Low pressure sodium lamp construction, Sox-e and sox lamps, Physical dimensions – Philips SOX User Manual
Page 3
Ordering
Code
Bulb
SOX-E 18
T-17
SOX 35
T-17
SOX 55
T-17
SOX 90
T-21
SOX 135
T-21
SOX 180
T-21
Max. Diameter (B)
In.
mm
2
1
⁄
8
54
2
1
⁄
8
54
2
1
⁄
8
54
2
11
⁄
16
68
2
11
⁄
16
68
2
11
⁄
16
68
MOL
1
(A)
In.
mm
8
1
⁄
2
216
12
3
⁄
16
310
16
3
⁄
4
425
20
3
⁄
4
528
30
1
⁄
2
775
44
1
⁄
8
1120
Physical Dimensions
—SOX-E and SOX Lamps
Low Pressure Sodium Lamp Construction
LCL
2
(C)
In.
mm
5
1
⁄
2
141
7
1
⁄
4
184
9
1
⁄
2
243
11
1
⁄
2
292
16
3
⁄
8
416
23
584
Light Length (D)
In.
mm
3
5
⁄
8
92
7
1
⁄
2
192
12
305
5
7
⁄
8
403
25
7
⁄
16
646
38
965
1. MOL = Maximum Overall Length
2. LCL = Light Center Length
Base: Double Contact Bayonet-Medium (BY-22d)
A
B
C
D
1
7
2
5
3
4
6
8
1. Non-Metallic-Bayonet Base will not corrode or stick in lamp
socket, providing quick, safe relamping. Locking pins on lamp base
assure the lamp locks in socket and cannot vibrate loose. SOX-E
lamps are distinguished by the use of the black bases compared
to the tan bases used on SOX lamps.
2. Sodium Retaining Reservoirs provide even distribution of
sodium for 100% lumen maintenance, long lamp life and lamp
wattage control.
3. U-Bend Insulation Feature controls lamp wattage rise and
helps provide more consistent lamp life.
4. Rough Service Arc Tube Support System eliminates arc
tube movement along lamp axis yet allows radial arc tube flex.
It provides highest protection from shock and vibration.
5. Uniform Indium Oxide Heat Reflecting Coating creates
highest luminous efficacy of all light sources and contributes to 100%
lumen maintenance by keeping arc tube at the optimum temperature.
6. Barium Getter absorbs trace gases to properly maintain correct
arc tube temperature and maximize light output.
7.Triple Coil Electrode with full tungsten support holds more
emission paste for superior life.Tungsten supports prevent
electrode vibration keeping emissive paste on the electrode.
8. Fuse Coil in lamp base provides additional protection to ballast.
By preventing D.C. currents that may occur at end of lamp life,
ballast currents are lower, ballast temperatures are lower and
ballast life is longer.