue 16 of Switched On Spring 2010
Article bottom of page 7 headed
"Access to service fuses"
Summary result "DENIED"!!!
Also are you not aware of:-
The Electricity Safety, Quality and Continuity Regulations 2002
Guidance notes can be found here:-
http://webarchive.nationalarchives.gov.uk/tna/+/http://www.dti.gov.uk/electricity-regulations/gfesqcr.pdf/
In a nutshell Paragraph 24(2)
places a specific legal obligation upon DNO to ensure their cut-out fuses on customer premises are to be locked or sealed to prevent access by unathorised persons.
1/ You or I are NOT authorised unless you have some written permission from the DNO of course!
2/ NICEIC / ECS printed articles on this very topic during the past 12 months say you are NOT authorised..
and electrical contractors..
NO MATTER HOW COMPETENT THEY FEEL THEY ARE..
Have been DENIED access to service cut out fuses!
So..
Its not complicated
It is Simple
You cannot legally remove seals & or cut out fuses!
Now what various electricians do or do-not do during their everyday course of business is up to them & they will carry the burden if the brown waste substance hits the rotating ventilation device....
But I cannot see how any competent electrician would ever suggest on an open public forum that cutting seals & removing fuses is a safe or legal practice.
And I would guess Admin & the Mods would be taking some risks if they were to leave such advice posted.
:| :C