I'm currently a Maintenance Apprentice, personally it goes both ways, in regards to experience compared to contracting/installation. A lot of bosses including mine will 9/10 ask me to wire a new installation instead of hiring someone else to do it, and after spending a few months with an on-site contractor I've learned absolutely loads of things which I never knew simply just because I've been taught in a Maintenance Discipline and mainly perform Opportunity Maintenance/Repairs on Machine control panels working more with relays, contactors etc. For my specific qualification (BTEC National Diploma L3) I didn't even have to do the regs! I went out of my own way to do them.
In short...being taught solely from a Maintenance Perspective is bad in my opinion, you don't gain enough knowledge about 'basic' Electrical Practices, I've went well out of my way to learn a lot of the things that I have rather than being taught on my Apprenticeship. I personally wish my apprenticeship had been Installation...or at least Installation for the first year, however I've been fortunate in that I've had a experience in both Maintenance and with an Electrical Contractor.
All in all...bosses need to realise the benefits of both Installation Engineers and Maintenance Engineers and should perhaps consider combining the two in a Maintenance Department, or at least ensure their Maintenance Technicians gain relevant installation experience. From what I've seen a competent experienced Contractor/Installation Electrician can easily learn the ropes of Maintenance.
No idea why I felt the need to type all that but yes...maybe one of you guys should try putting this point I made across to your Interviewers somehow when convincing them you're right for the job although you are not experienced in that specific discipline... Somehow. :sweatdrop: