ULC 61479 PDF

Live working – Flexible Conductor Covers (Line Hoses) of Insulating Material (CEI/IEC 61479:2001+A1:2002, IDT) (CAN/ULC 61479)
standard by Underwriters Laboratories of Canada, 08/10/2012

ULC 61479 – Live working – Flexible Conductor Covers (Line Hoses) of Insulating Material (CEI/IEC 61479:2001+A1:2002, IDT) (CAN/ULC 61479)

This National Standard of Canada is applicable to flexible insulating covers (line hoses) for the protection of workers from accidental contact with live or earthed electrical conductors and for the avoidance of short circuits during live working.

Five classes of conductor covers, differing in electrical characteristics, are provided and designated as class 0, class 1, class 2, class 3, and class 4.

Six categories of conductor covers differing in composition and properties are provided: category A – acid resistant, category H – oil resistant, category C – formulated for extreme low temperature environments, category W – formulated for extreme high temperature environments, category Z – ozone resistant, and category P – formulated for humid environment.

Various styles of conductor covers, differing in construction characteristics are available and six of these are designated as style A, style B, style C, style D, style E, (see figure 1), and style F.