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Technical terms of insulators

RTV, RTL, section length, SCL, SML, and strike distance are the common technical terms of insulators, and the interpretation / explanation is as follows.

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Technical terms of insulators:
RTV – Room Temperature Vulcanate (elastomer sealant) is a silicone rubber that cures at room temperature.
RTL – Routine Test Load is the maximum design tension load, which is rated at 50 percent of the part’s SML. All parts are tested at this rating prior to being shipped.
Section length – The straight-line distance between the coupling points of the insulator’s end fittings
SCL – Specified Cantilever Load is the minimum ultimate cantilever strength of the part.
SML – Specified Mechanical Load is the minimum ultimate tensile strength of the part.
Strike Distance – The shortest distance across the insulator surface, between the end fittings of the insulator; also commonly referred to as the dry arc distance or tight string distance.

In addition to RTV, RTL, section length, SCL, SML, and strike distance, the ANSI, Boron-free E-Glass, combined load charts, corona, dry band arcing, E-glass, flashover, IEC, leakage distance, RCL, and RIV are also technical terms of insulators.

 

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