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The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is part of the National Fire Code series published by the National Fire Protection Association (NFPA), a private trade association . [ 1 ]
Each chapter within a particular volume is reviewed and revised in a repeating four-year cycle; one volume is printed each year. [6] In the summer of 2017 the new Fundamentals' volume was released. ASHRAE's Handbook Committee maintains an Authors and Revisers Guide, which can be obtained freely via the Handbook portion of the ASHRAE Web site.
The NEC contracts now form a suite of contracts, with NEC being the brand name for the "family" of contracts. [16] When it was first launched in 1993, it was simply the "New Engineering Contract". This specific contract has been renamed the "Engineering and Construction Contract" which is the main contract used for any construction based project.
NEC μPD70008 8 MHz 64 KB 48 KB No Yes Yes No FM (YM2203) Mono: Yes No No 88FR CPU upgrade. model30（B）is black color model. model 20 1× 5.25" 2D model 30 2× 5.25" 2D PC-8801 MH NEC μPD70008 8 MHz 192 KB 48 KB No Yes Yes No FM (YM2203) Mono: Yes 2× 5.25" 2HD No 88MR CPU upgrade 1987 PC-88 VA NEC μPD9002 8 MHz 512 KB 256 KB No Yes Yes Yes
The PC-8000 series (Japanese: PC-8000シリーズ, Hepburn: Pī-Shī Hassen Shirīzu) is a line of personal computers developed for the Japanese market by NEC.The PC-8001 model was also sold in the United States [5] [6] and Canada as the PC-8001A.
The NEC μCOM series is a series of microprocessors and microcontrollers manufactured by NEC in the 1970s and 1980s. The initial entries in the series were custom-designed 4 and 16-bit designs, but later models in the series were mostly based on the Intel 8080 and Zilog Z80 8-bit designs, and later, the Intel 8086 16-bit design.
A HuCard. The HuCard (Japanese: ヒューカード, Hepburn: HyūKādo) (Known as the TurboChip in regions where the PC Engine was marketed as the TurboGrafx-16) is a ROM cartridge in the form of a card, designed by Hudson Soft for NEC's PC Engine and PC Engine SuperGrafx video game consoles, which were originally released in 1987 and 1989, respectively.
The Code is divided into sections, each section is labeled with an even number and a title. Sections 0, 2, 4, 6, 8, 10, 12, 14, 16, and 26 include rules that apply to installations in general; the remaining sections are supplementary and deal with installation methods in specific locations or situations.