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immediate downloadReleased: 1980-09-30
BS 5972:1980
Specification for photoelectric control units for road lighting
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| Standard number: | BS 5972:1980 |
| Pages: | 20 |
| Released: | 1980-09-30 |
| ISBN: | 0 580 11595 X |
| Status: | Standard |
DESCRIPTION
BS 5972:1980
This standard BS 5972:1980 Specification for photoelectric control units for road lighting is classified in these ICS categories:
- 29.120.40 Switches
- 93.080.40 Street lighting and related equipment
This standard specifies requirements for the safety and performance of:
- photoelectric control units (PECU);
- photocell sockets.
Both items are for use in switching road lighting lanterns, road traffic signs and other apparatus in response to variations in daylight. The PECU and sockets are for operation on supply voltages not exceeding 250 V to earth or between terminals, and for switching a current not exceeding 10 A.
Requirements for photo-electric control units and associated sockets for operation on supply voltages not exceeding 250 V and capable of switching a current not exceeding 10 A. Includes requirements for electrical and photometric performances.