Answer: Ring main system In this system, various power stations or sub-stations are interconnected alternate routes, thus forming a closed ring. In case of damage to any section of the ring, that section may be disconnected for repairs and power will be supplied from both ends of the ring.
A radial system has a single simultaneous path of power .The distribution systems are typically radial because networked systems are more expensive.
Answer: The Library of Congress Classification System (LCC) organizesmaterials into 21 branches of knowledge. These basic categories(labeled A - Z, with the exceptions of I, O, W, X and Y) are thendivided into more specific subclasses by incorporating additionalletters.
Answer: The coding system to bill durable medical equipment is called the Healthcare Common Procedure Coding System better known in the industry as HCPCS (think hics-pics) it consists of a letter and four numbers. Each code represents a particular piece of equipment or supply. The letter generally represents a category, B codes are used for enteral nutrition & supplies, E codes for most of the home equipment such as hospital beds, wheelchairs, walkers, etc.. When you bill medical equipment you also use ICD-9 codes or diagnosis codes. The ICD-9 code should represent a diagnosis that supports medical necessity for the equipment that is supplied to the customer.