electricalscho

An HID light source in which the arc tube’s primary internal element is Mercury Vapor.

The time needed for a fuse element to melt, thereby initiating operation of the fuse. Also known as Fuse Melt Time.

A testing device that applies a DC voltage and measures the resistance (in millions of ohms) offered by conductor’s or equipment insulation.

An electrical system or cable designed to operate between 1kv and 38kv.

A luminary is classified as having a medium light distribution when its max candlepower point falls between 2.25MH 3.75MH TRL. The maximum luminaire spacing-to-mounting height ratio is generally 7.5 or less.