✔ 最佳答案
You are required to appoint a register fire service contractor to do this alteration work. Then they will issue certificate FS 251 to you in order to prove that the works is completed and hose reel can be worked in a health manner.
But FS 251 is suitable for a small alteration and addition works. If nearly a half of fire services installation is necessary to alter, you are required to submit FS314 for FSD approval before the commencement of works.