Mitsubishi Electric NX-W Installation And Operating Manual page 340

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UM_NX-W_00_05_19_ML
‫ﻭﺍﻟﻠﻭﺍﺋﺢ ﺍﻟﻣﺣﻠﻳﺔ ﺍﻟﺳﺎﺭﻳﺔ ﻭﺗﻛﻭﻥ ﻛﺎﻓﻳﺔ ﻟﻣﺗﻁﻠﺑﺎﺕ ﺍﺳﻬﻼﻙ ﺍﻟﻭﺣﺩﺓ ﺍﻟﻣﺷﺎﺭ ﺇﻟﻳﻬﺎ ﻓﻲ ﻣﺧﻁﻁ ﺍﻷﺳﻼﻙ ﻭﻋﻠﻰ ﻟﻭﺣﺔ ﺍﻟﺑﻳﺎﻧﺎﺕ. ﻳﺟﺏ ﺃﻥ‬
‫%. ﻳﺟﺏ ﺗﻭﺻﻳﻝ ﺍﻟﻭﺣﺩﺓ ﺑﺎﻟﻁﺎﻗﺔ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ ﻧﻭﻉ ﺛﻼﺛﺔ ﻓﺎﺯ. ﻓﻲ ﺣﺎﻟﺔ ﺗﺭﻛﻳﺏ ﻗﺎﻁﻊ ﻟﻠﺩﺍﺋﺭﺓ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ ﻓﻲ ﻧﻅﺎﻡ‬
‫ﻼﺕ ﺫﺍﺕ ﻗ ُ ﻁﺭ ﻣﻧﺎﺳﺏ ﻟﻘﻭﺓ ﺍﻣﺗﺻﺎﺹ ﺍﻵﻟﺔ ﻟﻠﻁﺎﻗﺔ ﺍﻟﻣﺷﺎﺭ ﺇﻟﻳﻬﺎ ﻓﻲ ﻟﻭﺣﺔ ﺍﻟﺑﻳﺎﻧﺎﺕ ﻭﻓﻲ ﺍﻟﺗﻁﺑﻳﻖ. ﺃﺣﻛﻡ ﺭﺑﻁ ﺣﻠﻘﺎﺕ ﺍﻟﻌﺭﻭﺍﺕ ﺑﻌﺯﻡ ﺍﻟﺩﻭﺭﺍﻥ ﺍﻟ‬
.‫ﻣﻧﺎﺳﺏ ﻟﻬﺫﻩ ﺍﻟﺗﻭﺻﻳﻼﺕ‬
‫ﺻﻝ ﺃﺩﻭﺍﺕ ﺍﻟﺣﻣﺎﻳﺔ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ )ﺍﻟﻣﺻﺎﻫﺭ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ ﻭ/ﺃﻭ ﺍﻟﻣﻔﺎﺗﻳﺢ‬
‫ﻡ ﺑﺷﺣﻥ ﻏﺎﺯ ﺍﻟﺗﺑﺭﻳﺩ، ﺃ ﻋ ِ ﺩ ﻭﺿﻊ ﺃﺩﻭﺍﺕ ﺍﻟﺣﻣﺎﻳﺔ ﻓﻲ ﻣﻛﺎﻧﻬﺎ ﻣﻊ ﺇﻳﻘﺎﻑ ﺍﻟﻁﺎﻗﺔ‬
.‫ﺗﺟﻣﺩ ﺑﻣﺑﺎﺩﻻﺕ ﺍﻟﺣﺭﺍﺭﺓ‬
‫ﻳﻑ ﻣﻔﺎﺗﻳﺢ ﺍﻟﺗﻼﻣﺱ ﺍﻟﻣﻧﻔﺻﻠﺔ ﻟﻛﻝ ﻭﺣﺩﺓ )ﻻ ﻳﺟﺏ ﺃﺑﺩﺍ‬
‫ﻳﺟﺏ ﺍﺳﺗﺧﺩﺍﻡ ﻛﺑﻼﺕ ﻣﺣﺟﻭﺑﺔ ﺫﺍﺕ ﻣﻌﺎﻭﻗﺔ‬
‫ﺻﻳﻼﺕ ﻋﻠﻰ ﺍﻟﺗﻭﺍﻟﻲ‬
‫ﺍﺟﺏ ﺍﻟﺧﺎﺻﺔ ﺑﻛﻝ ﺟﺯء ﺑﺑﻌﺿﻬﺎ ﻭﻟﻛﻥ ﻟﻳﺱ ﺑﻌﻠﺑﺔ ﺃﻁﺭﺍﻑ ﺍﻟﻭﺣﺩﺓ. ﻳﺟﺏ ﺃﻥ ﻳﺗﻡ‬
:‫ﻣﻥ ﺧﻼﻝ ﻣﻭﺻﻝ ﺧﺎﺭﺟﻲ ﺃﻭ ﻣﻥ ﺧﻼﻝ ﺑﺭﻭﺗﻭﻛﻭﻝ ﺗﺣﻛﻡ ﺗﺳﻠﺳﻠﻲ، ﻳﺟﺏ ﺍﻻﻣﺗﺛﺎﻝ ﻟﻸﻭﻗﺎﺕ ﺍﻟﺗﺎﻟﻳﺔ ﻛﺣﺩ ﺃﺩﻧﻰ‬
-----------------------------------
x 100
MITSUBISHI ELECTRIC HYDRONICS & IT COOLING SYSTEM S.p.A.
.‫. ﻳﺻﺑﺢ ﺗﺭﻛﻳﺏ ﻫﺫﺍ ﺍﻟﻘﺎﻁﻊ ﺇﺟﺑﺎﺭ ﻳ ً ﺎ ﻋﻧﺩ ﺍﻹﺷﺎﺭﺓ ﺇﻟﻰ ﺫﻟﻙ ﻓﻲ ﻣﺧﻁﻁﺎﺕ ﺗﻭﺻﻳﻝ ﺍﻷﺳﻼﻙ‬
.‫ﺭﻛﺏ ﻣﻔﺗﺎﺡ ﺣﻣﺎﻳﺔ ﻣﻥ ﺍﻟﺣﻣﻝ ﺍﻟﺯﺍﺋﺩ، ﻭﺍﻟﺫﻱ ﻻ ﻳﺗﻡ ﺗﻭﺭﻳﺩﻩ ﻣﻊ ﺍﻟﻭﺣﺩﺓ، ﻋﻠﻰ ﺧﻁ ﺍﻹﻣﺩﺍﺩ ﺑﺎﻟﻁﺎﻗﺔ ﺑﻠﻭﺣﺔ ﺍﻟﻛﻬﺭﺑﺎء ﻭﻓﻘﺎ ﻟﻠﻘﻭﺍﻧﻳﻥ ﺍﻟﺳﺎﺭﻳﺔ‬
.‫ﻣﺩﺍﺩ ﺑﺎﻟﻁﺎﻗﺔ ﺑﺩﺍﺧﻝ ﻟﻭﺣﺔ ﺍﻟﻛﻬﺭﺑﺎء‬
‫ﺭﺍﻉ ِ ﺃﻳ ﺿ ً ﺎ ﺗﻭﻓﻳﺭ ﺟﻣﻳﻊ ﺍﻟﻣﺗﻁﻠﺑﺎﺕ ﺍﻟﻣﺫﻛﻭﺭﺓ ﻭﺍﻟﻣﺷﺎﺭ ﺇﻟﻳﻬﺎ ﻓﻲ ﻣﺧﻁﻁ ﺗﻭﺻﻳﻝ ﺍﻷﺳﻼﻙ. ﺩﺍﺋﺭﺓ ﺍﻟﺗﺣﻛﻡ ﻣﺗﻔﺭﻋﺔ ﻣﻥ ﺩﺍﺋﺭﺓ ﺍﻹ‬
.‫ﻻ ﺗﻠﻣﺱ ﺃﺳﻁﺢ ﺳﺎﺧﻧﺔ ﺃﻭ ﺣﺎﺩﺓ. ﻳ ُ ﺣﻅﺭ ﺇﺩﺧﺎﻝ ﺍﻷﺳﻼﻙ ﻓﻲ ﻟﻭﺣﺔ ﺍﻟﻛﻬﺭﺑﺎء ﻓﻲ ﺃﻳﺔ ﻧﻘﺎﻁ ﻏﻳﺭ ﺗﻠﻙ ﺍﻟﻣﺧﺻﺻﺔ ﻟﺫﻟﻙ‬
‫ﻗﺑﻝ ﺍﻟﺑﺩء ﻓﻲ ﺗﻭﻟﻳﺩ ﺍﻟﻔﺭﺍﻍ ﻓﻲ ﺩﺍﺋﺭﺓ ﺍﻟﺗﺑﺭﻳﺩ، ﺗﺄﻛﺩ ﻣﻥ ﻓﺻﻝ ﺟﻣﻳﻊ ﺃﻁﻭﺍﺭ ﺍﻟﻣﺣﺭﻙ ﺍﻟﻛﻬﺭﺑﻲ ﻟﻠﺿﻭﺍﻏﻁ ﻋﻥ ﻣﺯﻭ ّ ِ ﺩ ﺍﻟﻁﺎﻗﺔ ﻋﺑﺭ ﺇﺯﺍﻟﺔ ﺃﻭ ﻓ‬
‫ﺍﻷﻭﺗﻭﻣﺎﺗﻳﻛﻳﺔ( ﻓﻲ ﺍﺗﺟﺎﻩ ﺩﺍﺋﺭﺓ ﺍﻟﺗﺑﺭﻳﺩ. ﻳﺗﻡ ﺗﺳﻠﻳﻡ ﻭﺣﺩﺍﺕ ﺍﻟﺗﺑﺧﻳﺭ ﻭﺍﻟﺗﻛﺛﻳﻑ ﺫﺍﺕ ﺍﻟﺿﻭﺍﻏﻁ ﺍﻟﻠﻭﻟﺑﻳﺔ ﻭﺃﺩﻭﺍﺕ ﺍﻟﺣﻣﺎﻳﺔ ﻣﻔﺻﻭﻟﺔ. ﺑﻌﺩ ﺍﻟﻘﻳﺎ‬
‫ﻻ ﻳﺟﺏ ﻗﻁﻊ ﺍﻟﻛﻬﺭﺑﺎء ﺃﺑﺩﺍ، ﺑﺎﺳﺗﺛﻧﺎء ﺃﺛﻧﺎء ﻋﻣﻠﻳﺎﺕ ﺍﻟﺻﻳﺎﻧﺔ، ﻟﺿﻣﺎﻥ ﻋﻣﻝ ﺍﻟﻣﻘﺎﻭﻣﺔ ﺍﻟﻛﺭﺗﺭ ﻭﺑﺎﻟﻛﻣﺑﺭﻭﺳﺭ ﻭﻣﺎ ﻗﺩ ﺗﻛﻭﻥ ﻣﻥ ﻣﻘﺎﻭﻣﺔ ﻣﺿﺎﺩﺓ ﻟﻠ‬
.(‫ﻟﺗﺣﻛﻡ ﺍﻟﻣﺧﺻﺻﺔ )ﻟﻭ ﻟﻡ ﻳﻛﻥ ﻣﺯﻭﺩ ﻓﻲ ﺍﻟﺗﻭﺭﻳﺩ ﺍﻟﻌﺎﺩﻱ‬
.(‫ﻭﺻﻝ ﻣﻔﺎﺗﻳﺢ ﺗﻼﻣﺱ ﺍﻟﻣﺿﺧﺔ ﺍﻟﻣﺳﺎﻋﺩﺓ ﺑﺄﻁﺭﺍﻑ ﺩﺍﺋﺭﺓ ﺍﻟﺗﺣﻛﻡ ﺍﻟﻣﺧﺻﺻﺔ )ﻟﻭ ﻣﻭﺟﻭﺩﺓ ﻓﻲ ﻣﺧﻁﻁ ﺍﻟﺗﻭﺻﻳﻼﺕ‬
‫ﻋﻥ ﺑ ُ ﻌﺩ، ﻭﻣﻔﺗﺎﺡ ﺍﻟﺗﺩﻓﻖ، ﻭﺟﻬﺎﺯ ﺗﻔﻌﻳﻝ ﺍﻟﻣﺿﺧﺎﺕ، ﺍﻟﺦ( ﺇﺿﺎﻓﺔ ً ﺇﻟﻰ ﺗﻧﻅ‬
‫ﻣﻥ ﺍﻟﻣﺳﺗﺣﺳﻥ ﺗﻣﺩﻳﺩ ﻛﺑﻼﺕ ﺗﻭﺻﻳﻼﺕ ﺃﺟﻬﺯﺓ ﺍﻷﻣﺎﻥ ﺃﻋﻼﻩ ﻣﻧﻔﺻﻠﺔ ﻋﻥ ﻛﺑﻼﺕ ﺍﻹﻣﺩﺍﺩ ﺑﺎﻟﻁﺎﻗﺔ. ﻭﺇﻻ ﻳﺟﺏ ﺍﺳﺗﺧﺩﺍﻡ ﻛﺑﻼﺕ ﻣﺣﺟﻭﺑﺔ. ﻟﻠﻘﻳﺎﻡ ﺑﺗﻭ‬
.‫ﻣﺗﺭ‬
‫ﺍﻭﻡ ﻓﻘﻁ. ﺍﻟﺣﺩ ﺍﻷﻗﺻﻰ ﻟﻁﻭﻝ ﺍﻟﻛﺑﻝ ﺍﻟﺫﻱ ﻳﺭﺑﻁ ﺃﺟﻬﺯﺓ ﺍﻷﻣﺎﻥ ﺑﺄﺑﻌﺩ ﻭﺣﺩﺓ ﻻ ﻳﺟﺏ ﺃﻥ ﻳﺯﻳﺩ ﻋﻥ‬
1000
‫ﻳﺟﺏ ﺗﻭﺻﻳﻝ ﻫﺫﻩ ﺍﻷﺟﻬﺯﺓ ﺑﺎﻟﻭﺣﺩﺓ ﺍﻷﻭﻟﻰ ﻣﻥ ﺧﻼﻝ ﻛﺑﻝ ﺗﺳﻠﺳﻲ ﻭﺣﻳﺩ ﻭﺍﻟﺫﻱ ﻳﺗﻡ ﻣﺩﻩ ﻟﺗﻭﺻﻳﻝ ﺍﻟﻭﺣﺩﺍﺕ ﺍﻟﺗﺎﻟﻳﺔ. ﻳﺟﺏ ﺭﺑﻁ ﺍﻟﺣﻭ‬
.‫ﻳﺟﺏ ﺗﻣﺩﻳﺩ ﺍﻟﻛﺎﺑﻼﺕ ﺑﺈﺗﺑﺎﻉ ﻧﻔﺱ ﺍﻟﻁﺭﻳﻘﺔ ﺍﻟﻣﺳﺗﺧﺩﻣﺔ ﻣﻊ ﻛﺎﺑﻼﺕ ﻣﻔﺗﺎﺡ ﺍﻟﺗﺩﻓﻖ‬
.‫ﻬﺎ ﺑﻌﺩ ﺩﻗﻳﻘﺔ ﻣﻥ ﺇﻳﻘﺎﻑ ﺍﻟﻭﺣﺩﺓ، ﻭﺇﻻ ﺳﻭﻑ ﻳﺑﻁﻝ ﺍﻟﺿﻣﺎﻥ‬
-------------
‫ﻣﺗﻭﺳﻁ ﺍﻟﺟﻬﺩ‬
(
401
-------------------
X 100 = 1,99
A
.‫% ﻳﺑﻁﻝ ﺍﻟﺿﻣﺎﻥ‬
‫% ﺃﺗﺻﻝ ﺑﺷﺭﻛﺔ ﺍﻟﻛﻬﺭﺑﺎء. ﺗﺷﻐﻳﻝ ﺍﻟﻭﺣﺩﺓ ﻭﻫﻧﺎﻙ ﻓﺭﻕ ﻓﻲ ﻁﻭﺭ ﺍﻟﺟﻬﺩ ﺃﻛﺑﺭ ﻣﻥ‬
2
.(
/
/
) ‫ﻣﻥ ﺍﻟﻣﺳﺗﺣﺳﻥ، ﻗﺑﻝ ﺑﺩء ﺗﺷﻐﻳﻝ ﺍﻟﻭﺣﺩﺓ، ﺍﻟﺗﺣﻘﻖ ﻣﻥ ﺃﻧﻪ ﺗﻡ ﺗﺻﻣﻳﻡ ﺍﻟﻣﻧﻅﻭﻣﺔ ﻭﻓﻘﺎ ﻟﺗﻭﺟﻳﻪ ﺍﻟﺗﻭﺍﻓﻖ ﺍﻟﻛﻬﺭﻭﻣﻐﻧﺎﻁﻳﺳﻲ‬
EC
108
2004
EN 60204-1
‫ﻌﺎﺩﻝ‬
‫% ﻣﻊ ﺣﺩ ﺃﻗﺻﻰ ﻻﺧﺗﻼﻑ ﺍﻟﻁﻭﺭ ﻳ‬
2
.‫ﺍﻧﻳﻥ ﺍﻟﻣﺣﻠﻳﺔ. ﻏﺫﻱ ﺑﺎﻟﻁﺎﻗﺔ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ ﻓﻘﻁ ﺇﺫﺍ ﻛﺎﻧﺕ ﺍﻟﺩﻭﺭﺓ ﺍﻟﻬﻳﺩﺭﻭﻟﻳﻛﻳﺔ ﻣﻠﻳﺋﺔ‬
‫ﻳﺟﺏ ﺗﻧﻅﻳﻑ ﻣﻔﺎﺗﻳﺢ ﺗﻼﻣﺱ ﻣﺩﺍﺧﻝ ﺍﻟﻭﺣﺩﺓ )ﻣﻔﺗﺎﺡ‬
ON/OFF
(‫ﺍﻟﻘﻳﺎﻡ ﺑﻭﺻﻼﺕ ﻣﺗﻭﺍﺯﻳﺔ ﻷﻛﺛﺭ ﻣﻥ ﻭﺣﺩﺓ ﺑﺎﺳﺗﺧﺩﺍﻡ ﺟﻬﺎﺯ ﺗﻔﻌﻳﻝ ﻭﺍﺣﺩ‬
‫ﻭﻋﻼﻭﺓ ﻋﻠﻰ ﺫﻟﻙ، ﻳﺟﺏ ﺗﺷﻐﻳﻝ ﺍﻟﻣﺿﺧﺔ ﻋﻠﻰ ﺍﻷﻗﻝ ﻣﺩﺓ ﺩﻗﻳﻘﺔ ﻗﺑﻝ ﺑﺩء ﺗﺷﻐﻳﻝ ﺍﻟﻭﺣﺩﺓ ﻭﻓﺻﻠ‬
:‫%. ﺍﺳﺗﺧﺩﻡ ﺍﻟﻘﺎﻧﻭﻥ ﺍﻟﺗﺎﻟﻲ ﻟﻠﺗﺣﻘﻖ‬
2
= ‫ﺍﻟﺣﺩ ﺍﻷﻗﺻﻰ ﻟﻔﺭﻕ ﺍﻟﺟﻬﺩ ﻋﻥ ﺍﻟﻣﺗﻭﺳﻁ % ﺍﻟﻣﺧﺗﻠﻑ‬
V
-
409
)
= ‫% ﺍﻟﻔﺭﻕ‬
401
B
C
340
AR
‫ﺍﻟﺗﻭﺻﻳﻼﺕ ﺍ ﻟﻛﻬﺭﺑﺎﺋﻳﺔ‬
‫ﻣﺯﻭ ّ ِ ﺩ ﺍﻟﻁﺎﻗﺔ‬
‫ﻳﺟﺏ ﺃﻥ ﺗﺗﻭﺍﻓﻖ ﻣﻭﺍﺻﻔﺎﺕ ﻣﺻﺩﺭ ﻁﺎﻗﺔ ﺍﻟﺗﻳﺎﺭ ﺍﻟﻛﻬﺭﺑﺎﺋﻲ ﻣﻊ‬
-
/+ ‫ﻳﺗﻭﺍﻓﻖ ﺍﻟﺟﻬﺩ ﺍﻟﻛﻬﺭﺑﺎﺋﻲ ﻣﻊ ﺍﻟﻘﻳﻣﺔ ﺍﻟﻣﻘﺩﺭﺓ‬
10
‫ﺃﻭ‬
‫ﺍﻟﺗﺷﻐﻳﻝ ﺍﻟﻛﻬﺭﺑﺎﺋﻲ، ﻓﺈﻧﻪ ﻳﺟﺏ ﺃﻥ ﻳﻛﻭﻥ ﻣﻥ ﺍﻟﻧﻭﻋﻳﺔ‬
B
A
‫ﻳﺟﺏ ﺍﻟﺭﺟﻭﻉ ﺇﻟﻰ ﺍﻟﻘﻭ‬
‫ﻭﺻﻼﺕ ﺍﻟﻁﺎﻗﺔ‬
‫ﻗﻡ ﺑﺗﻭﺻﻳﻝ ﻟﻭﺣﺔ ﻛﻬﺭﺑﺎء ﺍﻟﻭﺣﺩﺓ ﻣﻥ ﺧﻼﻝ ﻛﺎﺑ‬
‫ﺍﻟﻣﻠﺣﻘﺎﺕ ﺍﻟﺧﺩﻣﻳﺔ ﺑﺩﺍﺋﺭﺓ ﺍﻟﺗﺣﻛﻡ‬
:‫ﻟﺗﺟﻧﺏ ﺑﻁﻼﻥ ﺍﻟﺿﻣﺎﻥ‬
‫ﻭﺻﻝ ﻣﻔﺗﺎﺡ ﺍﻟﺗﺩﻓﻖ ﺍﻟﻣﺿﺑﻭﻁ ﺑﺄﻁﺭﺍﻑ ﺩﺍﺋﺭﺓ ﺍ‬
120
.‫ﺗﺄﺭﻳﺽ ﺃﺣﺩ ﺃﻁﺭﺍﻑ ﻫﺫﻩ ﺍﻟﺣﻭﺍﺟﺏ‬
‫ﻓﻲ ﺣﺎﻟﺔ ﺍﺳﺗﺧﺩﺍﻡ ﻧﻅﺎﻡ ﺗﺣﻛﻡ ﻋﻥ ﺑ ُ ﻌﺩ‬
ON/OFF
‫ﻭﻋﻼﻭﺓ ﻋﻠﻰ ﺫﻟﻙ، ﺑﺎﻟﻧﺳﺑﺔ ﻟﻣﻔﺗﺎﺡ ﺍﻟﺗﺣﻛﻡ ﻋﻥ ﺑ ُ ﻌﺩ‬
ON/OFF
‫ﺩﻗﺎﺋﻖ‬
:‫ﺯﻣﻥ ﺍﻟﺗﺭﺣﻳﻝ ﺑﻳﻥ ﺗﺷﻐﻳﻠﻳﻥ ﻣﺗﺗﺎﻟﻳﻳﻥ‬
15
‫ﺩﻗﺎﺋﻖ‬
:‫ﺯﻣﻥ ﺍﻟﺗﺭﺣﻳﻝ ﺑﻳﻥ ﺇﻳﻘﺎﻑ ﻭﺗﺷﻐﻳﻝ‬
3
‫ﺍﻟﻔﺭﻕ ﺑﻳﻥ ﺃﻁﻭﺍﺭ ﻓﺭﻕ ﺍﻟﺟﻬﺩ ﺍﻟﺩﺍﺧﻝ‬
‫ﻻ ﺗﺷﻐﻝ ﺍﻟﻣﺣﺭﻛﺎﺕ ﺍﻟﻛﻬﺭﺑﺎﺋﻳﺔ ﻋﻧﺩﻣﺎ ﻳﻛﻭﻥ ﻓﺭﻕ ﺍﻟﺟﻬﺩ ﺃﻛﺑﺭ ﻣﻥ‬
3 -
-
‫ﻣﺛﺎﻝ: ﻣﻌﺩﻝ ﺟﻬﺩ ﺍﻟﺗﻐﺫﻳﺔ‬
50
400
AB = 409 V; BC = 398 V; AC 396 V
=
/(
+
+
) = ‫ﻣﺗﻭﺳﻁ ﺍﻟﺟﻬﺩ‬
401
3
396
398
409
‫ﻓﻲ ﺣﺎﻟﺔ ﺃﻥ ﻫﻧﺎﻙ ﻓﺭﻕ ﻓﻲ ﻁﻭﺭ ﺍﻟﺟﻬﺩ ﺃﻛﺑﺭ ﻣﻥ‬
2
‫ﺍﻷﺻﻠﻳﺔ‬
‫ﺎﺕ‬
‫ﺍﻟﺗﻌﻠﻳﻣ‬
7
7.1
7.2
.‫ﻗﺑﻝ ﺑﺩء ﺍﻟﺗﺷﻐﻳﻝ‬
7.3
‫ﻧﻭﻋﻳﺔ ﺗﺳﺎﻭﻱ‬
7.4
:‫ﻫﺎﻡ‬
‫ﺗﺭﺟﻣﺔ‬

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