Lightolier GUARDSMAN GVB SERIES 1X4 دليل المستخدم

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GUARDSMAN GVB SERIES 1X4
Page 1 of 2 VANDAL RESISTANT, 1'x4' SURFACE BOX FLUORESCENT, 1 OR 2 LAMP, T8
Features
• Excellent for locations where vandal resistance is required.
• 20 gauge steel body.
• Prismatic lens is 3/16" thick, pattern 12, minimum impact strength,
130 foot pounds.
• Full perimeter gasketing (closed cell Neoprene) between door frame
and lens.
• Tamper resistant holt head screws secure lens to housing.
• 45° mitered corners (body and door frame).
• Only 5-1/2" deep.
• 54.9% eff

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GUARDSMAN GVB SERIES 1X4 Page 2 of 2 VANDAL RESISTANT, 1'x4' SURFACE BOX FLUORESCENT, 1 OR 2 LAMP, T8 PHOTOMETRY MODEL NO. GVB1SFSVL232120SO coefficients of utilization — zonal cavity method RF 20 20 20 RC 80 50 30 RW 70 50 30 50 30 10 50 30 10 160 58 56 55 53 52 53 51 50 256 52 48 49 46 44 47 45 43 351 46 42 44 41 38 42 40 37 448 42 37 40 36 33 38 35 33 544 38 33 36 32 29 35 32 29 641 34 30 33 29 26 32 28 26 738 31 27 30 26 23 29 26 23 836 29 24 28 24 21 27 24 21 933 26 22 26 22 19 25 22 19