NORME INTERNATIONALE CEI IEC INTERNATIONAL STANDARD 62013 2 Deuxième édition Second edition 2005 10 Lampes chapeaux utilisables dans les mines grisouteuses – Partie 2 Performance et autres sujets rela[.]
Sources de lumière
Each projector must be equipped with at least two light sources, with one serving as the primary source, in accordance with the requirements outlined in this section of IEC 62013.
A unique light source can be utilized if it is a non-filament type and has a lamp life of at least 5,000 hours, in accordance with section 8.2, and is replaced before reaching two-thirds of its nominal lifespan.
When a hat lamp is supplied with two filament bulbs, each capable of serving as the main source, the manufacturer must specify which bulb is the primary source and which is the auxiliary source If not designated, both bulbs must meet the requirements for the primary source.
Filament lamps used as primary and auxiliary sources must comply with IEC 60983 If the relevant data is not provided in IEC 60983, equivalent information must be supplied by the lamp manufacturer.
Support de la source de lumière
The main light source support must securely position and maintain the light in a convergent alignment with the reflector profile, in accordance with section 5.5.
Intensité lumineuse
The luminous intensity of the main light source in a fully assembled and properly oriented projector at the end of its useful working period must extend into a cone with a minimum of 1 candela This cone should not be positioned less than 30 degrees upward from the vertical, 60 degrees downward vertically, and 45 degrees horizontally on each side These parameters can be determined from the manufacturer's data or tested in accordance with section 8.1.
Source de lumière auxiliaire
The auxiliary light source is primarily designed for emergency use in the event of a failure of the main source and is exempt from the type testing outlined in Article 8.
Focalisation
La source de lumière principale doit être focalisée, ou capable d’être focalisée, de manière que le volume éclairé ne soit pas déformé par distorsion
Durée de vie de la lampe
The lifespan of both the main and auxiliary lamps must adhere to the specifications outlined in section 5.1.3 for compliance testing as per section 8.2 The minimum lifespan should not be less than 200 hours for the main source and 50 hours for the auxiliary source.
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Every headpiece must be equipped with at least two light sources, with one serving as the main source that complies with IEC 62013 standards Alternatively, a single non-filament light source can be utilized if it has a minimum lamp life of 5,000 hours and is replaced no later than two-thirds of its nominal life.
When a caplight is equipped with two lamps or filaments, the manufacturer must specify which one serves as the main source and which as the auxiliary source If no designation is made, both sources must comply with the standards set for the main source.
Filament lamps used as main and auxiliary sources must adhere to IEC 60983 standards If the relevant data sheet is not available in IEC 60983, the caplight manufacturer is required to provide an equivalent document.
The holder for the main light source shall be capable of locating and retaining it securely in a focused position with respect to the reflector profile in accordance with 5.5
The luminous intensity of the primary light source in a fully assembled headpiece, when positioned in its standard orientation at the conclusion of its useful working period, must project a cone with a minimum specified angle.
The cone must have a minimum vertical angle of 30 degrees upwards, 60 degrees downwards, and 45 degrees horizontally on each side These measurements can be determined using the manufacturer's specifications or through testing as outlined in section 8.1.
The auxiliary light source is primarily intended for emergency use if the main source fails and is exempt from the type tests in Clause 8
The main light source shall be focused, or capable of being focused, so that the light pattern is not impaired by distortion
The lifespan of both main and auxiliary lamps must adhere to the specifications outlined in the data sheets referenced in section 5.1.3, following the testing procedures in section 8.2 The minimum operational life is set at 200 hours for the main source and 50 hours for the auxiliary source.
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Durée de vie de la batterie (cycles de charge/décharge)
It is impossible to establish a definitive lifespan cycle for a battery due to the variety of battery types, charging regimes, and usage conditions.
It is essential for the manufacturer to provide users with instructions regarding the charging duration and routine checks necessary to ensure that the battery can meet its intended performance goals during actual operating periods Refer to Article 9 for more details.
The selection of battery charging equipment depends on the available time between consecutive work periods If the charging duration is insufficient to fully recharge the battery, the manufacturer may recommend that the user provide additional cap lamps.
Période de travail utile de la lampe-chapeau
The manufacturer must declare the useful working period of the lamp shade, considering the current consumed by the main light source and, if applicable, the average current consumed by any accessories during this period The testing requirements are outlined in section 8.1.
Durabilité
Les fermetures et les connecteurs doivent ờtre conỗus de maniốre qu’ils ne se desserrent pas en utilisation normale
La lampe-chapeau doit être construite à partir de matériaux qui sont résistants à l’abrasion en utilisation normale
6.4.3 Fonctionnalité après les essais mécaniques
After conducting the drop test as outlined in section 10.3 of IEC 62013-1, at least one light source must remain operational, and there should be no electrolyte leakage.
Masse
Unless otherwise agreed upon between the manufacturer and the user, the weight of the battery and housing must not exceed 2,750 g, and the total weight of the complete lamp and shade assembly must not exceed 3,250 g.
Facilité de fonctionnement
L’interrupteur doit être facilement accessible au porteur de la lampe-chapeau portée normalement L’interrupteur doit ờtre à action positive et doit avoir une position ôarrờtằ et une position ôallumageằ appropriộes
NOTE Il convient que l’interrupteur soit opérationnel pendant le port des gants de protection.
Maintenance
La lampe-chapeau doit ờtre construite de telle maniốre que les parties remplaỗables par l’utilisateur soient facilement accessibles après manœuvre ou démontage de toute fermeture spéciale
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
6.2 Battery life (charge/discharge cycles)
It is not possible to specify a cyclic life for the battery due to the multiplicity of battery types, charging regimes and conditions of use
Manufacturers must provide users with clear instructions regarding the battery's recharge time and necessary routine checks to ensure optimal performance during operational use, as outlined in Clause 9 and Annex A.
The selection of battery charging equipment is influenced by the available time between work periods If the recharge duration is inadequate for a complete battery recharge, the manufacturer may recommend that users acquire additional caplights.
The manufacturer must specify the caplight's useful working period when new, considering the current drawn by the main light source and, if applicable, the average current used by any accessories during that time The testing requirements are outlined in section 8.1.
Fasteners and connectors shall be designed so that they do not loosen in normal use
The caplight shall be constructed from materials which are resistant to abrasion in normal use
Following completion of the drop tests described in 10.3 of IEC 62013-1, at least one light source shall still be operable and there shall be no leakage of electrolyte
The combined weight of the battery and container must not exceed 2,750 g, while the total weight of the complete caplight assembly is limited to 3,250 g, unless a different agreement is made between the manufacturer and the user.
The caplight switch must be easily reachable for the wearer while in the typical wearing position It should operate positively, featuring an "off" position along with suitable "on" positions.
NOTE The switch should be operable while wearing protective gloves
The caplight shall be constructed in such a manner that user replaceable parts are easily accessible after operation or removal of any special fasteners
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Si la conception de la batterie le rend nécessaire, des mesures doivent être indiquées pour le remplissage initial, le remplissage d’appoint et le remplacement de l’électrolyte
Illumination pendant la période utile de travail
L’essai suivant doit être effectué dans une chambre sombre ó aucune lumière réfléchie n’influencera les résultats, à une température de 20 °C ± 5°C
Connecter le projecteur et le câble à une batterie complètement chargée du type à être évalué
NOTE 1 Il peut être nécessaire de recharger plusieurs fois la batterie pour obtenir la charge totale
Brancher la source de lumière principale et, si nécessaire, tout dispositif additionnel pour simuler la consommation totale de courant déclarée par le constructeur
Laisser fonctionner la lampe-chapeau pendant la période utile de travail
Enregistrer la tension de batterie
If an active device that affects the battery output is present, such as a switching regulator, it is important to measure the voltage at the input of that device.
Disconnect the projector and battery cable, then connect them to a direct current power source with a ripple voltage not exceeding 3 mV, ensuring it can maintain a voltage within ± 0.01 V during the test.
Régler la source d’alimentation à la tension mesurée à la fin de la période utile de travail
Pointer la source de lumière principale du projecteur
Positionner le projecteur de manière que le couvercle de protection soit à 1 000 mm ± 5 mm en retrait de la cellule photométrique de calibration
Move the projector or the photometric cell to the specified angles in section 5.3 while maintaining the previously mentioned distance Record the readings on the photometric cell at 5° intervals or within a defined rectangular grid that yields the same results Rotate the projector 90 degrees from its central axis and repeat the test.
NOTE 3 Cet essai peut être effectué par le fabricant de lampe-chapeau.
Light sources
Every headpiece must be equipped with at least two light sources, with one serving as the main source that complies with IEC 62013 standards Alternatively, a single non-filament light source can be utilized if it has a minimum lamp life of 5,000 hours and is replaced no later than two-thirds of its nominal life.
When a caplight is equipped with two lamps or filaments, the manufacturer must specify which one serves as the main source and which as the auxiliary source If no designation is made, both sources must comply with the standards set for the main source.
Filament lamps used as primary and secondary light sources must adhere to the standards set by IEC 60983 If the relevant data sheet is not available in IEC 60983, the caplight manufacturer is required to provide an equivalent document.
Light source holder
The holder for the main light source shall be capable of locating and retaining it securely in a focused position with respect to the reflector profile in accordance with 5.5.
Luminous intensity
The luminous intensity of the primary light source in a fully assembled headpiece, when positioned in its standard orientation at the conclusion of its useful working period, must project a cone with a minimum specified angle.
The cone must have a minimum vertical angle of 30 degrees upwards, 60 degrees downwards, and 45 degrees horizontally on each side These angles can be determined using the manufacturer's specifications or through testing as outlined in section 8.1.
Auxiliary light source
The auxiliary light source is primarily intended for emergency use if the main source fails and is exempt from the type tests in Clause 8.
Focus
The main light source shall be focused, or capable of being focused, so that the light pattern is not impaired by distortion
Lamp life
The lifespan of the main and auxiliary lamps must adhere to the specifications outlined in the data sheets in section 5.1.3, following the testing procedures in section 8.2 The main light source should have a minimum lifespan of 200 hours, while the auxiliary light source should last at least 50 hours.
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
6.2 Durée de vie de la batterie (cycles de charge/décharge)
It is impossible to establish a definitive lifespan cycle for a battery due to the variety of battery types, charging regimes, and usage conditions.
It is essential for the manufacturer to provide users with instructions regarding the charging duration and routine checks necessary to ensure that the battery can meet its intended performance goals during actual operating periods Refer to Article 9 for more details.
The selection of battery charging equipment depends on the available time between two consecutive working periods If the charging duration is insufficient to fully recharge the battery, the manufacturer may recommend that the user provide additional cap lamps.
6.3 Période de travail utile de la lampe-chapeau
The manufacturer must declare the useful working period of the lamp shade, considering the current consumed by the main light source and, if applicable, the average current consumed by any accessories during this period The testing requirements are specified in section 8.1.
Les fermetures et les connecteurs doivent ờtre conỗus de maniốre qu’ils ne se desserrent pas en utilisation normale
La lampe-chapeau doit être construite à partir de matériaux qui sont résistants à l’abrasion en utilisation normale
6.4.3 Fonctionnalité après les essais mécaniques
After conducting the drop test as outlined in section 10.3 of IEC 62013-1, at least one light source must remain operational, and there should be no electrolyte leakage.
Unless otherwise agreed upon between the manufacturer and the user, the weight of the battery and housing must not exceed 2,750 g, and the total weight of the complete lamp and shade assembly must not exceed 3,250 g.
L’interrupteur doit être facilement accessible au porteur de la lampe-chapeau portée normalement L’interrupteur doit ờtre à action positive et doit avoir une position ôarrờtằ et une position ôallumageằ appropriộes
NOTE Il convient que l’interrupteur soit opérationnel pendant le port des gants de protection
La lampe-chapeau doit ờtre construite de telle maniốre que les parties remplaỗables par l’utilisateur soient facilement accessibles après manœuvre ou démontage de toute fermeture spéciale
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Battery life (charge/discharge cycles)
It is not possible to specify a cyclic life for the battery due to the multiplicity of battery types, charging regimes and conditions of use
Manufacturers must provide users with clear instructions regarding the battery's recharge time and essential routine checks to ensure optimal performance during operational periods, as outlined in Clause 9 and Annex A.
The selection of battery charging equipment is influenced by the available time between work periods If the recharge duration is inadequate for a complete battery recharge, the manufacturer may recommend supplying extra caplights.
Caplight useful working period
The manufacturer must specify the caplight's useful working period when new, considering the current drawn by the main light source and, if applicable, the average current used by any accessories during that time The testing requirements are outlined in section 8.1.
Durability
Fasteners and connectors shall be designed so that they do not loosen in normal use
The caplight shall be constructed from materials which are resistant to abrasion in normal use
Following completion of the drop tests described in 10.3 of IEC 62013-1, at least one light source shall still be operable and there shall be no leakage of electrolyte
Mass
The combined weight of the battery and container must not exceed 2,750 g, while the total weight of the complete caplight assembly is limited to 3,250 g, unless a different agreement is made between the manufacturer and the user.
Ease of operation
The caplight switch must be easily reachable for the wearer while in the standard wearing position It should provide a positive action and include a clearly defined "off" position, along with appropriate "on" settings.
NOTE The switch should be operable while wearing protective gloves.
Maintainability
The caplight shall be constructed in such a manner that user replaceable parts are easily accessible after operation or removal of any special fasteners
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Si la conception de la batterie le rend nécessaire, des mesures doivent être indiquées pour le remplissage initial, le remplissage d’appoint et le remplacement de l’électrolyte
8.1 Illumination pendant la période utile de travail
L’essai suivant doit être effectué dans une chambre sombre ó aucune lumière réfléchie n’influencera les résultats, à une température de 20 °C ± 5°C
Connecter le projecteur et le câble à une batterie complètement chargée du type à être évalué
NOTE 1 Il peut être nécessaire de recharger plusieurs fois la batterie pour obtenir la charge totale
Brancher la source de lumière principale et, si nécessaire, tout dispositif additionnel pour simuler la consommation totale de courant déclarée par le constructeur
Laisser fonctionner la lampe-chapeau pendant la période utile de travail
Enregistrer la tension de batterie
If an active device that affects the battery output is present, such as a cutoff regulator, it is essential to measure the voltage at the input of that device.
Disconnect the projector and battery cable, then connect them to a direct current power source with a ripple voltage not exceeding 3 mV, ensuring it can maintain a voltage within ± 0.01 V during the test.
Régler la source d’alimentation à la tension mesurée à la fin de la période utile de travail
Pointer la source de lumière principale du projecteur
Positionner le projecteur de manière que le couvercle de protection soit à 1 000 mm ± 5 mm en retrait de la cellule photométrique de calibration
Move the projector or the photometric cell to the specified angles in section 5.3 while maintaining the previously mentioned distance Record the readings on the photometric cell at 5° intervals or within a defined rectangular grid that yields the same results Rotate the projector 90 degrees around its central axis and repeat the test.
NOTE 3 Cet essai peut être effectué par le fabricant de lampe-chapeau
8.2 Durée de vie de la lampe
All lamps must be tested in accordance with Section 4 of IEC 60983 If the lamp manufacturer provides a data sheet indicating such results, it may be accepted without additional testing.
The manufacturer is required to create a comprehensive manual for installation, operation, maintenance, and repair, which must include the following key provisions: a) information on the safe use of the hat lamp; b) the operational lifespan of the hat lamp; c) the types of permitted lamps.
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
If necessitated by the battery design, means shall be provided for initial filling, subsequent topping up and changing of electrolyte
Illumination throughout the useful working period
The following test shall be carried out in a darkened room or enclosure where any reflected light will not influence the results, at a temperature of 20 o C ± 5 °C
Connect the headpiece and cable to a fully charged battery of the type to be evaluated
NOTE 1 It may be necessary to cycle the battery several times to achieve full capacity
Switch on the main light source and, if appropriate, any additional device to simulate the manufacturer’s declared total current drain
Allow the caplight to operate for the useful working period
NOTE 2 If an active device which affects the battery output is present, for example a switching regulator, the voltage shall be measured at the input of such a device
To ensure accurate testing, disconnect the headpiece and cable from the battery, then connect them to a DC power source that has a residual ripple of no more than 3 mV and can maintain the voltage within ±0.01 V throughout the duration of the test.
Adjust the power supply to the voltage measured at the end of the useful working period
Focus the main light source of the headpiece
Position the headpiece so that the protective cover is 1 000 mm ± 5 mm away from a calibrated photometric cell
Adjust the headpiece or photocell according to the angles outlined in section 5.3, ensuring the specified distance is maintained Take readings from the photocell at 5-degree intervals or within a designated rectangular grid that yields equivalent results Rotate the headpiece 90 degrees around its central axis and conduct the test again.
NOTE 3 This test may be carried out by the caplight manufacturer.
Lamp life
All lamps shall be tested in accordance with Section 4 of IEC 60983 If the lamp manufacturer provides a data sheet showing such test results, it may be accepted without further testing
The manufacturer is required to create a detailed manual covering installation, operation, maintenance, and repair, which must include essential information on the safe usage of the caplight, its useful working period, and the types of lamps that are permitted.
Licensed to MECON Limited for internal use in Ranchi and Bangalore, this document outlines the user's responsibilities, including periodic checks to ensure ongoing safety, maintenance, and lighting performance (refer to Appendix A) It also includes a list of user-replaceable parts and special tools required for maintenance.
Hat lamps that comply with this section of IEC 62013 must be labeled with the following information: a) the commercial brand name of the lamp manufacturer; b) the manufacturer's identification type; c) the standard number (IEC 62013-2); d) a date or code on the battery housing or components indicating the month and year of manufacture.
NOTE Lorsque la lampe-chapeau satisfait aussi aux exigences de la CEI 62013-1, il n’est pas nécessaire de répéter l’information
MECON Limited has licensed this document for internal use at the Ranchi/Bangalore location, provided by the Book Supply Bureau It is essential for users to conduct periodic checks to ensure safe operation, maintenance, and optimal lighting performance, as detailed in Annex A Additionally, the document includes information on replaceable parts and a list of special tools required for maintenance.
Caplights that comply with IEC 62013 standards must display specific information, including the manufacturer's name or trademark, type identification, the standard number (IEC 62013-2), and a date or code on the battery container or cells indicating the month and year of manufacture.
NOTE Where the caplight also meets the requirements of IEC 62013-1, it is not necessary to repeat the information
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Exemples d’instructions du constructeur sur les essais de routine de l’utilisateur
NOTE Lorsque des exigences nationales ou locales s’appliquent, il convient qu'elles soient prioritaires sur les dispositions suivantes
To ensure optimal performance and safety, it is essential to select a representative sample of fully charged cap lamps from the charging racks and test all lamps within a four-month period Record the identification or serial numbers of each cap lamp and conduct a visual inspection for any defects that may affect performance or safety Any identified defects must be repaired, or the cap lamp should be removed from service Additionally, clean the cap lamps according to the manufacturer's instructions Finally, activate the main light source for a duration equivalent to a full workday, including any transport time within the mine, and consider any additional current required if the cap lamp is to be used with an accessory during the testing process.
Position the spotlight of the hat lamp at a distance of 1,000 mm ± 5 mm from an appropriate photometric cell Identify the location of the highest measured illumination within a circle of diameter 100 mm ± 2 mm on a plane parallel to the protective cover of the spotlight, and record the value in lux (E max).
If the test is not conducted in a dark room or if the photometric cell is not shielded from stray ambient light, it is essential to measure the impact of this external light before the test and subtract that value from the test result.
Placer le projecteur de la lampe-chapeau à une fenêtre d’une sphère enveloppante ayant les dimensions indiquées à la Figure A.1
Mesurer le flux lumineux en lumens
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
Examples of the manufacturer’s instructions on user routine testing
NOTE Where national or local requirements apply, these should take precedence over the following
To ensure the safety and performance of caplights, select a representative sample of fully charged units from the charging racks for testing within a four-month period Record the identification or serial numbers of each caplight and conduct a visual inspection for any defects Any identified defects should be repaired or the caplight should be removed from service Clean the caplights following the manufacturer's instructions, and activate the main light source for a duration that matches the working shift, including travel time within the mine If the caplight will be used with an accessory, consider the additional current during testing.
Position the caplight headpiece 1 000 mm ± 5 mm from a suitably calibrated photocell
Find the position of the highest measured value of illumination within a circle of diameter
100 mm ± 2 mm on a plane parallel to the headpiece protective cover and record the value in lux (E max )
To ensure accurate test results, it is crucial to conduct the test in a darkened room and shield the photocell from ambient light If this is not possible, measure the extraneous light beforehand and subtract this value from the final test result.
Place the caplight headpiece at the window of an integrating sphere having the dimensions shown in Figure A.1
Measure the luminous flux in lumens
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
A Agrandissement de la paroi (considérée à partir de la direction de la flèche)
Figure A.1 – Dessin schématique d’une sphère photométrique typique
Il convient que l’éclairement maximal à 1 m ne soit pas inférieur à 1 500 lx (lux) b) Exemple 2
Le flux lumineux ne doit pas être inférieur à 10 lm (lumens)
Si une lampe-chapeau ne satisfait pas à l’exigence d'acceptation, il convient de prendre une action corrective avant de remettre la lampe-chapeau en service
The test report must include, at a minimum, the following information: a) the name of the mine; b) the testing organization; c) the name of the expert who conducted the test; d) the location of the room containing the lamps; e) the number of cap lamps in the room; f) the number of cap lamps tested; g) the manufacturer and type of cap lamps.
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
A Amplification of the baffle (viewed from direction of the arrow)
Figure A.1 – Schematic drawing of a typical photometric sphere
The maximum illumination at 1 m should not be less than 1 500 lx (lux) b) Example 2
The luminous flux shall not be less than 10 lm (lumens)
If a caplight fails to meet the pass requirement, corrective action should be taken before the caplight is put back into service
The test report must contain essential details, including the mine's name, the testing department, the name of the testing expert, the location of the lamp room, the total number of caplights in the lamp room, the number of caplights inspected, and the manufacturer and type of caplights.
This document is licensed to MECON Limited for internal use in Ranchi and Bangalore, provided by the Book Supply Bureau It outlines the minimum light output requirements, the number of lamps that do not meet these standards, the date of testing, and includes the name and signature of the tester.
Numéro de la lampe-chapeau Résultat Défaut Action corrective Remarques
MECON Limited is licensed for internal use in Ranchi and Bangalore, with materials supplied by the Book Supply Bureau The testing process includes essential criteria such as the minimum light output requirement, the count of caplights that do not meet this standard, the date of the test, and the name and signature of the tester.
Caplight number Result Fault Corrective action Remarks
LICENSED TO MECON Limited - RANCHI/BANGALORE FOR INTERNAL USE AT THIS LOCATION ONLY, SUPPLIED BY BOOK SUPPLY BUREAU.
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