For example, the phrase spondylosis of the lumbar spine means degenerative changes such as osteoarthritis of the vertebral joints and degenerating intervertebral discs (degenerative disc disease) in the low back.
Special offers. MCB Selection. MCBs or Miniature Circuit Breakers are intended to give protection against overloads and short circuits, which can cause damage to cables and equipment. MCBs have current ratings (6A, 10A etc.) above which they will start to open or trip and give protection to the equipment.
These are assigned by credit rating agencies such as Moody's, Standard & Poor's and Fitch Ratings to have letter designations (such as AAA, B, CC) which represent the quality of a bond. Moody's assigns bond credit ratings of Aaa, Aa, A, Baa, Ba, B, Caa, Ca, C, with WR and NR as withdrawn and not rated. bond is considered investment grade or IG if its credit rating is BBB-or higher by Standard & Poor's or Baa3 or higher by Moody's.