The electrical protection of cold-cathode luminous discharge-tube installations

The importance of providing adequate protection against the risk of fire and electric shock due to faults developing on high-voltage discharge-tube circuits has recently come into prominence on account of the extensive use of such apparatus for industrial purposes. The paper explains the peculiar difficulties met with in devising suitable protective devices, and, after describing the principal types of equipment at present available, gives details of-certain recent developments for which the author has been responsible.