Dear sir.
I am Kelvin Powei Tamarakuro from Nigeria,  
I am applying for the position of an electrician. I am a certified electrician with 6 years  of experience in electrical installation and repairs.  I have functional knowledge of electrical code and standard of practice. 
I would welcome the opportunity to work with your company , I'm sure that after the appraisal of my resume you will see that i am an individual with an excellent idea.i look forward hearing from you in due course
Yours sincerely
Kelvin Powei Tamarakuro.