TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The coupling agent is bis(sulfonyl azide).    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The composition comprises 10-80 wt.% of thermoplastic polymer, 10-55 wt.% of reinforcing element, 1-30 wt.% of non-halogen containing intumescent flame retardant, 1-20 wt.% of impact-modifier, 0.001-0.5 wt.% of coupling agent, and optionally at least one additive. Preferred Components: The thermoplastic polymer is impact-modified polypropylene. The reinforcing element is glass fiber. The non-halogen having intumescent flame retardant is organic phosphorus-based compound. The impact modifier is polyolefin elastomer other than the impact-modified polypropylene (IPP) of thermoplastic polymer. Preferred Assembly: The junction box comprises first part that is integral with one of the self-aligning devices and second part that is integral with the other self-aligning devices. The junction box is separate from the self-aligning devices. EXAMPLE - A glass fiber composition (test) comprising 0.4 wt.% SKB391G (RTM: propylene impact copolymer); 0.1 wt.% ENGAGE 8200 (RTM: ethylene/1-octene elastomer); 0.2 wt.% FR system 50A-2 (RTM: mixture of ammonium polyphosphate and pentaerythritol used as flame retardant); 0.04 wt.% Cabot PLASBLACK UN2014 (RTM: 50 wt.% carbon black filled polyethylene masterbatch); 0.002 wt.% IRGANOX 1010 (RTM: pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate); 0.0005 wt.% DPO-BSA/1010 (RTM: mixture of 4,4'-oxybisbenzenesulfonyl azide and IRGANOX 1010); 0.007 wt.% distearylthiodipropionate, stearyl 3,3'-thiodipropionate (DSTDP); 0.003 wt.% Cyasorba UV-3529 (RTM: UV stabilizer); and 0.25 wt.% long glass fiber was prepared. A comparative composition comprising 0.58 wt.% SKB391G; 0.1 wt.% ENGAGE 8200; 0.04 wt.% Cabot PLASBLACK UN2014; 0.02 wt.% IRGANOX 1010; 0.0005 wt.% DPO-BSA/1010; 0.007 wt.% DSTDP; 0.003 wt.% Cyasorba UV-3529; and 0.25 wt.% long glass fiber was prepared. Both test/comparative compositions showed following properties: tensile strength at 23 degrees C of 54.2/54.6 and flexural strength at 23 degrees C of 84.9/82.